Time conversion library
Time conversions
Convert custom values or open an exact reference page for a common minute or hour amount.
Hours and minutes use base 60
Clock-style time and decimal hours are different representations. Sixty minutes make one hour, so 30 minutes is one-half of an hour: 0.50 decimal hours. A value such as 1 hour 30 minutes therefore becomes 1.50 hours, not 1.30.
minutes ÷ 60 Hours → minutes
hours × 60
Use the general converters for any value. Exact pages are useful when you want a quick lookup with the formula and nearby values already shown.
Divide by 60
Minutes to hours
See both decimal-hour and hours-and-minutes representations.
Multiply by 60
Hours to minutes
Convert decimal or whole-hour values directly to total minutes.
Round at the end when possible
Some minute values create repeating decimal hours. If the exact minutes are available, preserve them through the calculation and round only the displayed final result when practical.