Educational only: Work and pay decision support, not tax, legal, financial or career advice.
Privacy: No account is required. Tool inputs and results stay in this browser. Anonymous categorical usage analytics send only governed page, tool, cluster and action identifiers; tool inputs and results are never sent. Error monitoring is disabled. Optional saved state stays only on this device.
Update policy: Reviewed when formulas or official dependencies change.
Scope: Market-neutral work and pay planning using your own assumptions.
What this calculator helps you decide
Best for
Measuring billable time against available hours and a personal target.
Outputs
Utilization, available and non-billable hours, target hours and target gap.
Start here
Enter scheduled, excluded and billable hours on one consistent period basis.
- Close-intent boundary
- Do not use this to estimate a contractor parity rate; use Contractor Rate Equivalent Calculator.
Understand real hourly value
Billable Utilization Rate: utilization
Utilization, available and non-billable hours, target hours and target gap.
Billable utilization assumptions
Use one consistent period for scheduled, excluded and billable hours.
Your numbers stay in this browser
Total hours in the measurement period before exclusions.
Hours removed from the utilization denominator.
Hours counted as billable in the same period.
Your entered target as a decimal share, where 0.75 means 75%.
Calculated result
Available time, actual utilization and the target gap remain visible.
PDF and CSV exports stay on this device. Clean page links contain no inputs.
Scenario comparison
Each row names the assumption axis changed from the baseline.
ScenarioResultDifference
Entered scenario70%Baseline
Billable hours: 1,352.573.5%3.5%
Save these results, change an input, then compare the updated figures with this baseline.
The baseline is temporary in this tab and is not added to shared scenario links or generated reports.
Calculation details
View calculation detailsView the formulas and inputs used for these results.
Billable utilization
Utilization
utilizationRate = billableHours ÷ availableHours70%Result70%
Billable hours divided by scheduled hours less exclusions. Displayed using the engine-rounded value.
Billable utilization formula →Available hours
Available hours
availableHours = scheduledHours − excludedHours1,840Result1,840
Scheduled hours less excluded hours. Displayed using the engine-rounded value.
Available hours formula →Non-billable hours
Non-billable hours
nonBillableHours = availableHours − billableHours552Result552
Available hours less billable hours. Displayed using the engine-rounded value.
Non-billable hours formula →Target billable hours
Target hours
targetBillableHours = availableHours × targetUtilizationRate1,380Result1,380
Available hours multiplied by the entered target rate. Displayed using the engine-rounded value.
Target billable hours formula →Hours to target
Target gap
billableHoursGap = targetBillableHours − billableHours92Result92
Target billable hours less entered billable hours; negative means above target. Displayed using the engine-rounded value.
Hours to target formula →Inputs used
- Scheduled hours
- 2,080
- Excluded hours
- 240
- Billable hours
- 1,288
- Target utilization rate
- 0.75
Open this calculator with preset values
This calculator supports documented, shareable scenario URLs. Compatible assistants and applications can construct links using the parameters below.
Scenario values are visible in the URL, calculations run in the browser, and optional saved state stays only on this device. Anyone you share the URL with can read those numbers, so do not include private or identifying data.
| Parameter | Meaning | Unit | Allowed values | Presence | Default |
|---|---|---|---|---|---|
| scheduledHours | Total hours in the measurement period before exclusions. | hours/period | 0.25 to 10000 | Required | 2080 |
| excludedHours | Hours removed from the utilization denominator. | hours/period | 0 to 9999.99 | Required | 240 |
| billableHours | Hours counted as billable in the same period. | hours/period | 0 to 10000 | Required | 1288 |
| targetUtilizationRate | Your entered target as a decimal share, where 0.75 means 75%. | share of available hours | 0 to 1 | Required | 0.75 |
Billable Utilization Rate: utilization
Use utilization only with the available-hour denominator shown beside it.
Formula summary
- Primary formula
- utilizationRate = billableHours ÷ availableHours
Data used here
- The estimate uses your inputs and the work-value formula documented in the methodology.
Decision checks
Act on the result
Confirm which hours are genuinely excluded and billable.
Stress-test the decision
Retest billable hours and your own target rate.
When this estimate can be misleading
- No employer, profession or industry benchmark is supplied.
- Utilization does not measure profitability or work quality.
- Classification of excluded and billable time is outside the model.
- Use utilization only with the available-hour denominator shown beside it.
Educational estimate, not advice. See all assumptions & limitations →
Related reading
Use these practical guides to interpret the decision and its assumptions.
- How to use the Billable Utilization Rate calculator
Calculate utilization from scheduled, excluded and billable hours without supplying an industry benchmark.
Read guide
Frequently asked questions
What share of my available hours is billable and how does it compare with my target?
Confirm which hours are genuinely excluded and billable.
Which official source and period does this use?
This market-neutral tool does not use an official local policy rule.
Can I share or save a scenario?
Tool inputs and results stay in this browser. Anonymous categorical usage analytics send only governed page, tool, cluster and action identifiers; tool inputs and results are never sent. Error monitoring is disabled. Optional saved state stays only on this device.
How should I use the calculated result?
Treat the calculated result as one scenario, then verify the input record with the greatest effect on that result.