Billable hours calculator
Free billable hours calculator: find your utilization rate and revenue, or the hourly rate you need to hit an annual income goal.
Utilization
62.5%
What this calculator tells you
Utilization is the share of working hours that are truly billable. Planning from utilization keeps your goals realistic: if you need 20 client hours a week and your utilization is 60%, you must be available ~33 hours to hit that target. The goal‑based mode in this tool flips the math to show the hourly rate required for a given annual income once you account for weeks off and non‑billable time.
A worked example
Suppose you plan to work 48 weeks × 40 hours = 1,920 hours a year. At 60% utilization, that is 1,152 billable hours. To earn $120,000 from billable time alone, you would need roughly $104/hour. If you also sell fixed‑fee packages, treat them as an effective hourly rate over the effort it actually takes.
Assumptions and caveats
This is a planning tool. It ignores collections risk, scope changes, and lead variability. It also treats each hour as equal, which may not hold if your mix includes long on‑site days and quick virtual sessions. Adjust weeks, hours, and utilization to mirror your reality.
What to do with the result
Use utilization to set capacity limits in your booking workflow and to decide when to raise prices or narrow scope. In GoWithAgentic, pair this with follow‑up and review agents so admin time stays low and utilization stays honest.
A planning estimate, not tax or employment advice.
FAQ
How is utilization calculated?
Billable hours ÷ available hours × 100. Billable hours cannot exceed available hours.
How do I find the hourly rate I need?
Divide your annual income goal by billable hours per year: weeks per year × hours per week × utilization %.
What is a realistic utilization rate?
Many service professionals bill 50–70% of working hours; the rest goes to admin, sales, and follow-up. The default here is 60%.
Why default to 48 weeks?
It leaves about four weeks for holidays, vacation, and sick time. Change it to match your year.
Educational only. Not legal advice and not a substitute for testing the live agent. Billable hours calculator runs in your browser — nothing is sent to your CRM unless you copy it yourself.