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Hours to Minutes Calculator

Convert hours to minutes, minutes to hours, or decimal hours to hours and minutes for a time sheet. Type the time the way you have it (2.75, 2:45, 2h 45m) and get minutes, seconds, h:mm and decimal hours at once, with the working shown.

Type 2.75, 2:45, 2:45:30 or 2h 45m.

Try

Result

Minutes
165
Seconds
9,900
Hours and minutes (h:mm)
2:45 (2 h 45 min)
Decimal hours
2.75

How it was worked out

  1. 2.75 hours × 60 = 165 minutes
  2. 165 minutes × 60 = 9,900 seconds

Worked out in your browser. What you type is not sent to ParrotNotes.

How to convert hours to minutes

Multiply the hours by 60. 2.75 hours × 60 = 165 minutes, and 1.5 hours × 60 = 90 minutes. For seconds, multiply the minutes by 60 again: 165 minutes is 9,900 seconds.

If the time is written as hours and minutes, multiply only the hours and add the minutes: 2:45 is 2 × 60 + 45 = 165 minutes. That is why 2:45 and 2.45 are not the same: 2.45 hours is 147 minutes.

Time calculator: minutes to hours

Divide the minutes by 60. 165 minutes ÷ 60 = 2.75 hours. The whole number is the hours; the remainder in minutes is what is left over: 165 − 2 × 60 = 45, so 2 hours 45 minutes.

Some quick ones: 15 minutes is 0.25 hours, 30 minutes is 0.5, 45 minutes is 0.75, 90 minutes is 1.5 and 480 minutes is 8 hours.

Decimal hours and h:mm on a time sheet

Payroll and billing software usually wants decimal hours, rounded to hundredths: a shift of 7 hours 48 minutes is 7 + 48 ÷ 60 = 7.80 hours. The other way round, 7.8 hours is 7 hours and 0.8 × 60 = 48 minutes, so 7:48.

Use the Decimal hours ↔ h:mm mode for that, and the chart below for the minutes part. If you need a whole week of shifts added up with pay, use the time card calculator; for the time between two clock times, use the time duration calculator.

Minutes to decimal hours chart

Each minute from 1 to 60 as a part of an hour: exact to four places, and rounded to hundredths as a time sheet records it.

MinutesExact hoursHundredths
10.01670.02
20.03330.03
30.05000.05
40.06670.07
50.08330.08
60.10000.10
70.11670.12
80.13330.13
90.15000.15
100.16670.17
110.18330.18
120.20000.20
130.21670.22
140.23330.23
150.25000.25
160.26670.27
170.28330.28
180.30000.30
190.31670.32
200.33330.33
210.35000.35
220.36670.37
230.38330.38
240.40000.40
250.41670.42
260.43330.43
270.45000.45
280.46670.47
290.48330.48
300.50000.50
310.51670.52
320.53330.53
330.55000.55
340.56670.57
350.58330.58
360.60000.60
370.61670.62
380.63330.63
390.65000.65
400.66670.67
410.68330.68
420.70000.70
430.71670.72
440.73330.73
450.75000.75
460.76670.77
470.78330.78
480.80000.80
490.81670.82
500.83330.83
510.85000.85
520.86670.87
530.88330.88
540.90000.90
550.91670.92
560.93330.93
570.95000.95
580.96670.97
590.98330.98
601.00001.00
Rounded to the nearest hundredth: 20 minutes is 0.3333 hours, recorded as 0.33.

Rounding to the quarter hour

Some employers record start and stop times to the nearest 5 minutes, tenth of an hour or quarter hour. The US Department of Labor's rule on this, 29 CFR 785.48(b), accepts the practice only if it averages out so that employees are paid for all the time they actually work over time.

Rounding to the nearest quarter hour means 7 minutes past rounds down and 8 minutes past rounds up: 7:07 counts as 7:00 and 7:08 as 7:15. The Decimal hours ↔ h:mm mode shows the nearest quarter hour for any amount you type. Your employer's policy and the law decide how your own time is rounded.

Sources

For logging time on shifts and calls: time management for nurses, sales activity tracking.

The minutes are often call time

Much of the time people convert for a log or an invoice is time on calls and in meetings. ParrotNotes records the call on your phone and gives you a summary and the action items, so the notes are done when the call ends. Free for 100 minutes of recording a month.

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Related tools

Hours and minutes FAQ