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Payroll systems and timesheets often need time expressed as a decimal (like 7.5 hours) rather than the clock format (like 7 hours 30 minutes) most people think in.
This converter works in either direction: hours/minutes/seconds to decimal hours, or decimal hours back to clock format.
How it works
Choose a conversion direction, then enter either the hours/minutes/seconds or the decimal hours value. Converting to decimal divides the minutes by 60 and seconds by 3600, then adds them to the whole hours; converting back separates the whole hours from the fractional part.
- Enter conversion direction.
- Enter hours (for hours→decimal).
- Enter minutes (for hours→decimal).
- Enter seconds (optional, for hours→decimal).
- Enter decimal hours (for decimal→hours).
- Click Calculate to see your results.
Examples
7 hours 30 minutes → decimal
7 hours and 30 minutes converts to exactly 7.5 decimal hours.
Who should use it
- Converting timesheet entries to decimal hours for payroll processing.
- Converting a decimal hours figure back to a readable hours-and-minutes format.
Industry applications
- Payroll and HR administration
- Time tracking and project billing
Advantages
- Converts in both directions from a single tool.
- Includes optional seconds precision for the hours-to-decimal direction.
Limitations
- Not itself a timesheet or timecard system — see the Time Card Calculator for that.
Common mistakes to avoid
- Treating decimal hours like clock minutes — 7.5 hours is 7 hours 30 minutes, not 7 hours 50 minutes.
- Forgetting to select the correct conversion direction before entering values.
Best practices
- Double-check which direction you've selected, since the input fields used depend on it.
Tips
- Common minute-to-decimal conversions worth memorizing: 15 min = 0.25, 30 min = 0.5, 45 min = 0.75.