Time to Decimal Calculator

Convert standard time into billable decimal formats instantly.

Calculations execute locally. Data never leaves your browser.

Enter time values to calculate
How This Works & The Math Behind It

Standard time operates on a base-60 system (60 seconds in a minute, 60 minutes in an hour), which makes payroll and billing calculations difficult. This tool converts standard time into a base-10 decimal format instantly in your browser.

The Fractional Algorithm:

  • Hours: Remain the same whole number.
  • Minutes: Divided by 60 (e.g., 30 minutes / 60 = 0.5 hours).
  • Seconds: Divided by 3,600 (the total number of seconds in an hour).

The formula is: Total Decimal Hours = Hours + (Minutes ÷ 60) + (Seconds ÷ 3600).

Zero-Trace Privacy: Because this tool is often used for proprietary business billing and payroll data, it is engineered to run 100% locally. Your inputs are evaluated by your device's processor and are never uploaded to our servers.