Part-time and FTE pay
Pro Rata Salary Calculator NZ: Part-Time & FTE Pay
Convert a full-time annual salary into a proportional gross salary for reduced hours, fewer working days or a stated FTE. This tool is intentionally separate from PAYE and take-home-pay calculations.
Reviewed 16 August 2026 · New Zealand dollars · Gross salary only
How do I calculate a pro rata salary?
Multiply the full-time annual salary by the fraction of full-time work. For example, a 0.8 FTE role uses 80% of the full-time salary. You can calculate the fraction from weekly hours, working days or enter the FTE directly.
Your full-time and part-time details
Enter valid positive values. The actual hours/days/FTE must not be more than the full-time amount for this reduced-hours calculator.
Pro rata salary results
Pro rata salary formula
The basic formula is:
If FTE is calculated from hours, the fraction is actual weekly hours divided by full-time weekly hours. If it is calculated from days, the fraction is actual working days divided by full-time working days.
For a full-time salary of $80,000 and a four-day week where full-time is five days, the FTE is 4 ÷ 5 = 0.8. The pro rata annual salary is therefore $80,000 × 0.8 = $64,000.
What this calculator does — and does not — calculate
This tool is for the gross contractual salary proportion. It is useful when a full-time salary is advertised but the role is part-time, when working hours change, or when an employer describes a role as an FTE.
- It does calculate proportional annual, monthly, fortnightly and weekly gross salary.
- It shows the full-time salary's gross hourly equivalent using the entered full-time weekly hours.
- It can show a simple gross part-year amount when you enter weeks worked.
- It does not calculate PAYE, KiwiSaver, student loans or take-home pay.
- It does not calculate annual-leave entitlement, final pay, overtime or employment-agreement entitlements.
For ordinary annual-to-weekly/hourly salary conversion and a quick take-home estimate, use the Salary Calculator NZ. For detailed tax deductions, use the PAYE Calculator NZ.
Part-time salary and FTE examples
| Full-time salary | Work pattern | FTE | Pro rata salary |
|---|---|---|---|
| $70,000 | 30 hours of a 40-hour week | 75% | $52,500 |
| $80,000 | 4 days of a 5-day week | 80% | $64,000 |
| $95,000 | 0.6 FTE | 60% | $57,000 |
These are gross mathematical examples. Employment agreements can define hours, paid breaks and remuneration arrangements differently.
Pro Rata Salary Calculator NZ FAQs
What does pro rata salary mean?
A pro rata salary is a proportional amount of a full-time salary. If a role is 0.8 FTE, a simple pro rata salary is 80% of the equivalent full-time salary.
How do I calculate salary for four days a week?
If full-time is five equal working days, four days is 4 ÷ 5 = 80% FTE. Multiply the full-time annual salary by 0.8. If the daily hours differ, using weekly hours may be more accurate.
How do I calculate FTE from hours?
Divide actual weekly hours by the full-time weekly hours. For example, 24 hours divided by 40 hours is 0.6 FTE, or 60%.
Is an FTE salary the same as take-home pay?
No. FTE and pro rata salary are gross employment figures before tax and other deductions. Use the PAYE calculator for a separate take-home estimate.
Can I use this for part of a year?
Yes, the optional part-year field multiplies the annualised pro rata salary by weeks worked divided by 52. It is only a simple gross earnings illustration and is not a final-pay or leave-entitlement calculation.
Does this calculate annual leave or final pay?
No. Those calculations have different legal and payroll rules. Use the Final Pay Calculator NZ for an end-of-employment estimate.