How do I use a minutes-to-decimal conversion chart?

Find the minutes portion of the time and read off the decimal. For 7:38, look up 38 minutes (0.63), giving 7.63 hours. The decimal is minutes divided by 60, rounded to two places.

Minutes to Decimal Chart - Payroll Time Conversion Table

Minutes	Decimal
1	0.02
2	0.03
3	0.05
4	0.07
5	0.08
6	0.10
7	0.12
8	0.13
9	0.15
10	0.17
11	0.18
12	0.20
13	0.22
14	0.23
15	0.25
16	0.27
17	0.28
18	0.30
19	0.32
20	0.33

Minutes	Decimal
21	0.35
22	0.37
23	0.38
24	0.40
25	0.42
26	0.43
27	0.45
28	0.47
29	0.48
30	0.50
31	0.52
32	0.53
33	0.55
34	0.57
35	0.58
36	0.60
37	0.62
38	0.63
39	0.65
40	0.67

Minutes	Decimal
41	0.68
42	0.70
43	0.72
44	0.73
45	0.75
46	0.77
47	0.78
48	0.80
49	0.82
50	0.83
51	0.85
52	0.87
53	0.88
54	0.90
55	0.92
56	0.93
57	0.95
58	0.97
59	0.98
60	1.00

The chart every payroll desk keeps taped up

Decimal hours are minutes ÷ 60 rounded to two places: 15 minutes is 0.25, 20 is 0.33, 45 is 0.75. This chart covers all sixty minutes so a paper timesheet can be converted line-by-line without a calculator. The quarter-hour values (0.25 / 0.50 / 0.75) are exact; everything else is the standard two-place rounding.

Converting more than a few values? The decimal hours converter has a batch mode that converts a pasted column at once. And totals it accurately from exact minutes rather than the rounded decimals.

Frequently asked questions

Find the minutes portion of the time in the chart and read off the decimal. For 7:38, look up 38 minutes (0.63) and the time is 7.63 hours. The decimal is minutes ÷ 60 rounded to two places, the convention payroll systems use.

Divide the minutes by 60 and add to the hours: 7 hours 45 minutes is 7 + 45÷60 = 7.75. Payroll convention rounds to two decimal places, so 20 minutes is 0.33 and 50 minutes is 0.83.

Because an hour has 60 minutes, not 100. Reading 7:30 as "7.3" is the single most common timesheet mistake: 30 minutes is half an hour, so 7:30 is 7.5 decimal hours.

No: add the minutes first, then convert once. Five days of 7:50 is 39:10, which is 39.17 hours; adding five rounded 7.83s gives 39.15 and shorts the week by over a minute. The batch converter's total is computed the correct way.

Minutes to Decimal Hours Chart

The chart every payroll desk keeps taped up

Frequently asked questions

How do I use a minutes-to-decimal conversion chart?

How do I convert hours and minutes to decimal hours?

Why is 30 minutes 0.5 hours and not 0.3?

Should I add rounded decimals for each day to get a weekly total?

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