Time to Decimal Calculator (Hours and Minutes to Decimal)
Payroll and billing systems use decimal hours, but people track time in hours and minutes. To convert, divide the minutes by 60 and add them to the hours: 7 hours 45 minutes is 7.75 decimal hours.
- Decimal hours
- 7.75
- Total minutes
- 465
How it works
Decimal Hours = Hours + (Minutes / 60)
Enter hours and minutes. The calculator returns decimal hours (for payroll and invoicing) and total minutes (for job costing).
The most common payroll error here is treating minutes as decimals directly, entering 7 hours 45 minutes as 7.45 instead of 7.75. Over a pay period that shortchanges real hours worked.
Worked example
A timesheet shows 38 hours 20 minutes for the week. 20 / 60 = 0.33, so enter 38.33 decimal hours into payroll.
Minutes to decimal hours conversion chart
| Minutes | Decimal |
|---|---|
| 5 | 0.08 |
| 10 | 0.17 |
| 15 | 0.25 |
| 20 | 0.33 |
| 25 | 0.42 |
| 30 | 0.50 |
| 35 | 0.58 |
| 40 | 0.67 |
| 45 | 0.75 |
| 50 | 0.83 |
| 55 | 0.92 |
| 60 | 1.00 |
Frequently asked questions
- What is 7 hours 45 minutes in decimal?
- 7.75 hours. Divide the 45 minutes by 60 to get 0.75, then add the 7 hours.
- Why do payroll systems use decimal hours?
- Pay is hours times rate, and multiplication needs a decimal. 7.75 hours x $20 is a one-step calculation; 7:45 is not.
- How do I convert decimal hours back to minutes?
- Multiply the decimal part by 60. The 0.75 in 7.75 hours is 45 minutes.
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