Utilization Rate Calculator
See what share of your available time is billable—and how much is consumed by non-billable work.
Calculator
Hours you can (or did) invoice to clients.
Total working hours in the same period (e.g. 40/week).
Results
Utilization rate
75.00%
Non-billable hours
10.0
Admin, sales, learning, idle time in this period
What this means
Utilization in the 60–80% range is a healthy target for many freelancers—room for non-billable work without idle waste.
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Utilization Rate Summary
How to calculate utilization rate: billable hours ÷ available hours. Also called utilisation in UK spelling. It shows how much of your capacity turns into revenue—and why “full-time hours” are not the same as billable hours.
Explanation
How to calculate utilization rate: divide billable hours by available hours for the same period, then multiply by 100 for a percentage. The formula is the same whether you say utilization or utilisation.
Utilization rate is the percentage of capacity that was billable.
Non-billable hours are available hours minus billable hours (admin, marketing, learning, downtime).
Business implication: pricing models that assume near-100% utilization undercharge the real cost of running the business. Use your utilization rate with the Hourly Rate Calculator so your rate covers non-billable time.
Step-by-step example
Freelancer example: 30 billable hours in a 40-hour week:
- Utilization: 30 ÷ 40 = 75%
- Non-billable: 10 hours (sales, admin, learning)
Agency example: a consultant logs 28 billable hours against 40 available hours in the same week:
- Utilization: 28 ÷ 40 = 70%
- Non-billable: 12 hours (internal meetings, proposals, training)
Both are healthy for sustained delivery; neither is “full” utilization—and that gap is exactly what pricing must cover.
Formula
Utilization = Billable hours ÷ Available hours
Non-billable hours = Available hours − Billable hours
Helpful tips
- Track utilization weekly; one busy month can hide a weak quarter.
- If utilization is chronically low, fix pipeline before cutting rates.
- If utilization is always maxed, raise prices or protect delivery quality with stricter intake.
- After you know your rate of utilization, set a sustainable rate with the Hourly Rate Calculator.
FAQ
How do you calculate utilization rate?
Utilization rate (also spelled utilisation) = billable hours ÷ available hours. Multiply by 100 for a percentage. Example: 30 billable hours in a 40-hour week is 30 ÷ 40 = 75% utilization.
What is a good utilization rate?
For freelancers, sustained 60–80% billable utilization is common if sales and admin are included in capacity. Agencies often target role-specific ranges. 100% billable is rarely sustainable.
What counts as available hours?
Use the same period’s total working capacity (for example 40 hours in a week), not only the hours you hoped to bill. Holidays can be excluded from available if you want a work-week view.
How does utilization affect my hourly rate?
Lower utilization means fewer billable hours to recover your annual costs, so your sticker hourly rate must rise. Pair this tool with the Hourly Rate Calculator to set a rate that still covers non-billable time.
How accurate is this calculator?
It is a direct ratio of the hours you enter. Accuracy depends on consistent definitions of billable vs available across weeks.
Related tools
Key terms
Utilization rate
Definition. The share of available work time that is billable (or productive toward revenue).
In simple terms. No one bills 100% of the week. Utilization explains why a target hourly rate must be higher than a naive income ÷ hours-in-a-year math.
Utilization = billable hours ÷ available hours
Example. 25 billable hours in a 40-hour week is 62.5% utilization.
Common mistake. Assuming full-time hours are all billable when setting prices or hiring capacity.
Related calculators. Utilization Rate Calculator, Hourly Rate Calculator
Related terms. Billable hours, Hourly rate, Effective hourly rate
Billable hours
Definition. Hours you can reasonably charge a client for—usually delivery work, not all work time.
In simple terms. Marketing, bookkeeping, learning, and unpaid meetings often are not billable. Capacity planning should separate available hours from billable hours.
Annual billable hours ≈ weekly billable hours × working weeks
Example. 20 billable hours/week × 48 weeks ≈ 960 billable hours/year.
Common mistake. Using 2,080 hours (40 × 52) as if they were all billable.
Related calculators. Hourly Rate Calculator, Utilization Rate Calculator
Related terms. Utilization rate, Hourly rate
Hourly rate
Definition. The price you charge per billable hour so income and business costs fit your goals.
In simple terms. A sustainable rate covers desired income, business expenses, and non-billable time—not only the hours you hope to invoice.
Hourly rate ≈ (desired income + annual expenses + profit buffer) ÷ annual billable hours
Example. If you need $90,000 covered and expect 1,200 billable hours, you need about $75/hour before tax nuance.
Common mistake. Pricing from take-home wish alone while ignoring expenses, taxes, and unpaid admin time.
Related calculators. Hourly Rate Calculator, Effective Hourly Rate Calculator
Related terms. Effective hourly rate, Utilization rate, Billable hours
Notes & Assumptions
Utilization is a core professional-services metric used by agencies, consultancies, and freelancers to plan capacity and rates.
Last reviewed: July 2026