Time to Decimal Calculator

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How to Convert Time to Decimal Hours

Payroll systems, invoices, and timesheets use decimal hours because a single number can be multiplied by an hourly rate. Converting is simple: divide the minutes by 60, divide the seconds by 3600, and add everything to the hours.

Decimal hours = hours + (minutes ÷ 60) + (seconds ÷ 3600)

For example, 7 hours and 45 minutes is 7 + 45 ÷ 60 = 7.75 hours. If you earn $20 per hour, that shift pays 7.75 × $20 = $155.

Minutes to Decimal Conversion Chart

Use this chart for quick lookups when filling out a timesheet by hand. Values are rounded to two decimal places, the format most payroll systems expect.

MinutesHour Decimal
10.02
20.03
30.05
40.07
50.08
60.10
70.12
80.13
90.15
100.17
110.18
120.20
130.22
140.23
150.25
MinutesHour Decimal
160.27
170.28
180.30
190.32
200.33
210.35
220.37
230.38
240.40
250.42
260.43
270.45
280.47
290.48
300.50
MinutesHour Decimal
310.52
320.53
330.55
340.57
350.58
360.60
370.62
380.63
390.65
400.67
410.68
420.70
430.72
440.73
450.75
MinutesHour Decimal
460.77
470.78
480.80
490.82
500.83
510.85
520.87
530.88
540.90
550.92
560.93
570.95
580.97
590.98
601.00

Frequently Asked Questions

How do I convert time to decimal hours?

Divide the minutes by 60 and add the result to the hours. For example, 7 hours 30 minutes is 7 + 30/60 = 7.5 decimal hours.

Why do payroll systems use decimal hours?

Payroll software multiplies hours worked by an hourly rate, so time must be a single decimal number. 7:45 becomes 7.75 hours, which can be multiplied directly by a pay rate.

What is 15 minutes in decimal?

15 minutes is 0.25 hours. 30 minutes is 0.50 hours, and 45 minutes is 0.75 hours.

Is this time to decimal converter free?

Yes. The converter is completely free, requires no account, and works on desktop, tablet, and mobile.

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