How to use this calculator
- Enter the requested income, cost, capacity or pricing assumptions.
- Review the units and confirm that annual and project values use the same period.
- Calculate and inspect each component of the result.
- Compare at least one conservative scenario before using the estimate.
Input guide
Available work hours
Enter the available work hours used for this scenario. Keep its period and unit consistent with the other fields.
Billable hours
Enter the billable hours used for this scenario. Keep its period and unit consistent with the other fields.
Billable hourly rate
Enter the billable hourly rate ($) used for this scenario. Keep its period and unit consistent with the other fields.
How this calculator works
Utilization rate = billable hours ÷ available work hours × 100.
Worked example
Out of 160 available hours, 120 billable hours equals 75% utilization.
How to interpret the result
Treat the result as a planning baseline. A sustainable freelance decision should also account for unpaid administration, sales time, leave, late payments, market positioning and costs not represented by the selected fields.
Rounding policy
Currency and percentages
Money is rounded to cents and percentages to two decimals.
Assumptions and limitations
- All business costs and reserve percentages are user-entered.
- Billable capacity should exclude realistic non-billable time, leave and business development.
Frequently asked questions
Is this tax or accounting advice?
No. It is a transparent planning estimate based only on the values entered.
Should I compare multiple scenarios?
Yes. Test conservative and optimistic billable capacity, expenses and margin assumptions before setting a rate or price.
When should I recalculate with the Utilization Rate Calculator?
Recalculate whenever your capacity, expenses, target income, margin, reserve or project scope changes.
Why should I use realistic assumptions in the Utilization Rate?
Using total working time as billable time usually understates the rate or price required because administration, sales, leave and downtime are not invoiced.