Hours to Decimal Calculator
Convert hours and minutes worked into decimal hours — the format payroll systems expect. 8 hours 15 minutes becomes 8.25. Enter your values below.
= ? decimal hours
= ? : ?
Common work hours in decimal
Standard shifts: 8:00 → 8.0, 8:15 → 8.25, 8:30 → 8.5, 8:45 → 8.75, 7:30 → 7.5, 9:30 → 9.5. A 40-hour week with a 30-minute daily unpaid lunch is 40 − 2.5 = 37.5 paid decimal hours.
Frequently asked questions
How do I convert 8 hours 15 minutes to decimal?
15 ÷ 60 = 0.25, so 8:15 = 8.25 decimal hours.
What is 40 hours a week in decimals?
40 hours is already decimal — 40.0. Only the minute portion needs conversion. A week of five 8:30 shifts (with lunches deducted) totals 40 − 2.5 = 37.5.