Hours ↔ decimal
Decimal Hours Calculator
Convert hours and minutes to decimal hours, or decimal hours back to hours and minutes.
Decimal value1.590 total minutes
How this calculator works
Decimal hours express minutes as a fraction of 60. For example, 30 minutes is 0.5 hours and 15 minutes is 0.25 hours.
The reverse conversion multiplies the decimal fraction by 60 and rounds to the nearest minute.
The tool is arithmetic only. Where legal, payroll, holiday, timezone or jurisdiction-specific rules matter, the page states what is and is not included.
Frequently asked questions
Is 1 hour 30 minutes equal to 1.30 hours?
No. It is 1.5 decimal hours because 30 minutes is half of an hour.
Why do payroll systems use decimal hours?
Decimal values are easier to multiply by rates and total in spreadsheets and payroll systems.