Freelance
Billable Utilisation Calculator
Utilisation is how much of the time you worked was time you can invoice. The rest is sales, admin, rework you absorbed, or waiting. If you add a rate, the page also shows the revenue those billable hours represent, and what the unbilled hours would have been at the same rate.
Calculator
How the number is produced
Utilisation = billable hours ÷ total worked hours. Non-billable = total − billable. Revenue = billable × rate, only if you typed a rate.
Worked example
40 hours worked, 30 billed, €50 an hour. Utilisation is 75%. Ten hours were not billed. Billed revenue is €1,500. The unbilled ten hours would have been €500 at the same rate.
When this is useful
A week felt full and the invoice did not, and you want the gap as a number.
Limits
It does not decide which hours should have been billable. Revenue is not profit.
More on the assumptions is on how the calculators work.
Questions
What is a normal utilisation?
This page does not pick one. Many solo practices cannot bill every hour they work. Use your own records.
If a result disagrees with the formula on this page, email hello@gettowork.online.