Enter shift times and breaks to calculate total weekly work hours.
Day
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Timesheet Summary
00:00
0.00
How to Calculate Work Hours Effectively
Managing payroll starts with accurately tracking employee hours. This calculator simplifies the process by converting shift start and end times into total payable hours, minus any unpaid breaks. Whether you are an employer processing payroll or an employee verifying your paycheck, understanding how time is calculated is essential.
Converting Minutes to Decimal Hours
Most payroll systems require time to be entered in decimal format rather than hours and minutes. To convert minutes to decimals manually, you divide the number of minutes by 60. For example:
15 minutes = 0.25 hours (15/60)
30 minutes = 0.50 hours (30/60)
45 minutes = 0.75 hours (45/60)
Our calculator automatically performs this conversion, providing both the standard time format and the decimal format for easy entry into accounting software.
Example Calculation
Suppose an employee works from 8:30 AM to 5:15 PM with a 45-minute unpaid lunch break.
Step 1: Calculate total span of time. From 8:30 to 17:15 is 8 hours and 45 minutes.
Step 3: Convert to decimal. In this case, it stays 8.00 hours.
The Importance of Precision
Inconsistent time tracking can lead to legal complications or financial discrepancies. Using a dedicated tool ensures that rounding errors are minimized and that labor law requirements—such as overtime thresholds—are easier to identify. This tool is designed to handle daily entries and provide a weekly sum, perfect for standard weekly pay cycles.
function calculateTotalHours() {
var days = ['m', 't', 'w', 'th', 'f', 's', 'su'];
var totalMinutes = 0;
for (var i = 0; i < days.length; i++) {
var startVal = document.getElementById(days[i] + '_start').value;
var endVal = document.getElementById(days[i] + '_end').value;
var breakVal = parseFloat(document.getElementById(days[i] + '_break').value) || 0;
if (startVal && endVal) {
var startParts = startVal.split(':');
var endParts = endVal.split(':');
var startMin = (parseInt(startParts[0]) * 60) + parseInt(startParts[1]);
var endMin = (parseInt(endParts[0]) * 60) + parseInt(endParts[1]);
// Handle overnight shifts
if (endMin 0) {
totalMinutes += dailyNet;
}
}
}
var resultBox = document.getElementById('eh_result');
var formattedBox = document.getElementById('total_formatted');
var decimalBox = document.getElementById('total_decimal');
if (totalMinutes > 0) {
var finalHours = Math.floor(totalMinutes / 60);
var finalMins = totalMinutes % 60;
var decimalHours = (totalMinutes / 60).toFixed(2);
formattedBox.innerText = finalHours + "h " + (finalMins < 10 ? '0' + finalMins : finalMins) + "m";
decimalBox.innerText = decimalHours;
resultBox.style.display = 'block';
} else {
formattedBox.innerText = "00:00";
decimalBox.innerText = "0.00";
resultBox.style.display = 'block';
}
}