Note: This is an estimate. Actual pay may vary based on tax deductions, overtime policies, and employer specific rules.
Understanding Your Work Hours and Pay Calculation
This calculator is designed to provide a clear and accurate estimate of your earnings based on the hours you've worked and your hourly wage. It takes into account your start and end times, as well as any unpaid break durations, to determine your total payable hours.
How it Works:
The core of the calculation involves determining the total duration you were at work and then subtracting any unpaid break time to arrive at your billable hours. This figure is then multiplied by your hourly rate to give you your gross earnings for that period.
The Formula:
Total Work Duration = End Time – Start Time
Total Billable Hours = Total Work Duration – Break Duration
Gross Earnings = Total Billable Hours × Hourly Rate
Breakdown:
Hourly Rate: This is the amount you are paid for each hour of work. Ensure this is entered accurately, including any cents.
Start Time & End Time: These define the period you were on duty. The calculator converts these times into a total duration.
Break Duration (in minutes): This is time spent on breaks for which you are not compensated. It's crucial to subtract this to get accurate billable hours. The input is in minutes for ease of use.
Why Use This Calculator?
Accuracy: Avoid manual errors in calculating hours and pay, especially after long shifts or complex schedules.
Estimation: Get a quick estimate of your gross pay before your official payslip arrives.
Transparency: Understand how your pay is calculated, empowering you to verify your earnings.
Planning: Use it to budget and plan your finances effectively.
Remember that this calculator provides an estimate of your gross pay. Your net pay (the amount you actually receive) will be lower after taxes, insurance, and other potential deductions are applied by your employer.
function calculatePay() {
var hourlyRate = parseFloat(document.getElementById("hourlyRate").value);
var startTimeStr = document.getElementById("startTime").value;
var endTimeStr = document.getElementById("endTime").value;
var breakDurationMinutes = parseFloat(document.getElementById("breakDuration").value);
var resultDiv = document.getElementById("calculatedPay");
resultDiv.innerText = "–"; // Reset previous result
// Input validation
if (isNaN(hourlyRate) || hourlyRate <= 0) {
alert("Please enter a valid hourly rate (a positive number).");
return;
}
if (startTimeStr === "" || endTimeStr === "") {
alert("Please select both start and end times.");
return;
}
if (isNaN(breakDurationMinutes) || breakDurationMinutes < 0) {
alert("Please enter a valid break duration (a non-negative number).");
return;
}
// Parse time strings
var startTimeParts = startTimeStr.split(":");
var endTimeParts = endTimeStr.split(":");
var startHour = parseInt(startTimeParts[0], 10);
var startMinute = parseInt(startTimeParts[1], 10);
var endHour = parseInt(endTimeParts[0], 10);
var endMinute = parseInt(endTimeParts[1], 10);
// Convert times to minutes from midnight for easier calculation
var startTotalMinutes = startHour * 60 + startMinute;
var endTotalMinutes = endHour * 60 + endMinute;
// Handle overnight shifts (if end time is earlier than start time)
if (endTotalMinutes totalWorkMinutes) {
alert("Break duration cannot be longer than the total time worked.");
return;
}
var billableMinutes = totalWorkMinutes – breakDurationMinutes;
var billableHours = billableMinutes / 60;
// Calculate gross earnings
var grossEarnings = billableHours * hourlyRate;
// Display the result, formatted to two decimal places for currency
resultDiv.innerText = "$" + grossEarnings.toFixed(2);
}