Time to decimal calculator
Payroll systems and timesheets want hours as decimals: 7 hours 45 minutes is 7.75, not 7.45. This converter goes both ways, adds up a list of times, and shows the chart for every 5-minute step so you can check a pay stub or fill in a timesheet without a mistake.
Hours and minutes to decimal
7:45 = 7.75 hours
Decimal hours to hours and minutes
7.75 hours = 7:45
Add up several times
Minutes to decimal chart
How to use this calculator
- Type hours and minutes in the first box to get decimal hours. 7 hours 45 minutes shows 7.75.
- Type a decimal in the second box to go the other way. 7.75 shows 7:45.
- To add several shifts, enter each one in the list. The totals bar shows the sum in both formats.
- Use the chart to check a conversion by eye: each row is a 5-minute step and its decimal value.
How to convert minutes to decimal hours
Divide the minutes by 60. 45 minutes is 45 ÷ 60 = 0.75, so 7 hours 45 minutes is 7.75 hours. 20 minutes is 0.33, 10 minutes is 0.17 and 1 minute is about 0.02. Going the other way, multiply the decimal part by 60: 0.4 hours is 24 minutes.
The common mistake is reading 7:45 as 7.45. That drops 18 minutes from the shift. Over a two-week period of ten shifts, the same slip loses three hours.
Why payroll uses decimals
Pay is hours multiplied by a rate, and that multiplication only works with decimals. A time clock records 7:45, the payroll system stores 7.75, and 7.75 × $18 gives $139.50. Most systems keep two decimal places, so a minute is worth 0.02 hours and your total can differ from a hand calculation by a cent or two.
If your employer rounds punches to the nearest quarter hour, every day lands on .00, .25, .50 or .75. Anything else on the stub means they are paying actual minutes or rounding to tenths (0.1 hours is 6 minutes).
Checking a pay stub
Add up your own shifts here in hours and minutes, read the decimal total, and compare it with the hours line on the stub. Employers must keep accurate records of hours worked each day and week (29 CFR 516.2), but your own log is what you compare them to. If the stub is short, the paycheck checker on this site walks through the usual causes.
Frequently asked questions
What is 7 hours 45 minutes in decimal?
7.75 hours. The 45 minutes becomes 45 ÷ 60 = 0.75.
What is 0.75 of an hour in minutes?
45 minutes. Multiply the decimal by 60: 0.75 × 60 = 45. Likewise 0.25 is 15 minutes and 0.5 is 30 minutes.
How many decimal places does payroll use?
Usually two. One minute is 0.0167 hours, which rounds to 0.02, so a day of 7 hours 1 minute shows as 7.02. Some systems keep three or four places internally and round only the final pay.
What is 20 minutes as a decimal?
0.33 hours (20 ÷ 60 = 0.3333). 40 minutes is 0.67 and 50 minutes is 0.83.
Is 1.5 hours the same as 1 hour 50 minutes?
No. 1.5 hours is 1 hour 30 minutes. 1 hour 50 minutes is 1.83 hours. The decimal part is a fraction of an hour, not a count of minutes.
Does the calculator save what I type?
Yes, on this device in your browser. Nothing is uploaded. Clearing your browser data removes it.
How do I add up times for a whole week?
Enter each shift as hours and minutes in the list, one row per shift, and read the total in both formats. For clock-in and clock-out times with breaks and overtime, use the time card calculator instead.
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This calculator produces estimates for your own records. It is not payroll, tax or legal advice. Overtime rules vary by state, industry and employer policy. Sources: U.S. Department of Labor, 29 CFR Parts 516, 778 and 785; state labor codes named above.