Hours to Decimal Calculator

Convert hours, minutes and seconds to decimal hours for timesheets and payroll, or decimal hours back to hours and minutes.

Formula explained below

Convert

Result

7.75

Total minutes
465
Total seconds
27,900

7 hours, 45 minutes and 0 seconds is 7.75 decimal hours.

Calculation breakdown

Step-by-step calculation
StepFormulaResult
Decimal hours7 + 45 ÷ 60 + 0 ÷ 3,6007.75
Total minutes7.75 × 60465

How it works

Enter hours, minutes and seconds to get decimal hours, or switch to enter decimal hours and get hours, minutes and seconds.

Decimal hours = Hours + Minutes ÷ 60 + Seconds ÷ 3,600Hours = whole part of Decimal hours; Minutes = decimal part × 60

Worked example

7 hours 45 minutes:

  1. Minutes as hours: 45 ÷ 60 = 0.75
  2. Decimal hours: 7 + 0.75 = 7.75
  3. Total minutes: 7.75 × 60 = 465

Rounding

Decimal hours are shown to four places. The conversion itself is not rounded.

Sources

Frequently asked questions

How do you convert hours and minutes to decimal hours?

Divide the minutes by 60 and add the whole hours. 7 hours 45 minutes is 7 + 45 ÷ 60 = 7.75 decimal hours. Add seconds divided by 3,600 if you have them.

How do you convert decimal hours to hours and minutes?

The whole number is the hours, and the decimal part times 60 is the minutes. For 7.75 hours, 0.75 × 60 = 45, so it is 7 hours 45 minutes.

Why do payrolls use decimal hours?

Pay is hourly, so multiplying hours by a rate is easier with decimals than with minutes. 7.75 hours at $20 an hour is $155. The result here is not rounded, so follow your employer's payroll rounding rule.

What is 15 minutes as a decimal?

15 minutes is 0.25 hours, 30 minutes is 0.5 hours and 45 minutes is 0.75 hours. A single minute is 0.016667 hours.

Do I count breaks?

The US Department of Labor's Fact Sheet 22 says short rest periods of about 20 minutes or less count as hours worked, and bona fide meal periods of typically 30 minutes or more generally need not. Use the hours worked calculator on this site to total shifts with breaks.

For information only. Payroll rounding and break rules depend on your employer and the law that applies to you.