Glossary / Utilization Rate
Utilization Rate
Utilization rate is the percentage of available work hours that are billable to clients. It is calculated as billable hours divided by total available hours. Utilization is the central metric for professional services firms — consulting, agencies, accounting, law — because it measures how efficiently the team converts capacity to revenue.
Formula
Utilization rate (%) = Billable hours / Total available hours × 100
Example
A consultant has 160 available hours in a month and bills 120 of them. Utilization is 75%. Industry benchmarks: consulting and law typically target 60-80% utilization; agencies often target 70-85%. Below 50% suggests under-pricing or pipeline weakness.
Why it matters
Utilization × hourly rate × hours = revenue. Raising utilization 10 points without changing rate or hours is a 10% revenue lift. Tracking utilization by team member catches under-utilized capacity and over-extended team members.
Frequently asked
Should I include time spent on internal projects?
Most firms exclude internal time from utilization. Internal projects are real work but they don't generate revenue, so including them inflates utilization. Some firms track internal work as a separate 'investment' bucket.
What's the difference between utilization and realization?
Utilization measures hours billed. Realization measures dollars collected vs. dollars at full standard rate. A consultant could be 80% utilized but only 70% realization if discounts or write-downs are common.
Related terms
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