How to Calculate Decimal to Time

What is Decimal to Time?

Converts decimal hours (e.g., 2.75 hours) to hours and minutes (2h 45m), or vice versa. Decimal hours are used in payroll systems and billing; hours:minutes is what clocks display. Mixing them up is a common payroll error.

Step-by-Step Guide

1. 1Decimal to h:mm: integer = hours, decimal × 60 = minutes
2. 2h:mm to decimal: hours + minutes/60
3. 32.75 hours = 2h + (0.75 × 60)m = 2h 45m
4. 42h 45m = 2 + 45/60 = 2 + 0.75 = 2.75 hours

Worked Examples