Time To Decimal Calculator
Use this time to decimal calculator to convert hours and minutes to decimal hours, or decimals back to minutes. The chart covers every minute from 1 to 60.
Hours And Minutes To Decimal
Decimal To Hours And Minutes
Related Calculators
How To Convert Time To Decimal Hours
Divide the minutes by 60. That is the whole method. 45 minutes is 45 divided by 60, which is 0.75 hours. 30 minutes is 0.5 and 15 minutes is 0.25.
With hours and minutes together, convert only the minutes and add the hours. 7:45 is 7 hours plus 45 minutes, so 7 + 0.75, which is 7.75.
To go the other way, take the part after the decimal point and multiply by 60. 7.75 hours is 7 hours and 0.75 times 60 minutes, which is 45 minutes.
Minutes To Decimal Chart, 1 To 60
Use this chart for payroll or a paper timesheet. Find the minutes, and read the decimal beside it. Decimals are rounded to two places.
| Min | Hours | Min | Hours | Min | Hours | Min | Hours |
|---|---|---|---|---|---|---|---|
| 1 | 0.02 | 16 | 0.27 | 31 | 0.52 | 46 | 0.77 |
| 2 | 0.03 | 17 | 0.28 | 32 | 0.53 | 47 | 0.78 |
| 3 | 0.05 | 18 | 0.30 | 33 | 0.55 | 48 | 0.80 |
| 4 | 0.07 | 19 | 0.32 | 34 | 0.57 | 49 | 0.82 |
| 5 | 0.08 | 20 | 0.33 | 35 | 0.58 | 50 | 0.83 |
| 6 | 0.10 | 21 | 0.35 | 36 | 0.60 | 51 | 0.85 |
| 7 | 0.12 | 22 | 0.37 | 37 | 0.62 | 52 | 0.87 |
| 8 | 0.13 | 23 | 0.38 | 38 | 0.63 | 53 | 0.88 |
| 9 | 0.15 | 24 | 0.40 | 39 | 0.65 | 54 | 0.90 |
| 10 | 0.17 | 25 | 0.42 | 40 | 0.67 | 55 | 0.92 |
| 11 | 0.18 | 26 | 0.43 | 41 | 0.68 | 56 | 0.93 |
| 12 | 0.20 | 27 | 0.45 | 42 | 0.70 | 57 | 0.95 |
| 13 | 0.22 | 28 | 0.47 | 43 | 0.72 | 58 | 0.97 |
| 14 | 0.23 | 29 | 0.48 | 44 | 0.73 | 59 | 0.98 |
| 15 | 0.25 | 30 | 0.50 | 45 | 0.75 | 60 | 1.00 |
60 minutes is 1.00 hours. Decimals are rounded to two places, so 1 minute is 0.02.
Decimal To Minutes And Decimal To Time
To turn decimal hours into minutes, multiply the decimal by 60. 0.25 hours is 15 minutes, and 0.1 hours is 6 minutes.
To turn decimal hours into hours and minutes, keep the whole number as the hours. Then multiply the part after the point by 60 for the minutes.
| Decimal hours | Minutes |
|---|---|
| 0.10 | 6 |
| 0.20 | 12 |
| 0.25 | 15 |
| 0.30 | 18 |
| 0.40 | 24 |
| 0.50 | 30 |
| 0.60 | 36 |
| 0.70 | 42 |
| 0.75 | 45 |
| 0.80 | 48 |
| 0.90 | 54 |
Multiply by 60. 7.75 hours is 7 hours and 45 minutes.
Why Payroll Uses Decimal Hours
Pay is a rate times a number of hours, and multiplying is easier with a decimal. 7 hours 45 minutes at $20 an hour is awkward to work out. 7.75 times 20 is simple.
Many payroll and time clock systems store and print hours as decimals. If your pay slip says 7.75, it means 7 hours 45 minutes, and not 7 hours 75 minutes.
That is the usual confusion on a timesheet. The digits after the point are fractions of an hour, not minutes. 7.30 hours is 7 hours 18 minutes, while 7 hours 30 minutes is 7.50.
Common Conversions
These are the minutes people look up most often.
| Minutes | Decimal hours |
|---|---|
| 5 minutes | 0.08 |
| 10 minutes | 0.17 |
| 15 minutes | 0.25 |
| 20 minutes | 0.33 |
| 30 minutes | 0.50 |
| 40 minutes | 0.67 |
| 45 minutes | 0.75 |
| 50 minutes | 0.83 |
Some minutes do not convert evenly. 20 minutes is one third of an hour, which is 0.33 when rounded to two places. That is why summing rounded days can differ from converting the total.
Converting A Whole Timesheet
Convert the total minutes, not each day. Take a week of 38:30 worked, which is 38.50 decimal hours. At $20.00 an hour that pays $770.00.
A week of 42:30 is 42.50 hours and pays $850.00. If each day had been rounded first, the total could be a few cents off.
The time card calculator converts the weekly total from the minutes, so its decimal figure is the one to use.
| Time | Decimal hours | Pay at $20 an hour |
|---|---|---|
| 7:45 | 7.75 | $155.00 |
| 8:30 | 8.50 | $170.00 |
| 8:45 | 8.75 | $175.00 |
| 38:30 | 38.50 | $770.00 |
| 42:30 | 42.50 | $850.00 |
To add a whole week of times, use the time card calculator.
Decimal Hours And Rounding
Two decimal places are enough for most payroll. One minute is 0.0167 hours, and 0.02 is the closest two-place value.
If your employer rounds the clock times to 6 minutes, every result is a clean tenth of an hour. If it rounds to 15 minutes, every result is a quarter. Both avoid the repeating decimals.
To see how rounding changes a week, use the time card rounding calculator.
How To Use The Converter
- To convert to decimal, enter the hours and the minutes at the top of the page.
- To convert back, enter the decimal hours in the second box.
- Read the result. It updates as you type.
- For a long list, use the chart above.
- To work with your own start and end times, use the time card.
Questions People Ask
What is 45 minutes in decimal hours?
45 minutes is 0.75 hours, because 45 divided by 60 is 0.75.
How do I convert hours and minutes to decimals?
Divide the minutes by 60 and add the hours. 8:30 is 8.50, because 30 minutes is 0.5 hours.
How do I convert decimal hours to minutes?
Multiply the decimal by 60. For example, 0.75 hours is 45 minutes and 0.2 hours is 12 minutes. For 7.2 hours, keep the 7 and convert the 0.2, which gives 7 hours 12 minutes.
How do I convert time card hours to decimals for payroll?
Convert the total minutes for the period in one go. A week of 38:30 is 38.50 decimal hours, which you multiply by the hourly rate.
What is 7.5 hours in hours and minutes?
It is 7 hours 30 minutes. Multiply the 0.5 by 60 to get 30 minutes. In the same way, 8.25 hours is 8 hours 15 minutes.
How many minutes is 0.1 of an hour?
It is 6 minutes. That is why rounding to 6 minutes is popular: every result is a whole tenth of an hour.
Why is 20 minutes 0.33 hours?
20 divided by 60 is 0.3333 and so on. Rounded to two places it is 0.33. Three 20 minute periods add up to 0.99, not 1.00, which is why the total should be converted in one go.