Calculators · Browser · Free

Hours and Minutes Calculator

Add up amounts of time or find the difference between them. Enter hours and minutes on each row, choose + or − and get the total in hours and minutes and in decimal hours. Open Settings for more rows, seconds or Enter-to-next-field.

How to add hours and minutes

Add the hours and the minutes separately, then turn every 60 minutes into an hour. 1 hour 45 minutes plus 2 hours 30 minutes is 3 hours 75 minutes, which is 4 hours 15 minutes, or 4.25 decimal hours.

Subtracting works the same way, and the result can be negative. 1 hour minus 2 hours 30 minutes is -1 hour 30 minutes, which is useful for time remaining.

Timesheets, projects, travel and media

Use it to total weekly hours for a timesheet, billable time across client tasks, flights and layovers on a trip, or clip lengths for a video or podcast. It also works for prep and cook times, workout logs and study sessions.

Decimal hours are the total divided by 60 minutes, rounded to two places, which is the format most payroll and invoicing systems ask for.

Settings

Enter up to 99 time values in one calculation and choose any combination of hours, minutes and seconds. With Enter = Tab set to Yes, the Enter key moves to the next field, so you can type a long list on a number keypad with one hand. Press Start a new set from this total to carry a result into another calculation.