Decimal Hours Calculator
Enter daily punch times for the week and get decimal hour totals plus gross pay.
| Day | Clock In | Clock Out | Hours |
|---|---|---|---|
| Mon | — | ||
| Tue | — | ||
| Wed | — | ||
| Thu | — | ||
| Fri | — | ||
| Sat | — | ||
| Sun | — | ||
| Weekly Total | 0.00 | ||
Why Payroll Uses Decimal Hours
Payroll systems multiply hours by a rate to calculate wages. Decimals make this exact arithmetic simple: 7 hours 45 minutes as a decimal (7.75) multiplied by $20/hr equals $155.00 exactly. Using hours and minutes separately would require converting to avoid rounding errors.
How to Convert
Decimal Hours = Whole Hours + (Minutes ÷ 60)
Examples: 7h 30min = 7 + 30/60 = 7.50 | 8h 15min = 8 + 15/60 = 8.25 | 6h 45min = 6 + 45/60 = 6.75
Worked Example
A typical work week at $19/hr:
| Day | Hours Worked | Decimal |
|---|---|---|
| Monday | 8h 15min | 8.25 |
| Tuesday | 7h 45min | 7.75 |
| Wednesday | 8h 00min | 8.00 |
| Thursday | 8h 30min | 8.50 |
| Friday | 7h 30min | 7.50 |
| Weekly Total | 40.00 | |
40.00 hours × $19/hr = $760.00 gross pay
Quick Reference
For the full 1–59 minute chart, see the Decimal Hours Chart.
Frequently Asked Questions
Does my employer have to use decimal hours?
Not legally required, but decimal hours are standard in most payroll software. Many employers record time in hours:minutes but convert to decimals before calculating pay.
How do I convert 90 minutes to decimal?
90 ÷ 60 = 1.50 hours. For times over an hour: 1 hour 30 minutes = 1.50 hours.
What's the difference between this and the Time Card Calculator?
This calculator shows decimal hour totals per day. The Time Card Calculator also handles lunch and break deductions separately.