Decimal Time Converter
Convert hours and minutes to decimal hours (7:45 = 7.75) and decimal hours back to time, with rounding for payroll.
π Runs entirely in your browser β nothing is uploadedWhy decimal hours matter
Payroll, invoicing and billing systems almost always want time as a decimal number of hours, while people think in hours and minutes. A shift of 7 hours 45 minutes is entered as 7.75, not 7.45, because each minute is one sixtieth of an hour. Mixing the two formats is a frequent cause of pay errors, so a reliable converter is worth keeping handy.
Enter hours, minutes and seconds in the first card to get the decimal value. The tool shows the full-precision number and the two-decimal figure most systems accept.
Converting back to hours and minutes
In the second card enter a decimal such as 7.75 and the tool returns 7:45. You can round the result to the nearest minute, five minutes, six minutes (which equals 0.1 of an hour), or fifteen minutes, matching typical timesheet policies such as quarter-hour rounding. Exact mode keeps seconds so nothing is lost.
The quick reference chart lists minutes from 0 to 59 in five-minute steps next to their decimal equivalents. For example 15 minutes is 0.25, 30 minutes is 0.50 and 45 minutes is 0.75.
Tips for payroll
Always follow your employer's rounding policy, and keep the unrounded figure in case of disputes. Multiply decimal hours by the hourly rate to get pay: 7.75 hours at 20 per hour is 155. Everything is computed in your browser; none of your figures leaves your device.
A handy mental shortcut is that every 6 minutes equals 0.1 hour, so 36 minutes is 0.6 hours and 54 minutes is 0.9 hours. Keep the chart open while you fill in a timesheet and you will rarely need the calculator for common values. When in doubt, convert minutes to decimals by dividing by 60, then add the whole hours: 7 plus 45 divided by 60 equals 7.75 hours exactly.
How to use
- Enter hours and minutesFill in the first card to see the decimal hours.
- Or enter decimal hoursUse the second card to turn 7.75 back into 7:45.
- Round if neededChoose 1, 5, 6 or 15 minute rounding to match your timesheet policy.