Durations
Hours calculator
Combine hours and minutes into decimal hours and total minutes.
How to use this calculator
Enter Hours and Minutes. Combine hours and minutes into decimal hours and total minutes. The answer updates when you change an input.
Understanding the result
Decimal hours are useful for timesheets, while total minutes preserve the same duration in a smaller unit.
Common questions
What assumptions does this result use?
Minutes must be non-negative; values above 59 are allowed and carried into hours.
Are intermediate values rounded?
No. The calculation retains JavaScript number precision internally and formats only the displayed result unless the stated method requires a discrete whole value.