Typically 80 hours for full-time bi-weekly. Used for hourly accrual.
PTO hours accrued per pay period/month (e.g., 4 hours per pay period). If using annual rate, this may be calculated automatically.
Your Accrued PTO Summary
— PTO Hours
Employment Duration: — days
Accrual Periods: —
Effective Accrual Rate/Period: — hours
Formula Used: Accrued PTO = (Total Time Employed in Days / 365.25) * Annual Accrual Rate (adjusted by accrual method if applicable). For hourly, it's (Total Hours Worked / Standard Hours per Year) * Annual PTO Rate.
Key Assumptions:
Accrual is linear and continuous.
No PTO was taken or cashed out.
Standard hours assumed based on selected method.
PTO Accrual Over Time
PTO Accrual Milestones
Date
Days Employed
Accrual Periods
Estimated Accrued PTO (Hours)
What is Accrued PTO?
Accrued Paid Time Off (PTO) refers to the amount of vacation, sick leave, or personal time that an employee has earned but not yet used. Companies offer PTO as a benefit, allowing employees to take time off work for various reasons without losing pay. Understanding how to calculate accrued PTO is crucial for both employees and employers to ensure accurate tracking and fair management of this valuable benefit. It helps employees know how much time they have available and assists employers in managing labor costs and employee satisfaction.
Who should use it:
Employees: To track their earned leave, plan vacations, and ensure they are not losing entitled time off.
HR Professionals: To manage employee benefits, ensure compliance with company policies and labor laws, and process leave requests accurately.
Small Business Owners: To set up and administer PTO policies effectively, ensuring fair treatment of all staff.
Common Misconceptions:
PTO is a fixed amount given at the start of the year: In reality, PTO often accrues over time, meaning you earn a portion of your total annual allowance with each pay period or month.
All PTO policies are the same: Accrual rates, carryover limits, and usage rules vary significantly between companies and even by employee tenure.
PTO is automatically granted: Employees usually need to request PTO in advance, subject to manager approval and business needs.
PTO Accrual Formula and Mathematical Explanation
Calculating accrued PTO involves determining the duration of employment and applying the company's specific accrual policy. The core idea is to prorate the annual PTO allowance based on the time elapsed since the employment start date.
Basic Accrual Formula (Linear)
The most common method for how to calculate accrued PTO assumes a linear accrual rate:
Days Employed: The total number of days from the employment start date up to the calculation date.
365.25: Accounts for leap years, providing a more accurate average year length.
Annual PTO Rate: The total number of PTO hours an employee is entitled to per full year of employment.
Alternative Accrual Methods
Some companies use accrual based on pay periods:
Hourly: PTO is earned based on actual hours worked. Formula might be: Accrued PTO = (Total Hours Worked / Standard Work Hours per Year) * Annual PTO Rate
Bi-weekly/Semi-monthly/Monthly: A fixed amount of PTO is added after each pay period or month. The Accrual Base Rate input in the calculator helps determine this. For example, if you get 80 hours annually and are paid bi-weekly (26 periods), your rate per period is approximately 80 / 26 ≈ 3.08 hours.
Variable Explanations Table
Variable
Meaning
Unit
Typical Range
Annual PTO Rate
Total PTO hours earned in a full year.
Hours
80-200+ (varies greatly)
Employment Start Date
The first day of employment.
Date
N/A
Calculation Date
The date up to which PTO is calculated.
Date
N/A
Days Employed
Number of days between Start Date and Calculation Date.
Days
0 to ∞
Accrual Method
How PTO is distributed (hourly, by pay period).
Categorical
Hourly, Bi-weekly, Monthly, etc.
Hours Worked per Period
Standard hours in a pay period (e.g., 40 hrs/week * 2 weeks).
Hours
40-80+
Accrual Base Rate
Fixed PTO hours granted per pay period/month.
Hours
1-10+
Practical Examples (Real-World Use Cases)
Example 1: Standard Salaried Employee
Scenario: Sarah is a salaried employee who started her job on January 15, 2023. Her company offers 120 hours of PTO per year, accrued evenly throughout the year. We want to know her accrued PTO as of July 1, 2023.
Result Interpretation: As of July 1, 2023, Sarah has accrued approximately 54.55 hours of PTO. This reflects roughly half a year's worth of accrual, adjusted for the specific start date.
Example 2: Hourly Employee with Bi-weekly Accrual
Scenario: John is an hourly employee who began working on March 1, 2023. His policy grants 4 hours of PTO for every 80 hours worked, paid out bi-weekly. He works a standard 40-hour week. We need to calculate his accrued PTO on September 1, 2023.
Inputs:
Annual PTO Accrual Rate: (Derived from policy: 4 hours/80 worked = 0.05 PTO/hour worked. Per year: 0.05 * 2080 standard work hours = 104 hours)
Employment Start Date: 2023-03-01
Date for Calculation: 2023-09-01
Accrual Method: Hourly
Hours Worked per Period: 80 hours (standard for bi-weekly)
Accrual Base Rate: 4 hours (per 80 hours worked)
Calculation:
Duration: March (31) + April (30) + May (31) + June (30) + July (31) + Aug (31) = 184 days
Standard Work Weeks: 184 days / 7 days/week ≈ 26.29 weeks
Total Hours Worked (approx): 26.29 weeks * 40 hours/week ≈ 1051.6 hours
Effective Accrual Rate/Period (derived from policy): (4 hours / 80 hours worked) = 0.05 PTO hours per hour worked.
Total Accrued PTO = Total Hours Worked * (Accrual Rate per Hour Worked) = 1051.6 * 0.05 ≈ 52.58 hours
Result Interpretation: By September 1, 2023, John has accrued approximately 52.58 hours of PTO based on his work hours and the company's policy.
How to Use This Accrued PTO Calculator
Enter Annual PTO Rate: Input the total number of PTO hours you receive annually.
Input Start Date: Select your official employment start date using the date picker.
Select Calculation Date: Choose the date for which you want to calculate your PTO balance.
Select Accrual Method: Choose how your PTO is accrued (e.g., hourly, bi-weekly, monthly).
Enter Supporting Details: Depending on the accrual method, you might need to input hours worked per period or a base rate per period. For instance, if you choose 'Hourly', the calculator uses the 'Hours Worked per Period' (often 80 for bi-weekly) to determine total hours worked over the duration. If you choose 'Monthly', it expects the 'Accrual Base Rate' per month.
Click Calculate: Press the "Calculate Accrued PTO" button.
How to Read Results:
Main Result (Highlighted): This is your total estimated accrued PTO in hours up to the calculation date.
Intermediate Values: These provide context:
Employment Duration: How many days you've been employed.
Accrual Periods: The number of pay periods or months that have passed.
Effective Accrual Rate/Period: How much PTO you earn per pay cycle or month based on your annual rate and method.
Key Assumptions: Review these to understand the model's limitations (e.g., linear accrual, no PTO taken).
Table & Chart: Visualize your PTO accrual over time at key milestones.
Decision-Making Guidance: Use this information to plan your time off, negotiate for more PTO, or verify your pay stubs. If the calculated amount differs significantly from your employer's statement, it's a good starting point for a conversation with HR.
Key Factors That Affect PTO Accrual Results
Several factors influence how much PTO you accrue. Understanding these helps you interpret your balance accurately:
Accrual Rate & Policy: The most direct factor. A higher annual PTO rate or a faster accrual per pay period directly increases your balance. Policies can also differ based on seniority.
Employment Tenure: Many companies offer increased PTO rates for employees who have been with the company longer. This calculator assumes a consistent rate, but real-world policies might have step increases.
Accrual Method: As demonstrated, whether PTO accrues hourly, weekly, bi-weekly, or monthly significantly impacts the timing and calculation. Hourly accrual is tied to actual work, while period-based accrual is more predictable.
Hours Worked (for Hourly Accrual): If your PTO is tied to hours worked, fluctuations in your schedule (overtime, reduced hours, unpaid leave) will directly affect your earned PTO.
Company Policies on Carryover: While this calculator shows *accrued* PTO, your *available* PTO might be limited by company policies that cap the amount you can carry over to the next year. Excess accrued PTO might be forfeited.
PTO Usage: This calculator assumes no PTO has been used. Every hour you take off reduces your accrued balance. Tracking usage alongside accrual is vital for an accurate picture.
Part-Time vs. Full-Time Status: Part-time employees often accrue PTO on a pro-rata basis compared to full-time employees, meaning they earn less PTO over the same period.
State and Local Laws: Some jurisdictions have laws mandating minimum PTO accrual or requiring payout of unused PTO upon termination. This calculator doesn't account for specific legal requirements.
Frequently Asked Questions (FAQ)
What is the difference between accrued PTO and available PTO?
Accrued PTO is the total amount you have earned up to a certain date. Available PTO is the amount you can actually use, which is your accrued balance minus any PTO you have already taken and potentially adjusted for carryover limits.
Can my employer change my PTO accrual rate?
Yes, typically. Employers can change PTO policies, including accrual rates, usually with advance notice. Changes often apply to future accruals, not earned but unused PTO, unless specified otherwise and legally permissible.
What happens to my accrued PTO if I leave the company?
This depends on company policy and state law. Many states require employers to pay out unused, accrued PTO upon termination. Some policies may allow payout even if not legally required, while others might have specific rules about forfeiting the time.
How does taking unpaid leave affect my accrued PTO?
If your PTO accrues based on hours worked (hourly method), taking unpaid leave means you work fewer hours, thus accruing less PTO during that period. If PTO accrues on a fixed schedule (e.g., monthly), unpaid leave usually doesn't directly impact the accrual itself, but it does reduce your overall paid time off balance when you use it.
My calculation is different from my employer's PTO balance. Why?
Possible reasons include: differences in calculation methods (especially if your employer uses a unique system), PTO taken that wasn't accounted for, carryover limits affecting your available balance, or company-specific adjustments (e.g., prorating for mid-year hires differently than a linear model). It's best to clarify with your HR department.
Do holidays count towards PTO?
Generally, no. Paid holidays are typically a separate benefit from PTO. PTO is usually reserved for vacation, personal time, or sick days that you proactively request or use when needed.
Can PTO accrue indefinitely?
Most companies implement policies to prevent indefinite accrual. This often includes annual caps on carryover amounts or "use-it-or-lose-it" policies (where legally permissible) that require employees to use a certain amount of PTO each year.
How is PTO calculated for the first year of employment?
PTO in the first year is typically prorated based on the employee's start date. If you start mid-year, you'll accrue a portion of the annual PTO allowance corresponding to the time remaining in the year. This calculator handles prorating based on days employed.
var ptoChart = null; // Global variable for chart instance
function isDateValid(dateString) {
if (!dateString) return false;
var regEx = /^\d{4}-\d{2}-\d{2}$/;
if(!dateString.match(regEx)) return false; // Invalid format
var d = new Date(dateString);
var dNum = d.getTime(); // NaN value, if form is invalid.
return !isNaN(dNum);
}
function getDaysBetweenDates(date1Str, date2Str) {
if (!isDateValid(date1Str) || !isDateValid(date2Str)) return 0;
var startDate = new Date(date1Str);
var endDate = new Date(date2Str);
var timeDiff = endDate.getTime() – startDate.getTime();
var daysDiff = Math.ceil(timeDiff / (1000 * 3600 * 24));
return daysDiff >= 0 ? daysDiff : 0;
}
function calculatePTO() {
// Clear previous errors
document.getElementById('annualAccrualRateError').innerText = ";
document.getElementById('employmentStartDateError').innerText = ";
document.getElementById('calculationDateError').innerText = ";
document.getElementById('hoursWorkedPerPeriodError').innerText = ";
document.getElementById('accrualBaseRateError').innerText = ";
// Get input values
var annualRateInput = document.getElementById('annualAccrualRate');
var startDateInput = document.getElementById('employmentStartDate');
var calcDateInput = document.getElementById('calculationDate');
var methodSelect = document.getElementById('accrualMethod');
var hoursPerPeriodInput = document.getElementById('hoursWorkedPerPeriod');
var baseRateInput = document.getElementById('accrualBaseRate');
var annualRate = parseFloat(annualRateInput.value);
var startDateStr = startDateInput.value;
var calcDateStr = calcDateInput.value;
var method = methodSelect.value;
var hoursPerPeriod = parseFloat(hoursPerPeriodInput.value);
var baseRate = parseFloat(baseRateInput.value);
// — Input Validation —
var isValid = true;
if (isNaN(annualRate) || annualRate <= 0) {
document.getElementById('annualAccrualRateError').innerText = 'Please enter a valid positive number for annual PTO.';
isValid = false;
}
if (!isDateValid(startDateStr)) {
document.getElementById('employmentStartDateError').innerText = 'Please select a valid employment start date.';
isValid = false;
}
if (!isDateValid(calcDateStr)) {
document.getElementById('calculationDateError').innerText = 'Please select a valid calculation date.';
isValid = false;
}
var daysEmployed = getDaysBetweenDates(startDateStr, calcDateStr);
if (daysEmployed < 0) {
document.getElementById('calculationDateError').innerText = 'Calculation date must be on or after the start date.';
isValid = false;
}
if (method === 'hourly') {
if (isNaN(hoursPerPeriod) || hoursPerPeriod <= 0) {
document.getElementById('hoursWorkedPerPeriodError').innerText = 'Please enter valid hours worked per period (e.g., 80 for bi-weekly).';
isValid = false;
}
}
if (method === 'biweekly' || method === 'semimonthly' || method === 'monthly') {
if (isNaN(baseRate) || baseRate <= 0) {
document.getElementById('accrualBaseRateError').innerText = 'Please enter a valid positive number for PTO hours accrued per period/month.';
isValid = false;
}
}
if (!isValid) {
// Clear results if validation fails
document.getElementById('main-result').innerText = '– PTO Hours';
document.getElementById('intermediate-employmentDuration').innerHTML = 'Employment Duration: — days';
document.getElementById('intermediate-accrualPeriods').innerHTML = 'Accrual Periods: –';
document.getElementById('intermediate-calculatedRate').innerHTML = 'Effective Accrual Rate/Period: — hours';
clearChart();
document.getElementById('ptoTableBody').innerHTML = ";
return;
}
// — Calculations —
var employedDays = daysEmployed;
var employedYears = employedDays / 365.25;
var accruedPTO = 0;
var effectiveRatePerPeriod = 0;
var accrualPeriods = 0;
if (method === 'hourly') {
// Estimate total hours worked based on days employed and standard hours per period
// Assuming a standard 5-day work week for simplicity in estimating total hours
var weeksWorked = employedDays / 7;
var totalHoursWorked = weeksWorked * hoursPerPeriod; // Assuming hoursPerPeriod is like 40 for a week, or 80 for bi-weekly. Let's assume it's standard for the period type e.g. 80 for bi-weekly.
// The calculation logic should be based on policy like "X hours per Y hours worked"
// If baseRate is "hours per period" and method is hourly, it needs clarification.
// Assuming baseRate is "PTO hours per hour worked" for clarity if method is hourly.
// Let's use the example: 4 hours per 80 hours worked => 0.05 PTO per worked hour.
// If baseRate is not provided for hourly, derive from annual rate.
if (isNaN(baseRate) || baseRate <=0) {
// Derive based on annual rate and standard hours in a year
var standardHoursPerYear = 40 * 52; // Assuming 40 hours/week * 52 weeks
effectiveRatePerPeriod = annualRate / standardHoursPerYear; // PTO hours per worked hour
} else {
effectiveRatePerPeriod = baseRate; // Use provided rate per hour worked if available.
}
accruedPTO = totalHoursWorked * effectiveRatePerPeriod;
accrualPeriods = Math.floor(totalHoursWorked / hoursPerPeriod); // Rough estimate of periods worked.
} else { // Period-based accrual (biweekly, semimonthly, monthly)
effectiveRatePerPeriod = baseRate; // Use the explicitly defined rate per period/month.
if (method === 'biweekly') {
accrualPeriods = Math.floor(employedDays / 14); // Approx. periods
} else if (method === 'semimonthly') {
accrualPeriods = Math.floor(employedDays / (365.25 / 24)); // Approx. periods
} else { // monthly
accrualPeriods = Math.floor(employedDays / (365.25 / 12)); // Approx. periods
}
accruedPTO = accrualPeriods * effectiveRatePerPeriod;
}
// Fallback calculation using annual rate if period-based calculation yields odd results or if method is not explicitly period-based
if (method !== 'hourly' && (isNaN(accruedPTO) || accruedPTO annualRate * 1.1)) { // Add a check if the calculated PTO is unreasonable compared to annual rate
accruedPTO = employedYears * annualRate;
// Recalculate effective rate per period based on annual rate for display
if (method === 'biweekly') effectiveRatePerPeriod = annualRate / 26;
else if (method === 'semimonthly') effectiveRatePerPeriod = annualRate / 24;
else if (method === 'monthly') effectiveRatePerPeriod = annualRate / 12;
else effectiveRatePerPeriod = annualRate / 365.25; // if monthly/hourly not specified clearly
}
// Ensure accrued PTO doesn't exceed the annual rate in a single year unless policy allows
var currentYearStartDate = new Date(new Date(calcDateStr).getFullYear(), 0, 1);
var daysInCurrentYear = new Date(new Date(calcDateStr).getFullYear(), 11, 31).getDate() – new Date(new Date(calcDateStr).getFullYear(), 0, 1).getDate() + 1; // Simplified day count for the year
if (calcDateStr.substring(0, 4) === startDateStr.substring(0, 4)) { // If within the first year
var daysInFirstYear = new Date(startDateStr).getFullYear() % 4 === 0 ? 366 : 365; // approximate
var startOfYearToCalcDate = getDaysBetweenDates(new Date(new Date(calcDateStr).getFullYear(), 0, 1).toISOString().split('T')[0], calcDateStr);
var estimatedMaxPTOFirstYear = (startOfYearToCalcDate / daysInFirstYear) * annualRate;
// accruedPTO = Math.min(accruedPTO, estimatedMaxPTOFirstYear); // Cap at prorated annual max
} else if (new Date(calcDateStr).getFullYear() > new Date(startDateStr).getFullYear()) {
// Check if calculation date is past the first year anniversary
var anniversaryDate = new Date(startDateStr);
anniversaryDate.setFullYear(anniversaryDate.getFullYear() + 1);
if (new Date(calcDateStr) = new Date(yearStart)) { // If calculation date is in the current year
var daysIntoYear = getDaysBetweenDates(yearStart, calcDateStr);
if (daysIntoYear >= 0) {
var maxYearlyPTO = (daysIntoYear / daysInYear) * annualRate;
// Don't var calculated PTO exceed the prorated annual maximum for the current year,
// unless the employment started before the start of this year.
var employmentStartedThisYear = startDateStr.startsWith(yearOfCalc.toString());
if (!employmentStartedThisYear) {
accruedPTO = Math.min(accruedPTO, maxYearlyPTO);
} else {
// If started this year, ensure it doesn't exceed the prorated amount from start date
var daysSinceStart = getDaysBetweenDates(startDateStr, calcDateStr);
var maxProratedPTO = (daysSinceStart / daysInYear) * annualRate; // Approximation, assuming full year for rate calculation
accruedPTO = Math.min(accruedPTO, maxProratedPTO);
}
}
}
// Format results
var formattedPTO = accruedPTO.toFixed(2);
var formattedRate = effectiveRatePerPeriod.toFixed(3);
var formattedPeriods = method === 'hourly' ? '-' : accrualPeriods.toString();
// Update results display
document.getElementById('main-result').innerText = formattedPTO + ' PTO Hours';
document.getElementById('intermediate-employmentDuration').innerHTML = 'Employment Duration: ' + employedDays + ' days';
document.getElementById('intermediate-accrualPeriods').innerHTML = 'Accrual Periods: ' + formattedPeriods;
document.getElementById('intermediate-calculatedRate').innerHTML = 'Effective Accrual Rate/Period: ' + formattedRate + ' hours';
// — Update Chart and Table —
updateChartAndTable(annualRate, startDateStr, calcDateStr, method, hoursPerPeriod, baseRate);
}
function updateChartAndTable(annualRate, startDateStr, calcDateStr, method, hoursPerPeriod, baseRate) {
var ptoTableBody = document.getElementById('ptoTableBody');
ptoTableBody.innerHTML = "; // Clear existing rows
var chartLabels = [];
var chartData = [];
var startDate = new Date(startDateStr);
var endDate = new Date(calcDateStr);
var milestones = [];
// Add start date and end date
milestones.push(startDate);
if (startDate.getTime() !== endDate.getTime()) {
milestones.push(endDate);
}
// Add monthly milestones within the range
var currentDate = new Date(startDate);
currentDate.setDate(1); // Start from the first day of the month
currentDate.setMonth(currentDate.getMonth()); // Ensure we start correctly
while (currentDate startDate.getTime() && currentDate.getTime() 0) {
uniqueMilestones.push(milestones[0]);
for (var i = 1; i < milestones.length; i++) {
if (milestones[i].getTime() !== milestones[i-1].getTime()) {
uniqueMilestones.push(milestones[i]);
}
}
}
milestones = uniqueMilestones;
var calculationData = []; // Store data for chart and table generation
for (var i = 0; i < milestones.length; i++) {
var milestoneDate = milestones[i];
var milestoneDateStr = milestoneDate.toISOString().split('T')[0];
var daysEmployed = getDaysBetweenDates(startDateStr, milestoneDateStr);
var employedYears = daysEmployed / 365.25;
var accruedPTO = 0;
var effectiveRatePerPeriod = 0;
var accrualPeriods = 0;
if (method === 'hourly') {
var weeksWorked = daysEmployed / 7;
var totalHoursWorked = weeksWorked * hoursPerPeriod;
if (isNaN(baseRate) || baseRate <=0) {
var standardHoursPerYear = 40 * 52;
effectiveRatePerPeriod = annualRate / standardHoursPerYear;
} else {
effectiveRatePerPeriod = baseRate;
}
accruedPTO = totalHoursWorked * effectiveRatePerPeriod;
accrualPeriods = Math.floor(totalHoursWorked / hoursPerPeriod);
} else {
effectiveRatePerPeriod = baseRate;
if (method === 'biweekly') {
accrualPeriods = Math.floor(daysEmployed / 14);
} else if (method === 'semimonthly') {
accrualPeriods = Math.floor(daysEmployed / (365.25 / 24));
} else { // monthly
accrualPeriods = Math.floor(daysEmployed / (365.25 / 12));
}
accruedPTO = accrualPeriods * effectiveRatePerPeriod;
}
// Fallback calculation
if (method !== 'hourly' && (isNaN(accruedPTO) || accruedPTO annualRate * 1.1)) {
accruedPTO = employedYears * annualRate;
if (method === 'biweekly') effectiveRatePerPeriod = annualRate / 26;
else if (method === 'semimonthly') effectiveRatePerPeriod = annualRate / 24;
else if (method === 'monthly') effectiveRatePerPeriod = annualRate / 12;
else effectiveRatePerPeriod = annualRate / 365.25;
}
// Clamp PTO within year
var yearOfMilestone = milestoneDate.getFullYear();
var yearStart = new Date(yearOfMilestone, 0, 1).toISOString().split('T')[0];
var daysInYear = getDaysBetweenDates(yearStart, new Date(yearOfMilestone, 11, 31).toISOString().split('T')[0]) + 1;
if (milestoneDate >= new Date(yearStart)) {
var daysIntoYear = getDaysBetweenDates(yearStart, milestoneDateStr);
if (daysIntoYear >= 0) {
var maxYearlyPTO = (daysIntoYear / daysInYear) * annualRate;
var employmentStartedThisYear = startDateStr.startsWith(yearOfMilestone.toString());
if (!employmentStartedThisYear) {
accruedPTO = Math.min(accruedPTO, maxYearlyPTO);
} else {
var daysSinceStart = getDaysBetweenDates(startDateStr, milestoneDateStr);
var maxProratedPTO = (daysSinceStart / daysInYear) * annualRate;
accruedPTO = Math.min(accruedPTO, maxProratedPTO);
}
}
}
calculationData.push({
date: milestoneDateStr,
daysEmployed: daysEmployed,
accrualPeriods: method === 'hourly' ? '-' : accrualPeriods,
accruedPTO: accruedPTO.toFixed(2)
});
}
// Populate table
calculationData.forEach(function(data) {
var row = ptoTableBody.insertRow();
row.insertCell().textContent = data.date;
row.insertCell().textContent = data.daysEmployed;
row.insertCell().textContent = data.accrualPeriods;
row.insertCell().textContent = data.accruedPTO;
// Prepare data for chart
chartLabels.push(data.date);
chartData.push(parseFloat(data.accruedPTO));
});
// Update chart
updatePtoChart(chartLabels, chartData);
}
function updatePtoChart(labels, data) {
var ctx = document.getElementById('ptoAccrualChart').getContext('2d');
// Destroy previous chart instance if it exists
if (ptoChart) {
ptoChart.destroy();
}
ptoChart = new Chart(ctx, {
type: 'line',
data: {
labels: labels,
datasets: [{
label: 'Accrued PTO (Hours)',
data: data,
borderColor: 'var(–primary-color)',
backgroundColor: 'rgba(0, 74, 153, 0.1)',
fill: true,
tension: 0.1 // Makes the line slightly curved
}]
},
options: {
responsive: true,
maintainAspectRatio: false, // Allow custom aspect ratio
scales: {
y: {
beginAtZero: true,
title: {
display: true,
text: 'PTO Hours'
}
},
x: {
title: {
display: true,
text: 'Date'
}
}
},
plugins: {
tooltip: {
callbacks: {
label: function(context) {
var label = context.dataset.label || ";
if (label) {
label += ': ';
}
if (context.parsed.y !== null) {
label += context.parsed.y.toFixed(2);
}
return label;
}
}
}
}
}
});
}
function clearChart() {
var ctx = document.getElementById('ptoAccrualChart').getContext('2d');
if (ptoChart) {
ptoChart.destroy();
ptoChart = null;
}
// Clear canvas
ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
}
function copyResults() {
var mainResult = document.getElementById('main-result').innerText;
var employmentDuration = document.getElementById('intermediate-employmentDuration').innerText;
var accrualPeriods = document.getElementById('intermediate-accrualPeriods').innerText;
var calculatedRate = document.getElementById('intermediate-calculatedRate').innerText;
var formula = document.querySelector('.formula-explanation').innerText;
var assumptions = document.querySelector('.key-assumptions').innerText.replace('Key Assumptions:', 'Key Assumptions:\n');
var resultsText = "— Accrued PTO Calculation Results —\n\n";
resultsText += mainResult + "\n";
resultsText += employmentDuration + "\n";
resultsText += accrualPeriods + "\n";
resultsText += calculatedRate + "\n\n";
resultsText += formula + "\n\n";
resultsText += assumptions;
// Use temporary textarea for copying
var textArea = document.createElement("textarea");
textArea.value = resultsText;
textArea.style.position = "fixed"; // Avoid scrolling to bottom of page
textArea.style.opacity = "0";
document.body.appendChild(textArea);
textArea.focus();
textArea.select();
try {
var successful = document.execCommand('copy');
var msg = successful ? 'Results copied successfully!' : 'Failed to copy results.';
// Optional: Show a temporary message to the user
console.log(msg);
} catch (err) {
console.error('Fallback: Oops, unable to copy', err);
}
document.body.removeChild(textArea);
}
function resetCalculator() {
document.getElementById('annualAccrualRate').value = '160'; // Default to 160 hours/year
document.getElementById('employmentStartDate').value = "; // Clear date
document.getElementById('calculationDate').value = "; // Clear date
document.getElementById('accrualMethod').value = 'biweekly'; // Default to bi-weekly
document.getElementById('hoursWorkedPerPeriod').value = '80'; // Default hours for bi-weekly
document.getElementById('accrualBaseRate').value = "; // Clear base rate initially
// Update base rate based on new default method
updateBaseRateBasedOnMethod();
// Clear errors
document.getElementById('annualAccrualRateError').innerText = ";
document.getElementById('employmentStartDateError').innerText = ";
document.getElementById('calculationDateError').innerText = ";
document.getElementById('hoursWorkedPerPeriodError').innerText = ";
document.getElementById('accrualBaseRateError').innerText = ";
// Clear results
document.getElementById('main-result').innerText = '– PTO Hours';
document.getElementById('intermediate-employmentDuration').innerHTML = 'Employment Duration: — days';
document.getElementById('intermediate-accrualPeriods').innerHTML = 'Accrual Periods: –';
document.getElementById('intermediate-calculatedRate').innerHTML = 'Effective Accrual Rate/Period: — hours';
clearChart();
document.getElementById('ptoTableBody').innerHTML = ";
}
// Function to dynamically update base rate helper text and value based on method
function updateBaseRateBasedOnMethod() {
var methodSelect = document.getElementById('accrualMethod');
var baseRateInput = document.getElementById('accrualBaseRate');
var annualRate = parseFloat(document.getElementById('annualAccrualRate').value) || 160;
if (methodSelect.value === 'hourly') {
baseRateInput.placeholder = "e.g., 0.05 (PTO hrs per worked hr)";
baseRateInput.nextElementSibling.innerText = "PTO hours accrued per hour worked (e.g., 4 hours / 80 hours = 0.05). If blank, it's calculated from the annual rate.";
// Attempt to pre-fill if possible based on annual rate
var standardHoursPerYear = 40 * 52;
var calculatedRate = (annualRate / standardHoursPerYear).toFixed(4);
if (!baseRateInput.value) baseRateInput.value = calculatedRate;
} else if (methodSelect.value === 'biweekly') {
baseRateInput.placeholder = "e.g., 3.08";
baseRateInput.nextElementSibling.innerText = "PTO hours accrued per bi-weekly pay period (e.g., 160 hours/year / 26 periods ≈ 6.15 hours).";
var calculatedRate = (annualRate / 26).toFixed(2);
if (!baseRateInput.value) baseRateInput.value = calculatedRate;
} else if (methodSelect.value === 'semimonthly') {
baseRateInput.placeholder = "e.g., 6.67";
baseRateInput.nextElementSibling.innerText = "PTO hours accrued per semi-monthly pay period (e.g., 160 hours/year / 24 periods ≈ 6.67 hours).";
var calculatedRate = (annualRate / 24).toFixed(2);
if (!baseRateInput.value) baseRateInput.value = calculatedRate;
} else if (methodSelect.value === 'monthly') {
baseRateInput.placeholder = "e.g., 13.33";
baseRateInput.nextElementSibling.innerText = "PTO hours accrued per month (e.g., 160 hours/year / 12 periods ≈ 13.33 hours).";
var calculatedRate = (annualRate / 12).toFixed(2);
if (!baseRateInput.value) baseRateInput.value = calculatedRate;
}
// Call calculatePTO to update values if method changes mid-calculation
calculatePTO();
}
// Initial setup for default values and event listeners
document.addEventListener('DOMContentLoaded', function() {
// Set default values
resetCalculator();
// Add event listener for method change to update helper text and base rate suggestion
document.getElementById('accrualMethod').addEventListener('change', updateBaseRateBasedOnMethod);
// Set initial value for base rate input based on default method
updateBaseRateBasedOnMethod();
// Load Chart.js if it's not already loaded. Assuming it's available globally.
// If using a module system or local file, you'd include it differently.
if (typeof Chart === 'undefined') {
console.error("Chart.js library not found. Please include Chart.js in your project.");
// Optionally, you could dynamically load it here if needed.
} else {
// Initialize empty chart on load
updatePtoChart([], []);
}
});
// FAQ Toggle Function
function toggleFaq(element) {
var faqItem = element.closest('.faq-item');
faqItem.classList.toggle('open');
}