Billable Hours Calculator

Free billable hours calculator. Convert work time to decimal hours for invoicing and time tracking. Perfect for consultants and freelancers.

Calculate your billable hours in decimal format for accurate invoicing. Enter start and end times to get precise decimal hours ready for client billing and time tracking systems.

Common use cases

  • Consultants billing clients
  • Freelancers tracking project time
  • Law firms calculating billable time
  • Agency client billing
  • Any professional services invoicing

How to use

  1. Enter start time
  2. Enter end time
  3. View billable hours in decimal format
  4. See the equivalent HH:MM breakdown
  5. Copy for invoice or timesheet

FAQ

Why decimal hours?

Most billing systems use decimal hours (e.g., 7.75 hours instead of 7:45) for easier calculation and invoicing.

How precise is the calculation?

Results are calculated to two decimal places, the industry standard for billing.