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Methodology

Project Fee to Hourly Rate Calculator methodology

Translate a project fee into gross and net rates using the complete entered time commitment.
Duc Nguyen X.By Duc Nguyen X.· Founder, Wage101Last reviewed: View update historyMethodology

Educational only: Work and pay decision support, not tax, legal, financial or career advice.

Privacy: Calculations run locally; Wage101 does not receive your work or pay inputs.

Update policy: Reviewed when formulas or official dependencies change.

Scope: Market-neutral work and pay planning using your own assumptions.

1. Formulas and units

Net hourly rate
netHourlyRate = netFee ÷ totalHours

Where

netHourlyRate
Net hourly rate (currency units/hour)Source: Calculated output
totalHours
Total project hours (hours/project)Source: Calculated output
netFee
Net Fee (currency units/year)Source: Calculated output
Gross hourly rate
grossHourlyRate = projectFee ÷ totalHours

Where

projectFee
Project fee (currency units/project)Source: User assumption
grossHourlyRate
Gross hourly rate (currency units/hour)Source: Calculated output
totalHours
Total project hours (hours/project)Source: Calculated output
Total hours
totalHours = deliveryHours + nonDeliveryHours

Where

deliveryHours
Delivery hours (hours/project)Source: User assumption
nonDeliveryHours
Non-delivery hours (hours/project)Source: User assumption
totalHours
Total project hours (hours/project)Source: Calculated output
Maximum hours
maximumHoursAtTargetRate = netFee ÷ targetHourlyRate

Where

targetHourlyRate
Target hourly rate (currency units/hour)Source: User assumption
maximumHoursAtTargetRate
Maximum hours at target (hours/project)Source: Calculated output
netFee
Net Fee (currency units/year)Source: Calculated output
Rate margin
rateMargin = maximumHoursAtTargetRate − totalHours

Where

totalHours
Total project hours (hours/project)Source: Calculated output
maximumHoursAtTargetRate
Maximum hours at target (hours/project)Source: Calculated output
rateMargin
Hour margin to target (hours/project)Source: Calculated output

Money inputs and outputs use the currency selected in the scenario without changing the canonical methodology. Pay, time, benefits and work-related costs use the units stated beside each input.

2. Worked example

Input assumptions

Test a 12,000 fee with 140 total hours, 1,000 direct costs and a 75 target rate.

Calculation and outputs

Example

Test a 12,000 fee with 140 total hours, 1,000 direct costs and a 75 target rate.

Net hourly rate
78.57 currency units
Gross hourly rate
85.71 currency units
Total project hours
140
Maximum hours at target
146.67
Hour margin to target
6.67

Gross rate, net rate and target hour margin stay separate.

Interpretation

Use net hourly rate only after counting non-delivery time and direct costs.

3. Validation and boundary checks

  • Direct costs cannot exceed the project fee.
  • Total project hours must be positive.
  • Target hourly rate must be positive.

4. Assumptions and source classification

  • All hours are attributable to this project.
  • Direct costs are entered before tax.
  • One target rate applies to all hours.

This calculator has no current policy-data dependency. Its work and pay assumptions are user supplied. Registered family-level regression suites exercise the shared work-logic engine and worked-result reconciliation.

5. Limitations

  • No tax, payment risk, scope change, overhead allocation or market rate is inferred.
  • A positive target margin is not a profit guarantee.
  • Timing of cash collection is excluded.

This is educational decision support, not personalised tax, legal, financial or career advice. Check the treatment of your circumstances under the rules that apply to you and seek qualified advice where appropriate.

6. Update and evidence policy

Registered family-level suites test formula invariants and example reconciliation; the release ledger records that coverage without claiming a separate oracle for every line of public copy. There is no official threshold or benchmark to refresh for this calculator. Work and pay inputs remain user-supplied because they vary by person, job and contract.

Change history

  1. : Initial public release of the Project Fee to Hourly Rate planner and methodology.

Related reading

Use these practical guides to interpret the decision and its assumptions.

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