Hours Calculator
Add any number of durations such as 2h 30m and 1h 45m and see the total, with the decimal-hours equivalent for timesheets and payroll.
Result
- Total
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- Decimal Hours
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Calculations happen in your browser. The times you enter are never uploaded and are not sent to analytics.
Adding Hours and Minutes
Enter each duration as “2h 30m”, “2:30” or “90m” — the calculator understands all three. Each value is converted to seconds, summed, and only then formatted back, so the total is exact: 2h 30m + 1h 45m = 4h 15m.
Decimal Hours for Payroll
Alongside the hours-and-minutes total you get the decimal equivalent: 4h 15m is 4.25 decimal hours. Decimal hours divide minutes by 60, so 7:30 is 7.50 — not 7.30.
Frequently Asked Questions
How many durations can I add?
As many as you need — use “Add duration” for each extra line.
What formats are accepted?
“2h 30m”, “2:30”, “90m”, “1h 15m 10s” and similar. Plain numbers are treated as hours.
Can I subtract instead?
Yes — the subtract time calculator subtracts one duration from another and handles negative results.