Add, subtract, and convert hours with this free hours calculator. Enter hours, minutes, and seconds to calculate decimal hours, total minutes, total seconds, and a standard time result.
Starting time:
Enter the first amount of time using hours, minutes, and seconds.
Second time amount:
Enter the additional time amount if you want to add or subtract hours.
Operation:
Choose add, subtract, or convert. Convert ignores the second time amount and converts the starting time only.
Final result:
The calculator converts the values to seconds first, then displays the result as decimal hours, total minutes, total seconds, and standard time.
An hours calculator is useful for work shifts, timesheets, payroll estimates, project tracking, travel time, study time, exercise sessions, and any situation where hours and minutes need to be added or converted.
Decimal hours are especially useful when entering time into payroll systems, invoices, or spreadsheets.
Your result shows the final time as decimal hours, total minutes, total seconds, and standard time. This makes it easy to use the same answer in different formats.
An hours calculator adds, subtracts, and converts hours, minutes, and seconds into decimal hours and other time formats.
Divide the number of minutes by 60. For example, 30 minutes equals 0.5 hours and 15 minutes equals 0.25 hours.
Yes. Select subtract hours, enter the starting time, then enter the amount of time you want to subtract.
Decimal hours are useful for payroll, invoicing, time tracking, and spreadsheets because they turn hours and minutes into one number.