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Billable Utilisation Calculator

Work out billable utilisation instantly with clear inputs, formula shown and shareable results.

About Billable Utilisation Calculator

Effective rate per hour worked is the number that really matters: it combines utilisation and billing rate into the revenue each hour of effort produces. Long hours at low utilisation flatter timesheets while destroying economics.

Formula

Billable utilisation

Utilisation = billable / worked; effective rate = billable × rate / worked hours

Worked example

With the default values below, Billable Utilisation Calculator returns Billable Utilisation of 77.381%. Change any input above and every figure here is recalculated in your browser.

Inputs used

Billable Hoursaccepts 1–1,000
130
Total Hours Workedaccepts 1–1,000
168
Billing Rate Per Hourminimum 0
1,800
Target Utilisationaccepts 1–100 %
78 %

Results

Billable Utilisation
77.381%
Revenue Generated
$234,000.00
Revenue Missing Against Target
$1,872.00
Effective Rate Per Hour Worked
$1,392.86

Step by step

  1. 1Values used
  2. 2Billable utilisation
  3. 3Billable Utilisation= 77.381
  4. 4Revenue Generated= 234,000.00
  5. 5Revenue Missing Against Target= 1,872.00
  6. 6Effective Rate Per Hour Worked= 1,392.86

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Figures are estimates based on the inputs given. Marketing performance, platform fees and conversion behaviour vary by audience, channel and season. Use this as a planning guide, not a forecast.
  • This is an estimate for general information and not professional financial, tax or legal advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Figures are estimates based on the inputs given. Marketing performance, platform fees and conversion behaviour vary by audience, channel and season. Use this as a planning guide, not a forecast.

Frequently Asked Questions

Why measure against hours worked rather than contracted?

Because it reveals whether overtime is being absorbed into unbillable work, which is a common hidden loss.

Is 100% utilisation the goal?

No. It leaves no capacity for improvement work, training or handling client emergencies.

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Billable Utilisation Calculator | Calcrivo