Decimal Hours Converter

About This Decimal Time Converter

This decimal time converter has two modes. The first turns hours-and-minutes into a single decimal number — useful any time a system asks for hours in the format 1.5 rather than 1:30. The second mode does the reverse, breaking a decimal value back into hours and minutes.

Minutes to Decimal Conversion

The most common reason to need a decimal time converter is payroll: most payroll software accepts decimal hours, not HH:MM. So 7 hours 30 minutes has to be entered as 7.5, not 7.30. This time to decimal calculator handles that conversion automatically as you type — no Convert button to press. Use the included minutes to decimal conversion table as a quick reference: 15 minutes is 0.25, 30 minutes is 0.50, 45 minutes is 0.75, and so on for every minute up to 59.

Convert Hours to Decimal — and Back

To convert hours to decimal, the math is simple: minutes ÷ 60. Going the other way (decimal to time), multiply the decimal portion by 60 to get minutes. This decimal to hours and minutes tool does both directions automatically, so you don't have to remember either formula in the middle of a busy timesheet entry.

Decimal Hours Chart for Quick Lookup

The decimal hours chart below covers all 60 values you'd actually need — every individual minute from 0 to 59 mapped to its decimal value, with the common quarter-hour fractions (¼, ½, ¾) called out for easy spotting. Bookmark this page if you regularly fill in timesheets or invoices.

Related Tools

To compute hours worked from clock-in / clock-out times directly, use the Work Hours Calculator — it produces decimal hours automatically and can apply your hourly rate. To add several time entries together, see the Time Calculator. For two specific times of day, use the Time Duration Calculator.