Hours to Minutes (h to min)

How to convert hours to minutes

Multiply the hours by 60:

min = h × 60

2.25 h × 60 = 135 min. The factor is exact. The result shows the same time as hours and minutes — 2 h 15 min — and in seconds. To go the other way, divide minutes by 60, or use minutes to hours.

Hours to minutes chart

Decimal hours on timesheets

Payroll and time-tracking apps record hours as decimals. To read them as a clock:

The most common mistake is reading 1.5 hours as 1 hour 50 minutes; it is 1 hour 30 minutes. Many employers round to tenths of an hour (6 minutes) or quarter hours (15 minutes). To add up hours worked from clock-in and clock-out times, use the hours calculator or the time card calculator.

Travel and cooking times

Flight durations, driving estimates and slow-cooker recipes are given in hours, often with decimals: a 2.75-hour drive is 2 hours 45 minutes, and a 6.5-hour braise is 6 hours 30 minutes. When planning arrival times, add the hours and minutes separately and carry 60 minutes into an hour; the time calculator does this for a whole list of steps and shows the clock time after each one. For the minutes in many hours at once — a week of shifts — paste the hours into Convert a list of values.

Billing in fractions of an hour

Lawyers, consultants and repair shops often bill in tenths or quarters of an hour. In tenths, every 6 minutes is 0.1 hour, so a 20-minute call is billed as 0.3 or 0.4 depending on the rounding rule; in quarters, it is 0.5 if rounded up to the next quarter. Converting the billed hours back to minutes — 0.3 hour is 18 minutes — shows how much time each line on an invoice stands for.

Hours, minutes and seconds

An hour is 60 minutes and 3,600 seconds; a day is 24 hours, 1,440 minutes and 86,400 seconds. For seconds, see days to seconds; for a whole day, how many minutes are in a day. To add durations like 1:45 and 2:30 together, the time calculator keeps hours and minutes separate.