Practical AtlasIndependent referenceFree online tool
Time calculator
Add hours and minutes across up to four entries and convert the total into decimal hours, which is the form timesheets and invoices usually ask for.
Add up hours and minutes.
Total up to four time entries — shifts, tasks, or laps — into one figure with payroll-ready decimal hours.
COMMON WAYS TO ASK
- Add hours and minutes together
- Total my timesheet hours
- Convert minutes to decimal hours
QUICK ANSWER
What this calculator tells you.
Enter up to four hour-and-minute pairs and get one total plus its decimal form. Everything converts to minutes internally, so 50-minute and 90-minute entries add correctly instead of like decimals.
Three tasks in one afternoon
INPUT2 h 45 min + 1 h 30 min + 0 h 50 min
RESULT5 h 5 min · 5.08 decimal hours
Questions people ask next.
Why is 5 hours 5 minutes not 5.05 hours?
Minutes are sixtieths of an hour, not hundredths. Five minutes is 5 ÷ 60 = 0.083 of an hour, so the decimal total is 5.08.
Can I enter more than 59 minutes?
Yes. An entry like 0 h 90 min is valid and carries over automatically, which is useful when notes record long tasks in minutes only.