DecimalTime

Time to Decimal Calculator

Turn hours and minutes into decimal hours the way payroll and billing systems expect. Type a time like 8:45 and get 8.75 instantly.

Time (hours : minutes)

:

Decimal hours

7:45 = 7.75 decimal hours = 465 minutes

Convert time to decimal without the mental math

Anyone who has ever closed a timesheet on a Friday knows the routine: the system wants 8.5, but you wrote 8:30. This time to decimal calculator converts clock time into decimal hours the moment you type, with no buttons to press and no formulas to remember. It handles any value from a few minutes to hundreds of hours, and it also works in reverse when you need to read a decimal paycheck figure back as real time.

The conversion divides minutes by 60, because one minute is one sixtieth of an hour. That is why the decimal equivalents of quarter hours are so tidy — .25, .50 and .75 — and why everything else, like 7 minutes (0.1167) or 22 minutes (0.3667), is awkward enough that a calculator earns its keep.

Built for timesheet day and invoicing day

Time tracking software such as TSheets, When I Work and Homebase all report in decimal hours, and most accounting tools that import that data expect the same format. If you keep your own hours in a notebook or spreadsheet using clock notation, this page is the fastest bridge between your records and theirs: convert, copy, paste, done.

Freelancers and consultants use it the same way when an invoice line item needs to say 6.25 hours rather than 6:15. Clients rarely dispute a decimal they can multiply by the rate in one step, and the number in the converter matches what every major payroll platform would compute for the same input.

Accuracy notes worth knowing

The calculator keeps four decimal places, which is finer than any payroll rounding rule — most systems round to the nearest quarter hour or the nearest tenth. When your employer rounds, a 7:52 punch may still be paid as 7.75; the exact decimal here is 7.8667, so use this page for the true value and let your payroll policy explain the difference.

Everything is computed in your browser and nothing is stored. For a whole week of entries rather than one, switch to the time card calculator, which totals seven days and multiplies by an hourly rate. For looking up single common values, the conversion chart page lists every 15-minute increment up to 12 hours.

Frequently Asked Questions

What does 8:30 become in decimal hours?

8:30 becomes 8.5 decimal hours. Thirty minutes is half an hour, so you add 0.5 to the 8 whole hours. Similarly 8:15 is 8.25 and 8:45 is 8.75.

How do payroll systems convert time to decimal?

They divide the minutes portion of each shift by 60 and add it to the whole hours, exactly like this calculator. Many then round the result to the nearest quarter hour or tenth per company policy, so a payslip figure can differ slightly from the exact decimal shown here.

Can this calculator handle minutes over 59?

The minutes field accepts 0–59 in clock notation. If you have a duration like 95 minutes, use the minutes to decimal hours page instead, which converts pure minutes into decimal hours directly (95 minutes = 1.5833 hours).