How to use
- Type hours and minutes with a colon, such as 8:30 or 40:15. Typing a decimal like 8.5 converts the other way automatically.
- Choose payroll rounding if your system pays in quarter or tenth hours; the exact value stays visible.
- Paste a whole column of times to convert them at once, or scroll the 1 to 60 minute chart.
Worked example: 7:45 and 38:20
7 hours 45 minutes is 7.75 decimal hours, because 45 ÷ 60 = 0.75. At $20.00 an hour that is $155.00.
38 hours 20 minutes is 38.33 hours (20 ÷ 60 = 0.333…, shown to two decimals). Rounded to the nearest quarter hour it becomes 38.25, and to the nearest tenth 38.3.
Frequently asked questions
What is the formula?
Decimal hours = hours + minutes ÷ 60. The site works in whole minutes and rounds once, half-up, when displaying.
Why does payroll use decimal hours?
Pay is rate × hours, and multiplication needs a single number. 8:30 must become 8.5 before it can be multiplied by a rate.
What does nearest 0.25 do?
It rounds to quarter hours: 8.13 becomes 8.25 and 8.12 becomes 8.00. Hover the result to see the unrounded value.
Can I convert many times at once?
Yes. Paste one time per line into the column box; each line shows both forms.
How do I convert the other way?
Type a decimal without a colon, such as 8.75, and the result shows 8:45. The Decimal to Hours page opens in that mode.
What is the minutes-to-decimal chart?
A table of every minute from 1 to 60 with its decimal value, for example 15 minutes = 0.25, 20 = 0.33, 45 = 0.75. Use the filter box to jump to a value and download it as CSV.
Is 0.33 exact for 20 minutes?
No, 20 ÷ 60 is 0.3333… repeating. Two decimals is the payroll convention; the chart and the hover text show four decimals.