function calculateHourlyRate() {
// 1. Get input values by ID
var salaryInput = document.getElementById('annualSalary').value;
var hoursInput = document.getElementById('hoursPerWeek').value;
var weeksInput = document.getElementById('weeksPerYear').value;
// 2. DOM elements for results
var resultsSection = document.getElementById('resultsSection');
var errorMsg = document.getElementById('errorMessage');
var hourlyDisplay = document.getElementById('hourlyResult');
var weeklyDisplay = document.getElementById('weeklyResult');
var monthlyDisplay = document.getElementById('monthlyResult');
var dailyDisplay = document.getElementById('dailyResult');
var totalHoursDisplay = document.getElementById('totalHoursResult');
// 3. Parse values
var salary = parseFloat(salaryInput);
var hoursPerWeek = parseFloat(hoursInput);
var weeksPerYear = parseFloat(weeksInput);
// 4. Validation logic
if (isNaN(salary) || isNaN(hoursPerWeek) || isNaN(weeksPerYear) || salary <= 0 || hoursPerWeek <= 0 || weeksPerYear <= 0) {
errorMsg.style.display = 'block';
resultsSection.style.display = 'none';
return;
} else {
errorMsg.style.display = 'none';
resultsSection.style.display = 'block';
}
// 5. Calculation Logic
// Total working hours in a year
var totalAnnualHours = hoursPerWeek * weeksPerYear;
// Hourly Rate
var hourlyRate = salary / totalAnnualHours;
// Weekly Pay (Salary / Weeks Worked)
// Note: Standard calculation usually assumes salary is paid over 52 weeks regardless of working weeks,
// but for strict hourly conversion based on working time:
var weeklyPay = hourlyRate * hoursPerWeek;
// Monthly Pay (Annual / 12)
var monthlyPay = salary / 12;
// Daily Pay (Hourly * 8 hours standard day, or adjust based on avg hours)
var dailyPay = hourlyRate * (hoursPerWeek / 5); // Assuming 5 day work week
// 6. Formatting and Display
// Currency formatter
var formatter = new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
});
hourlyDisplay.innerHTML = formatter.format(hourlyRate);
weeklyDisplay.innerHTML = formatter.format(weeklyPay);
monthlyDisplay.innerHTML = formatter.format(monthlyPay);
dailyDisplay.innerHTML = formatter.format(dailyPay);
totalHoursDisplay.innerHTML = totalAnnualHours.toLocaleString() + " hrs";
}
How to Calculate a Salaried Employee's Hourly Rate
Understanding the conversion between an annual salary and an hourly wage is crucial for evaluating job offers, calculating overtime value, or comparing freelance rates against full-time employment. While a salary is a fixed amount paid over a year, your effective hourly rate depends heavily on how many hours you actually work.
The Standard Calculation Formula
The most common method used by HR departments and payroll software assumes a standard full-time schedule. This is typically based on a 40-hour work week and 52 weeks in a year.
Hourly Rate = Annual Salary ÷ (Hours per Week × Weeks per Year)
For a standard employee working 40 hours a week, 52 weeks a year:
Total Annual Hours: 40 × 52 = 2,080 hours
Calculation: Annual Salary ÷ 2,080
Why the 2,080 Hour Rule Matters
The number 2,080 is the standard constant used in finance to convert salary to hourly. If you earn $50,000 a year, the quick math is $50,000 divided by 2,080, which equals approximately $24.04 per hour.
Adjusting for Real-World Scenarios
The standard formula assumes you work every single week of the year. However, if you are a contractor or trying to determine your effective hourly rate (how much you earn for time actually spent working), you should adjust the inputs in the calculator above:
Unpaid Time Off: If you take 2 weeks of unpaid vacation, enter 50 in the "Weeks Worked Per Year" field. This decreases your total hours worked and effectively increases your hourly value relative to the salary.
Overtime: If you are salaried but consistently work 50 hours a week without extra pay, your effective hourly rate drops. Enter 50 in the "Hours Worked Per Week" field to see how much your hourly wage is diluted by the extra hours.
Common Salary to Hourly Conversions (Standard 2,080 Hours)
Annual Salary
Hourly Rate
Weekly Pay
$30,000
$14.42
$576.92
$40,000
$19.23
$769.23
$50,000
$24.04
$961.54
$75,000
$36.06
$1,442.31
$100,000
$48.08
$1,923.08
Does Salary Include Paid Time Off (PTO)?
Yes, for most salaried employees, Paid Time Off is included in the gross annual salary. When calculating your rate for a loan application or a new job, stick to the standard 52 weeks. However, if you are a freelancer calculating a retainer fee, remember that freelancers do not get paid for holidays or sick days, so you must bill a higher hourly rate to match a salaried employee's net income.