How it works
Decimal hours = hours + minutes ÷ 60. Hours and minutes = the whole number of hours, plus the decimal part × 60 minutes. Payroll systems usually round decimal hours to 2 places.
Worked examples
- 7 hours 45 minutes = 7 + 45 ÷ 60 = 7.75 hours.
- 8.2 hours = 8 hours + 0.2 × 60 = 8 hours 12 minutes.
- 20 minutes = 20 ÷ 60 = 0.333… hours, shown as 0.33 when rounded to 2 places.
Common questions
What is 15 minutes in decimal hours?
15 ÷ 60 = 0.25 hours. 30 minutes is 0.5 hours and 45 minutes is 0.75 hours.
Why does payroll use decimal hours?
Pay is hours × rate, and multiplying is easier with decimals: 7.75 hours × $20 = $155.00, while 7:45 × $20 cannot be multiplied directly.
Is 7.30 hours the same as 7 hours 30 minutes?
No. 7.30 decimal hours is 7 hours 18 minutes (0.30 × 60 = 18). 7 hours 30 minutes is 7.5 decimal hours.