Decimal hours converter

How many decimal hours is 7 hours 30 minutes?

Hours and minutes to decimal hours and back, and the total of a timesheet in both.

Hours worked

Time or list of times

7:30 or 7.5. One entry per line, or separate them with +.

Rounding

Decimal places

In decimal hours

7.50 h

7:30 is 7.50 hours, or 450 minutes.

The same time written three ways

Decimal hours: 7.50 h
Hours and minutes: 7:30
Minutes: 450

Minutes to decimal hours

Minutes as a fraction of an hour, rounded to two decimals: divide the minutes by 60.

Minutes to decimal hours
Minutes	Decimal hours
1	0.02
5	0.08
6	0.10
10	0.17
12	0.20
15	0.25
18	0.30
20	0.33
24	0.40
25	0.42
30	0.50
35	0.58
36	0.60
40	0.67
42	0.70
45	0.75
48	0.80
50	0.83
54	0.90
55	0.92

Hours and minutes to decimal hours and back, and the total of a timesheet in both.

How to use

Type a time as hours and minutes, such as 7:30, to see it in decimal hours.
Type decimal hours, such as 7.75, to see them as hours and minutes.
For a timesheet, put each day's hours on its own line; the total appears in both forms.
Choose how many decimal places your payroll or invoice uses.

How it works

Payroll, invoicing and project tools often want hours as one decimal number, so that they can be multiplied by an hourly rate. An hour has 60 minutes, not 100, so 7 hours 30 minutes is 7.5 hours, not 7.3.

To turn minutes into a decimal, divide them by 60: decimal hours = hours + minutes ÷ 60. For example, 7:45 is 7 + 45 ÷ 60 = 7.75 hours. The other way, multiply the decimal part by 60: 0.2 hours is 12 minutes, so 8.2 hours is 8:12. A timesheet is added up in minutes first and converted once, so rounding happens only in the total.

Some minutes do not end in a short decimal: 20 minutes is 0.333… hours, shown as 0.33 with two decimals. The result says when it is rounded. Source: the International System of Units (BIPM), which defines the hour as 60 minutes and 3,600 seconds.

Frequently asked questions

How much is 15 minutes in decimal hours?

0.25 hours. Half an hour is 0.5 and 45 minutes is 0.75.

Is 7.3 hours the same as 7 hours 30 minutes?

No. 7.3 hours is 7 hours 18 minutes; 7 hours 30 minutes is 7.5 hours.

How do I calculate pay from hours and minutes?

Convert the time to decimal hours first, then multiply by the hourly rate: 7:45 at €20 an hour is 7.75 × 20 = €155.

Can I enter seconds?

Yes. Use hours:minutes:seconds, such as 1:30:15.

Can the total exceed 24 hours?

Yes. These are durations, so 25:00 means 25 hours, not 01:00 the next day.

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