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Billable utilization rate calculator
Enter the hours you billed and the hours you were available to work. See your utilization, your gap to a target and what it's worth at your rate.
From your timesheets: hours you invoiced.
A year minus vacation and holidays is often 46 to 48.
Billable utilization rate
65.2%
- Available hours
- 1,840
- Billable hours per week
- 26.1
- Billed revenue
- $120,000
- Hours at 70%
- 1,288
- Hours short of target
- 88
- Revenue the gap leaves out
- $8,800
Estimate only. Nothing you type leaves your browser.
The formula
Utilization is billable hours divided by available hours. Available hours are the hours you plan to work each week times the weeks you worked: a year with 6 weeks off at 40 hours is 1,840. If 1,200 of those were billed, utilization is 65%. The rest went to finding clients, writing proposals, invoicing, learning and the small unpaid fixes every project has.
Why the target matters more than the number
Utilization tells you whether your rate is realistic. A rate set for 80% utilization falls short when you actually bill 60%. Pick a target from a few months of your own data, then use it in the day rate calculator as the billed share of your days.
Getting the inputs
Billable hours come from your timesheets or invoices. If you don't track time yet, track two typical weeks with a timer, every task included, before trusting the result.
IN SHORT
Billable utilization = billable hours ÷ available hours x 100. Available hours are your working hours per week times the weeks you worked. 1,200 billable hours out of 1,840 available (40 hours x 46 weeks) is 65.2%. At a 70% target you'd need 88 more billable hours, worth $8,800 at $100 an hour. Sales and admin time is why nobody reaches 100%.
Prices and limits as of .
Questions
What is a good utilization rate for a freelancer?
Billable utilization or productive utilization?
How do I raise my utilization?
Related calculators
Count billable hours as you work
Time Tracking in SoloWOS marks hours as billable per project, so your utilization comes from real numbers. 14 days free, no card needed · Then Basic for $2/month.