Minutes to decimal hours conversion chart

Payroll systems want hours as decimals: 7.75, not 7:45. To convert, divide the minutes by 60 and add the result to the whole hours. 7 hours 45 minutes = 7 + 45 ÷ 60 = 7.75 hours.

Common conversions

15 minutes = 0.25 hours
30 minutes = 0.50 hours
45 minutes = 0.75 hours
20 minutes = 0.33 hours, 40 minutes = 0.67 hours

Full chart, 1 to 60 minutes

Minutes	Decimal hours	Minutes	Decimal hours	Minutes	Decimal hours
1	0.02	21	0.35	41	0.68
2	0.03	22	0.37	42	0.70
3	0.05	23	0.38	43	0.72
4	0.07	24	0.40	44	0.73
5	0.08	25	0.42	45	0.75
6	0.10	26	0.43	46	0.77
7	0.12	27	0.45	47	0.78
8	0.13	28	0.47	48	0.80
9	0.15	29	0.48	49	0.82
10	0.17	30	0.50	50	0.83
11	0.18	31	0.52	51	0.85
12	0.20	32	0.53	52	0.87
13	0.22	33	0.55	53	0.88
14	0.23	34	0.57	54	0.90
15	0.25	35	0.58	55	0.92
16	0.27	36	0.60	56	0.93
17	0.28	37	0.62	57	0.95
18	0.30	38	0.63	58	0.97
19	0.32	39	0.65	59	0.98
20	0.33	40	0.67	60	1.00

Going the other way

To turn decimal hours back into minutes, multiply the decimal part by 60. 8.6 hours is 8 hours and 0.6 × 60 = 36 minutes.

Watch the rounding

Two decimal places is standard. Total the week in hours and minutes first and convert once at the end, so small rounding differences on each day don’t add up. The time card calculator shows both formats side by side.

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