Decimal Hours Converter
Convert hours and minutes into decimal hours, or decimal hours back into hours and minutes, for payroll and timesheet purposes.
Your results
Calculation breakdown
- To decimal
- hours + minutes ÷ 60
- To hours/minutes
- whole part = hours, fractional part × 60 = minutes
Worked example
1 hour 30 minutes converts to 1.5 decimal hours for timesheet entry.
Assumptions
- Rounds minutes to the nearest whole minute when converting from decimal.
How this calculator works
This calculator converts a time given in hours and minutes into decimal hours (for example 1 hour 30 minutes becomes 1.5 hours), or converts decimal hours back into hours and minutes. It's commonly needed when entering timesheets that require decimal hour values for payroll.
Frequently asked questions
Why do payroll systems use decimal hours?
Decimal hours make it easier to multiply time worked by an hourly pay rate without separately handling minutes.
How do I convert 45 minutes to decimal?
45 minutes equals 0.75 of an hour, since 45 divided by 60 is 0.75.
Can I convert decimal hours back to minutes?
Yes, switch the conversion direction to see the equivalent hours and minutes for a decimal value.
Editorial review and responsibility
Reviewed by the CalcAussie editorial team on 21 September 2026. Review scope: Method, Australian terminology, material assumptions, source links and user-facing limitations.
Calculator results remain estimates based on the figures entered. Check material decisions against current official information and report a suspected error so it can be reproduced and corrected.