Decimal Hours Converter and minutes-to-hours chart

How the decimal hours converter works

The converter has three fields: hours and minutes, decimal hours and minutes. Type into any field and the other two show the same time in their unit. Convert 7:45 to decimal hours, 7.8 hours back to hours and minutes, or 465 minutes to hours. The hours and minutes field also accepts 7h 45m and 7h45.

Three rules cover every conversion:

• Minutes to decimal hours: minutes ÷ 60. Example: 90 ÷ 60 = 1.5.
• Decimal hours to minutes: hours × 60. Example: 2.25 × 60 = 135.
• Hours and minutes to decimal hours: whole hours + minutes ÷ 60. Example: 7:45 = 7 + 45 ÷ 60 = 7.75.

Decimal to time: hours and minutes from decimal hours

To turn decimal hours back into time, keep the whole hours and multiply the decimal part by 60: 6.4 hours is 6 hours and 0.4 × 60 = 24 minutes, so 6:24. Type the decimal hours into the converter and the hours and minutes field shows the time.

Why payroll uses decimal hours

Hours and minutes count in sixties, so you cannot multiply them by an hourly rate directly. Timesheets, payroll software and invoices therefore use decimal hours: 8.25 hours × $18.00 = $148.50. The common mistake is to read the minutes as decimals. 8:25 is 8.42 hours, not 8.25, and 8.25 hours is 8:15.

Many time clocks also record time in tenths of an hour (6-minute steps): 0.1 hours is 6 minutes, 0.5 hours is 30 minutes. If you need to add up working hours first, use the hours calculator for a single day or the time card calculator for a week; both show the total in decimal hours as well.

Minutes to decimal hours chart (1 to 60 minutes)

Every minute from 1 to 60 with its decimal hours, rounded to two places.

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

Longer times in hours

Minutes	Hours and minutes	Decimal hours
75	1:15	1.25
90	1:30	1.50
100	1:40	1.67
120	2:00	2.00
135	2:15	2.25
150	2:30	2.50
180	3:00	3.00
200	3:20	3.33
240	4:00	4.00
300	5:00	5.00
360	6:00	6.00
450	7:30	7.50
480	8:00	8.00

To convert any other number of minutes, type it into the minutes field above, or add times together with the time calculator.