Time to Decimal Calculator: Convert Hours & Minutes

  • Adam
  • January 9, 2026

Convert hours, minutes, and seconds into decimal hours (e.g., 8:30 to 8.5). Supports rounding settings for payroll and timesheets (nearest 0.25, 0.1, etc.).

Time to Decimal Calculator

Usually set by employer policy.

Decimal Hours
8.50
= 510 Total Minutes

Formula

$$ \text{Decimal} = \text{Hours} + \frac{\text{Minutes}}{60} + \frac{\text{Seconds}}{3600} $$

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