Time to Decimal Calculator

Decimal time expresses time as a decimal number where 1 hour = 1.0 and 30 minutes = 0.5. It is widely used in payroll and programming.

Formula: decimal_hours = hours + minutes/60 + seconds/3600. Example: 2h 30min = 2.5.

It simplifies invoicing for work hours, calculations in Excel and time-series data analysis.

Decimal hours are a fraction of an hour (2.5 = 2h 30min), while decimal minutes give total minutes (150 = 2h 30min).

Total seconds = hours × 3600 + minutes × 60 + seconds.

Hours: 0–23, minutes: 0–59, seconds: 0–59 — following the standard HH:MM:SS format.

Yes. The decimal hours result can be directly multiplied by an hourly rate for invoicing.

Decimal hours are rounded to 6 decimal places, decimal minutes to 4, and total seconds are an exact integer.

Enter 1 hour, 15 minutes, 0 seconds. Result: 1.25 decimal hours, 75 decimal minutes, 4500 total seconds.

No — it supports only whole seconds (0–59).