Billable Hours Calculator

Estimate annual billable hours from working weeks, days, and utilisation.

Planning estimate

Uses only the figures entered. This is a planning aid, not tax, legal, or financial advice.

Share on LinkedInShare on X
Link to this tool

Copy this HTML to cite this tool from your own site or article.

About Billable Hours Calculator

Billable Hours Calculator estimates total annual billable working hours based on working weeks, days per week, and billable utilization percentage.

How to use Billable Hours Calculator

  1. Enter working weeks per year (accounting for holidays and leave).
  2. Enter working days per week and hours per day.
  3. Specify target billable utilization percentage (e.g. 65%).
  4. Click Calculate to view total annual billable hours.

Examples

Weeks: 46 wks, Days: 5 days/wk, Hours: 8 hrs/day (1,840 total hrs), Utilization: 60% Result: 1,104 billable hours per year.

FAQ

What is utilization percentage?

Utilization percentage is the proportion of working hours spent on revenue-generating client work versus administrative tasks.

What is realistic utilization for solo freelancers?

Solo freelancers typically achieve 55% to 70% billable utilization.