Enter a duration
Set the hours and minutes. Values such as 90 minutes are accepted.
Free duration tool
Hours and Minutes Calculator
Add or subtract multiple elapsed time durations. Get the answer as hours and minutes, total minutes, and decimal hours.
Build your calculation
Tap a shortcut or adjust any row. You can also type a value such as 90 minutes.
Total duration
Total minutes
90
Decimal hours
1.50
Minutes over 59 are normalized automatically. Results may be negative.
How it works
Add and subtract elapsed time
Each row is one duration. Choose whether to add or subtract it, then read the combined result in the format you need.
Choose plus or minus
Keep Add for a positive duration, or switch a row to Subtract.
Use any result format
Copy H:MM, total minutes, and decimal hours together in one tap.
Examples
Common duration calculations
265 total minutes, or 4.42 decimal hours.
435 total minutes, or 7.25 decimal hours.
Three positive durations can be combined in one calculation.
A larger subtraction produces a negative result.
The formula
Convert everything to minutes first
Multiply each hours value by 60, add its minutes, and apply the plus or minus sign. Divide the final total by 60 for decimal hours; divide with a remainder for H:MM.
FAQ
Hours and minutes questions
What is a time duration?
A duration is an amount of elapsed time, such as 2 hours and 30 minutes. It is not a specific time of day.
Can I add more than two durations?
Yes. Add as many rows as you need, and choose whether each duration should be added or subtracted.
Can the minutes value be greater than 59?
Yes. For example, entering 90 minutes is automatically treated as 1 hour and 30 minutes.
How are decimal hours calculated?
The calculator divides the total number of minutes by 60. For example, 7 hours and 15 minutes equals 7.25 decimal hours.
Does this calculator handle dates or time zones?
No. It works only with elapsed durations. Use the main Time Calculator when you need to add or subtract time from a date or clock time.