1.5x (Time and a Half)
2.0x (Double Time)
1.0x (Straight Time)
Regular Pay:$0.00
Overtime Hourly Rate:$0.00
Overtime Pay:$0.00
Total Gross Pay:$0.00
How to Calculate Overtime Pay Manually
Calculating overtime is a critical skill for ensuring you are being paid fairly according to labor laws like the Fair Labor Standards Act (FLSA). Most employees in the United States are entitled to overtime pay for any hours worked beyond 40 in a single workweek.
The standard formula for overtime calculation involves three primary steps:
Calculate Regular Pay: Multiply your regular hourly rate by the number of hours worked up to 40.
Calculate Overtime Rate: Multiply your base hourly rate by the overtime multiplier (usually 1.5).
Calculate Overtime Total: Multiply the overtime rate by the number of overtime hours.
Sum the Totals: Add your regular pay and overtime pay together.
Example Calculation:
If you earn $20.00 per hour and work 45 hours in a week:
• Regular Pay: 40 hours × $20.00 = $800.00
• OT Rate: $20.00 × 1.5 = $30.00/hr
• OT Pay: 5 hours × $30.00 = $150.00
• Total Gross Pay: $950.00
Understanding Overtime Multipliers
While "Time and a Half" (1.5x) is the most common legal requirement, some scenarios may differ:
Double Time (2.0x): Often used for holiday work, Sundays, or when working extreme shifts (e.g., over 12 hours in a single day in California).
Straight Time (1.0x): Occasionally applied to salaried non-exempt employees or in specific contract agreements, though standard OT laws usually override this for hourly workers.
Common Overtime Compliance Rules
It is important to remember that overtime is usually calculated on a weekly basis, not daily. For example, if you work 12 hours on Monday but only 30 hours total for the week, you may not be eligible for overtime pay unless state-specific laws (like those in California) mandate daily overtime pay.
function calculateOvertimePay() {
var hourlyRate = parseFloat(document.getElementById('hourlyRate').value);
var regHours = parseFloat(document.getElementById('regHours').value);
var otHours = parseFloat(document.getElementById('otHours').value);
var multiplier = parseFloat(document.getElementById('multiplier').value);
if (isNaN(hourlyRate) || hourlyRate <= 0) {
alert("Please enter a valid hourly rate.");
return;
}
if (isNaN(regHours) || regHours < 0) {
regHours = 0;
}
if (isNaN(otHours) || otHours < 0) {
otHours = 0;
}
// Calculations
var regularPayTotal = hourlyRate * regHours;
var overtimeHourlyRate = hourlyRate * multiplier;
var overtimePayTotal = overtimeHourlyRate * otHours;
var totalGrossPay = regularPayTotal + overtimePayTotal;
// Formatting for display
document.getElementById('resRegPay').innerText = '$' + regularPayTotal.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resOtRate').innerText = '$' + overtimeHourlyRate.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}) + ' per hour';
document.getElementById('resOtPay').innerText = '$' + overtimePayTotal.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById('resTotalPay').innerText = '$' + totalGrossPay.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
// Show results
document.getElementById('ot-results').style.display = 'block';
}