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Time to Decimal Calculator
Convert hours and minutes to decimal hours for timesheets and payroll, and decimal hours back to hours and minutes.
Quick answer
To convert time to decimal, divide the minutes by 60 and add them to the hours: 7 hours 45 minutes is 7 + 45 ÷ 60 = 7.75 hours. For seconds, divide by 3,600. To go back, multiply the decimal part by 60: 8.6 hours is 8 hours and 0.6 × 60 = 36 minutes.
That is 465 minutes in total.
Step by step
How to use the Time to Decimal Calculator
01
Enter hours, minutes and seconds.
02
See the time as decimal hours.
03
Or enter decimal hours to get hours and minutes.
Formula
Decimal hours = Hours + Minutes ÷ 60 + Seconds ÷ 3600Worked examples
Minutes to decimal hours
| Minutes | Decimal | Minutes | Decimal |
|---|---|---|---|
| 5 | 0.083 | 35 | 0.583 |
| 10 | 0.167 | 40 | 0.667 |
| 15 | 0.25 | 45 | 0.75 |
| 20 | 0.333 | 50 | 0.833 |
| 25 | 0.417 | 55 | 0.917 |
| 30 | 0.5 | 60 | 1 |
Timesheet examples
| Hours worked | Decimal hours | Pay at $18/hour |
|---|---|---|
| 7 h 45 min | 7.75 | $139.50 |
| 8 h 20 min | 8.33 | $150.00 |
| 6 h 50 min | 6.83 | $123.00 |
| 9 h 15 min | 9.25 | $166.50 |
| 37 h 30 min | 37.5 | $675.00 |
Good to know
Why payroll uses decimal hours
Pay is hourly rate × hours, and multiplying needs a single number. 7 hours 45 minutes at $18 an hour is 7.75 × 18 = $139.50. Using 7.45 instead would underpay by $5.40, a common timesheet mistake.
Rounding rules
Some employers round to the nearest quarter hour (0.25) or tenth of an hour (6 minutes). In the US, rounding is allowed if it evens out over time and does not consistently favour the employer, so check your company’s policy.
FAQ
Frequently asked questions
What is 30 minutes as a decimal?
0.5 hours.
How do I convert 1.25 hours to minutes?
Multiply by 60: 1.25 × 60 = 75 minutes, or 1 hour 15 minutes.
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