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
Comparing actual full-time and part-time packages without assuming linear scaling.
Outputs
Annual and hourly value differences, plus part-time salary needed for parity.
Start here
Enter actual hours, pay and benefits for both schedules.
- Close-intent boundary
- Do not use this to calculate proportional gross salary alone; use Part-Time Salary Equivalent Calculator for that conversion.
Compare offers and work arrangements
Full-Time vs Part-Time: annual and hourly value differences
Annual and hourly value differences, plus part-time salary needed for parity.
Full-time and part-time scenarios
Enter the actual pay, benefits, hours and costs for each schedule.
Your numbers stay in this browser
Gross annual base pay for full-time role.
Paid hours per week for full-time role.
Gross annual base pay for part-time role.
Paid hours per week for part-time role.
Commute and direct-cost assumptionsOpen the assumptions you are less likely to change on every comparison.
Expected annual variable pay for full-time role.
Annual value you assign to full-time role benefits.
Additional work-related hours per week for full-time role.
Working weeks per year for full-time role.
Round-trip commute minutes per commute day for full-time role.
Commute days per week for full-time role.
Annual direct costs of doing full-time role work.
Expected annual variable pay for part-time role.
Annual value you assign to part-time role benefits.
Additional work-related hours per week for part-time role.
Working weeks per year for part-time role.
Round-trip commute minutes per commute day for part-time role.
Commute days per week for part-time role.
Annual direct costs of doing part-time role work.
Calculated result
The annual-value trade-off stays separate from the committed-time hourly comparison.
Use one currency consistently across all inputs.
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 scenario-39,000.00Baseline
Part-time role annual base pay: 50,400.00 currency units-36,600.002,400.00
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.
Part-time annual value difference
Part-time annual value difference
netAnnualValueDifference = secondNetAnnualWorkValue − firstNetAnnualWorkValue-39,000.00 currency unitsResult-39,000.00 currency units
Part-time net annual work value minus full-time value. Displayed using the engine-rounded value.
Part-time annual value difference formula →Part-time hourly value difference
Part-time hourly value difference
effectiveHourlyDifference = secondNetAnnualWorkValue ÷ secondAnnualCommittedHours − firstNetAnnualWorkValue ÷ firstAnnualCommittedHours-2.98 currency unitsResult-2.98 currency units
Part-time minus full-time effective value per committed hour. Displayed using the engine-rounded value.
Part-time hourly value difference formula →Part-time base pay for hourly parity
Part-time base pay for hourly parity
requiredSecondBasePayToMatchFirstHourly = max(0, firstEffectiveHourlyValue × secondAnnualCommittedHours + secondAnnualDirectWorkCosts − secondAnnualVariablePay − secondAnnualBenefitsValue)51,894.44 currency unitsResult51,894.44 currency units
Part-time base pay needed to match full-time effective hourly value. Displayed using the engine-rounded value.
Part-time base pay for hourly parity formula →Part-time net annual work value
Part-time net annual work value
secondNetAnnualWorkValue = secondAnnualBasePay + secondAnnualVariablePay + secondAnnualBenefitsValue − secondAnnualDirectWorkCosts50,000.00 currency unitsResult50,000.00 currency units
Part-time compensation less entered direct work costs. Displayed using the engine-rounded value.
Part-time net annual work value formula →Inputs used
- Full-time role annual base pay
- 80,000.00 currency units
- Full-time role annual variable pay
- 4,000.00 currency units
- Full-time role annual benefits
- 8,000.00 currency units
- Full-time role paid hours
- 40
- Full-time role additional unpaid hours
- 2
- Full-time role weeks per year
- 48
- Full-time role commute minutes
- 45
- Full-time role commute days
- 4
- Full-time role annual direct work costs
- 3,000.00 currency units
- Part-time role annual base pay
- 48,000.00 currency units
- Part-time role annual variable pay
- 0.00 currency units
- Part-time role annual benefits
- 4,000.00 currency units
- Part-time role paid hours
- 24
- Part-time role additional unpaid hours
- 1
- Part-time role weeks per year
- 48
- Part-time role commute minutes
- 45
- Part-time role commute days
- 3
- Part-time role annual direct work costs
- 2,000.00 currency units
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 |
|---|---|---|---|---|---|
| firstAnnualBasePay | Gross annual base pay for full-time role. | currency units/year | 0.01 to 100000000 | Required | 80000 |
| firstAnnualVariablePay | Expected annual variable pay for full-time role. | currency units/year | 0 to 100000000 | Required | 4000 |
| firstAnnualBenefitsValue | Annual value you assign to full-time role benefits. | currency units/year | 0 to 100000000 | Required | 8000 |
| firstPaidHoursPerWeek | Paid hours per week for full-time role. | hours/week | 0.5 to 120 | Required | 40 |
| firstAdditionalUnpaidHoursPerWeek | Additional work-related hours per week for full-time role. | hours/week | 0 to 80 | Required | 2 |
| firstWeeksPerYear | Working weeks per year for full-time role. | weeks/year | 1 to 53 | Required | 48 |
| firstRoundTripCommuteMinutesPerDay | Round-trip commute minutes per commute day for full-time role. | minutes/day | 0 to 600 | Required | 45 |
| firstCommuteDaysPerWeek | Commute days per week for full-time role. | days/week | 0 to 7 | Required | 4 |
| firstAnnualDirectWorkCosts | Annual direct costs of doing full-time role work. | currency units/year | 0 to 100000000 | Required | 3000 |
| secondAnnualBasePay | Gross annual base pay for part-time role. | currency units/year | 0.01 to 100000000 | Required | 48000 |
| secondAnnualVariablePay | Expected annual variable pay for part-time role. | currency units/year | 0 to 100000000 | Required | 0 |
| secondAnnualBenefitsValue | Annual value you assign to part-time role benefits. | currency units/year | 0 to 100000000 | Required | 4000 |
| secondPaidHoursPerWeek | Paid hours per week for part-time role. | hours/week | 0.5 to 120 | Required | 24 |
| secondAdditionalUnpaidHoursPerWeek | Additional work-related hours per week for part-time role. | hours/week | 0 to 80 | Required | 1 |
| secondWeeksPerYear | Working weeks per year for part-time role. | weeks/year | 1 to 53 | Required | 48 |
| secondRoundTripCommuteMinutesPerDay | Round-trip commute minutes per commute day for part-time role. | minutes/day | 0 to 600 | Required | 45 |
| secondCommuteDaysPerWeek | Commute days per week for part-time role. | days/week | 0 to 7 | Required | 3 |
| secondAnnualDirectWorkCosts | Annual direct costs of doing part-time role work. | currency units/year | 0 to 100000000 | Required | 2000 |
Full-Time vs Part-Time: annual and hourly value differences
Use the annual trade-off alongside effective hourly value and the actual schedule.
Formula summary
- Primary formula
- netAnnualValueDifference = secondNetAnnualWorkValue − firstNetAnnualWorkValue
Data used here
- The estimate uses your inputs and the work-value formula documented in the methodology.
Decision checks
Act on the result
Confirm whether benefits or costs change when weekly hours change.
Stress-test the decision
Retest weekly hours and benefit values rather than scaling them automatically.
When this estimate can be misleading
- Career progression and schedule flexibility are not valued.
- Benefits may not scale linearly with hours.
- Local part-time protections are outside the calculation.
- Use the annual trade-off alongside effective hourly value and the actual schedule.
Educational estimate, not advice. See all assumptions & limitations →
Related reading
Use these practical guides to interpret the decision and its assumptions.
- How to compare full time vs part time decisions
Compare full-time and part-time scenarios without assuming hours, benefits or costs scale equally.
Read guide
Frequently asked questions
How do actual full-time and part-time packages compare after time and costs?
Confirm whether benefits or costs change when weekly hours change.
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.
What should stay consistent when I compare the options?
Keep the time basis, units and included costs consistent across options, then verify the assumptions that create the largest difference.