Timesheets, invoices and payroll exports often show time as decimal hours: 7.75 instead of 7:45. People have to move between the two constantly, and the classic mistake is reading 7.30 as 7 hours 30 minutes. It is 7 hours 18 minutes. Decimal to Time is a small set of converters that do this one job carefully.
What is here
- Decimal to Time turns 7.75 into 7 hours 45 minutes.
- Time to Decimal turns 7:45 into 7.75 hours, with the decimal places you choose.
- Minutes to Decimal turns a total such as 465 minutes into decimal hours.
- Decimal Hours Chart is a printable reference for 0 to 60 minutes.
- Batch Time Converter converts a pasted column, flags bad rows and totals the rest.
How the converters are built
- Exact math. Every value is held as a whole number of microseconds, not as a floating-point number, so results such as 0.1 + 0.2 never go wrong. Inputs with up to six decimal places are held exactly; anything beyond that is rounded to the nearest microsecond, far below what is displayed.
- In your browser. The conversions run on your device. What you type or paste is never uploaded.
- One engine. The converters, the chart, the examples and the totals all come from the same code, and automated tests check the reference cases listed on the Calculation Method page.
- Honest errors. Input that cannot be read, such as 1:75 or 7,5, is flagged with the reason instead of being quietly corrected into a different number.
What the tools do not do
These tools convert units. They are not payroll software. They do not know your employer's rounding policy, overtime rules, wage laws, taxes or time zones, and the results are not legal, financial or payroll advice. Check a result before you rely on it for pay or billing. The Calculation Method page lists exactly what is and is not covered.
Who runs it
Decimal to Time is an independent project, free to use, with no accounts and no sign-up. If a result looks wrong or you need a converter that is missing, write to us. Wrong results are treated as bugs, and reports with an example are the most useful thing you can send.