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Required Billable Utilization Calculator

Calculate the share of work hours that must be billable to hit a revenue target at a known rate and total work hours.

Starting values are an editable worked example.

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How to use

  1. Enter Revenue target.
  2. Enter Hourly rate.
  3. Enter Total available work hours.
  4. Calculate, then review the period, scope and assumptions before using the result for pricing or planning.

How it is calculated

Required billable hours = target ÷ rate; utilization = required hours ÷ total hours × 100

Example

A 120,000 target at 100 per hour needs 1,200 billable hours; out of 1,800 available work hours that requires 66.67% utilization.

Important notes

If required utilization exceeds 100%, the target is not achievable with the entered hours and rate alone; raise the rate, add capacity or lower the target.

Worked examples and interpreting results

Worked examples and interpreting results
CaseCalculationResult
Required billable hours120000 ÷ 1001,200
Required utilization1200 ÷ 1800 × 10066.666667 %

Frequently asked questions

Must utilization be the same all year?

Not necessarily. Seasonality can vary; what matters is that the annual average and cash plan support the target realistically.

Is the result a mandatory client price?

No. It is a planning result from your inputs; final pricing depends on scope, market, contract, taxes and risk.

Should I use monthly or annual figures?

Keep all inputs on the same period so annual income is not mixed with monthly hours or expenses.