What is 10 minutes in decimal?

0.17 hours. Billed in six-minute units, it rounds up to 0.2.

What is 15 minutes in decimal?

0.25 hours, a quarter of an hour. Billed in six-minute units, it rounds up to 0.3.

What is 20 minutes in decimal?

0.33 hours, a third of an hour. Billed in six-minute units, it rounds up to 0.4.

What is 30 minutes in decimal?

0.5 hours, whatever unit you bill in.

What is 40 minutes in decimal?

0.67 hours. Billed in six-minute units, it rounds up to 0.7.

What is 45 minutes in decimal?

0.75 hours. Billed in six-minute units, it rounds up to 0.8.

What is 50 minutes in decimal?

0.83 hours. Billed in six-minute units, it rounds up to 0.9.

What is 1 hour 15 minutes as a decimal?

1.25 hours. The whole hour stays 1 and the 15 minutes become 0.25.

How do I convert decimal hours back to minutes?

Multiply the part after the point by 60. 0.75 hours is 45 minutes, so 1.75 hours is 1 hour 45 minutes.

What is 0.1 of an hour?

Six minutes. It is the unit most law firms in the US and the UK bill in.

Built by Unison Labs

Minutes to decimal hours converter

Type the minutes and read the decimal hours, to two places and in tenths of an hour. Below is a chart of every minute from 1 to 60, and of what time bills as in 5, 6, 10 and 15-minute units.

Minutes to decimal

HoursMinutes

Common times

Decimal hours

0.67

Tenths, rounded up0.7

Tenths, to the nearest0.7

Minutes to decimal chart

Every minute from 1 to 60 in decimal hours. Pick a billing unit to see what each amount of time bills as, rounded up to the next unit.

Show

Minutes 1 to 60 in decimal hours
Minutes	Decimal hours	Tenths, rounded up
1 min	0.02	0.1
2 min	0.03	0.1
3 min	0.05	0.1
4 min	0.07	0.1
5 min	0.08	0.1
6 min	0.10	0.1
7 min	0.12	0.2
8 min	0.13	0.2
9 min	0.15	0.2
10 min	0.17	0.2
11 min	0.18	0.2
12 min	0.20	0.2
13 min	0.22	0.3
14 min	0.23	0.3
15 min	0.25	0.3
16 min	0.27	0.3
17 min	0.28	0.3
18 min	0.30	0.3
19 min	0.32	0.4
20 min	0.33	0.4
21 min	0.35	0.4
22 min	0.37	0.4
23 min	0.38	0.4
24 min	0.40	0.4
25 min	0.42	0.5
26 min	0.43	0.5
27 min	0.45	0.5
28 min	0.47	0.5
29 min	0.48	0.5
30 min	0.50	0.5
31 min	0.52	0.6
32 min	0.53	0.6
33 min	0.55	0.6
34 min	0.57	0.6
35 min	0.58	0.6
36 min	0.60	0.6
37 min	0.62	0.7
38 min	0.63	0.7
39 min	0.65	0.7
40 min	0.67	0.7
41 min	0.68	0.7
42 min	0.70	0.7
43 min	0.72	0.8
44 min	0.73	0.8
45 min	0.75	0.8
46 min	0.77	0.8
47 min	0.78	0.8
48 min	0.80	0.8
49 min	0.82	0.9
50 min	0.83	0.9
51 min	0.85	0.9
52 min	0.87	0.9
53 min	0.88	0.9
54 min	0.90	0.9
55 min	0.92	1.0
56 min	0.93	1.0
57 min	0.95	1.0
58 min	0.97	1.0
59 min	0.98	1.0
60 min	1.00	1.0

Time worked billed in 5-minute units, rounded up
Time worked	Units	Billed	Decimal hours
1-5 min	1	5 min	0.08
6-10 min	2	10 min	0.17
11-15 min	3	15 min	0.25
16-20 min	4	20 min	0.33
21-25 min	5	25 min	0.42
26-30 min	6	30 min	0.50
31-35 min	7	35 min	0.58
36-40 min	8	40 min	0.67
41-45 min	9	45 min	0.75
46-50 min	10	50 min	0.83
51-55 min	11	55 min	0.92
56-60 min	12	60 min	1.00

Time worked billed in 6-minute units, rounded up
Time worked	Units	Billed	Decimal hours
1-6 min	1	6 min	0.1
7-12 min	2	12 min	0.2
13-18 min	3	18 min	0.3
19-24 min	4	24 min	0.4
25-30 min	5	30 min	0.5
31-36 min	6	36 min	0.6
37-42 min	7	42 min	0.7
43-48 min	8	48 min	0.8
49-54 min	9	54 min	0.9
55-60 min	10	60 min	1.0

Time worked billed in 10-minute units, rounded up
Time worked	Units	Billed	Decimal hours
1-10 min	1	10 min	0.17
11-20 min	2	20 min	0.33
21-30 min	3	30 min	0.50
31-40 min	4	40 min	0.67
41-50 min	5	50 min	0.83
51-60 min	6	60 min	1.00

Time worked billed in 15-minute units, rounded up
Time worked	Units	Billed	Decimal hours
1-15 min	1	15 min	0.25
16-30 min	2	30 min	0.50
31-45 min	3	45 min	0.75
46-60 min	4	60 min	1.00

How to convert minutes to decimal hours

Divide the minutes by 60. Forty minutes becomes 0.67 hours, and 2 hours 40 minutes becomes 2.67. To go back, multiply the part after the point by 60: 0.75 hours is 45 minutes.

Most results do not come out even, so they are rounded to two places. Seven minutes is really 0.1167 hours and shows as 0.12. On one line that hardly matters, on an invoice it does: 20 minutes at 300 an hour is 100.00, but 0.33 hours at the same rate is 99.00. When money is involved, work from the minutes and round the amount at the end.

Why 1.30 hours is not an hour and a half

Decimal hours and clock time look alike on a timesheet, and that is where most mistakes come from. 1.30 in decimal hours is 1 hour 18 minutes, because 0.30 of an hour is 18 minutes. An hour and a half is 1.5.

Type 1:30 into a field that expects decimals and 12 minutes disappear. The error always runs the same way, so over a week of entries it adds up.

In Excel or Google Sheets

Cell holds	Formula	Result
Minutes, such as 105	`=A2/60`	1.75
Hours in A2, minutes in B2	`=A2+B2/60`	1.75
A time, such as 1:45	`=A2*24`	1.75
Decimal hours, such as 1.75	`=A2/24, formatted [h]:mm`	1:45

A spreadsheet stores a time like 1:45 as a fraction of a day, which is why you multiply it by 24 to get hours. That only works when the cell holds a real time, not text that looks like one. Format a total of times as [h]:mm, or anything over 24 hours starts again from zero.

Payroll and legal billing

Payroll pays for the exact time, so it works in hundredths of an hour, which is what the converter shows. Law firms bill in fixed units instead: usually six minutes, a tenth of an hour, in the US and the UK, and often five minutes in the Netherlands. A started unit counts in full, so 40 minutes bills as 0.7 hours, not 0.67.

Because every entry is rounded on its own, short tasks are where it shows. Ten two-minute emails are 20 minutes of work and bill as a full hour in six-minute units. How a firm rounds is usually set out in its engagement letter. The chart above shows what any amount of time bills as in each unit, and Sixminute records the time as it is worked, so every entry starts from the real minutes.