How hours are converted to decimal
To convert minutes to decimal hours, divide the minutes by 60. For example, 15 minutes is 0.25 hours, 30 minutes is 0.5 hours, and 45 minutes is 0.75 hours.
Multiplying decimal hours by an hourly billing rate produces the exact gross payment amount without fractional minute rounding discrepancies.
Worked example
Converting 7 hours 45 minutes at an hourly billing rate of £25:
7 hours + (45 / 60) = 7.75 decimal hours (465 total minutes). Multiplying 7.75 hours by £25 produces £193.75 total earnings.
Inputs for the hours to decimal calculator
Hours
The number of whole hours worked or billed.
Minutes
The remaining minutes from 0 to 59.
Seconds
Optional seconds from 0 to 59 for high-precision time tracking.
Hourly billing pay rate
Your hourly wage or client charge-out rate.
CALCULATOR QUESTIONS
Hours to decimal calculator questions
What is 20 minutes in decimal hours?
20 minutes divided by 60 equals 0.3333 decimal hours (or 0.33 rounded to two decimal places).
Why should timesheets use decimal hours?
Computer payroll systems calculate wages on decimal values, preventing rounding errors across multiple pay periods.