About this time to decimal converter
Payroll and billing usually need hours as a decimal number, because 7 hours 30 minutes cannot be multiplied by an hourly rate directly but 7.5 hours can. To convert, divide the minutes by 60 and the seconds by 3,600 and add both to the hours: 1:15:30 is 1 + 15 ÷ 60 + 30 ÷ 3,600 = 1.2583 hours. This converter does it instantly, shows the result to four decimal places and rounded to two for timesheets, and also gives the decimal minutes and total seconds. Minutes and seconds above 59 are fine, so 90 minutes becomes 1.5 hours. The table lists common minute values in decimal hours.
How to convert time to decimal hours
- Enter the time. Type the hours, minutes, and seconds. Leave a box empty for zero, or press an example.
- Press Convert to decimal. Read the decimal hours, decimal minutes, and total seconds.
- Use it in your timesheet. Copy the decimal hours, or use the value rounded to two decimals shown in the steps.
Frequently asked questions
What is 7 hours 30 minutes in decimal?
It is 7.5 hours, because 30 minutes is half an hour: 30 ÷ 60 = 0.5.
What is 45 minutes as a decimal?
45 minutes is 0.75 hours, because 45 ÷ 60 = 0.75. Likewise 15 minutes is 0.25 and 20 minutes is about 0.3333.
How do I calculate pay from hours and minutes?
Convert the time to decimal hours first, then multiply by the hourly rate. 7:45 is 7.75 hours, so at $20 an hour the pay is $155.
How many decimal places should I use?
Two decimals are usual for timesheets and invoices. Four decimals keep seconds accurate, for example 1:15:30 is 1.2583 hours.
Can I enter more than 59 minutes?
Yes. Minutes and seconds are simply added up, so 0 hours and 150 minutes gives 2.5 hours.