How to Read Your Agency Utilization Calculator Results
A practical guide to utilization inputs, planning targets and modeled billable value, with a worked agency example.
Utilization shows how much of your available time goes to billable work. It helps you ask where capacity is going; it does not tell you whether a project is profitable or whether you should hire.
Open the free agency utilization calculator to enter your numbers, change the target and optionally email the scenario. This guide explains how to interpret those results.
Start with comparable hours
Utilization rate = billable hours ÷ available hours × 100.
Use the same people and period on both sides. Subtract leave and holidays from contracted hours when defining available time, and keep that definition consistent. Internal meetings, sales, management and training still need time in the plan.
For an individual, 28 billable hours out of 40 available hours equals 70%. For a team with different schedules, divide total billable hours by total available hours. Averaging individual percentages can give a misleading result.
Scheduled billable hours give you planned utilization. Recorded billable hours give you a view of actual utilization. Compare them to learn where estimates and delivery differ; do not silently combine them into one number.
A worked scenario
Suppose five people each have 40 available hours and 28 billable hours per week. Over four weeks, that is 800 available hours and 560 billable hours: 70% utilization.
At an assumed $150 hourly rate, those 560 hours represent $84,000 in modeled billable value. A 75% target would represent 600 billable hours and $90,000. The $6,000 difference assumes that you can sell, deliver and bill the extra 40 hours at that rate.
These are illustrative inputs. They are not customer results or an industry benchmark. Costs, discounts, write-offs, collections and taxes are excluded. A fixed-fee project may generate the same revenue even when hours increase, with the extra labor reducing its margin.
Choose a target for the work people actually do
The calculator starts at 75% as an editable example. A founder who sells and manages the agency needs a different billable target from a specialist assigned primarily to delivery. Targets also depend on service model, project variability and the buffer required for sustainable work.
Below target, review confirmed demand, allocation by role and necessary internal work. Above target, review overtime, leave, delivery quality and upcoming commitments. Neither result alone proves a pipeline problem or a hiring need.
See the capacity planning guide for a weekly planning process. Use the agency pricing guide to connect estimates, labor costs and pricing decisions.
Separate utilization, realization and margin
Utilization describes hours. Realization describes how much of the expected billable value is earned or collected under your chosen definition. Margin compares revenue with the relevant costs.
For example, writing off 10% of an invoice does not automatically change the hours people worked. Keep the hours and financial measures separate so you can see whether the issue was allocation, pricing, scope or collection.
Supervisible connects staffing plans with team availability and project financials. Explore capacity planning or request a demo to see the workflow.
Know Your Capacity. Grow Your Profit.