Public vs Private Surgery Calculator
Compare the financial cost of waiting for public elective surgery vs paying for private. Factors in productivity loss and 5-year health insurance premiums.
About this calculator
This calculator implements NZ elective surgery wait times + private cost estimates from Te Whatu Ora + Policywise. Last consulted 18 May 2026. Verify the figures yourself by following the link.
NZ elective surgery costs & wait times
Te Whatu Ora Jan 2025 + Policywise 2026- •Hip replacement private: ~$28,000
- •Knee replacement private: ~$26,500
- •Cataract (one eye) private: ~$4,800
- •Public wait >4 months (Jan 2025): 37,000+ patients
- •Typical hip wait public: 6-18 months
- •Health insurance premium (45yo couple): ~$300-450/mo
Source: Te Whatu Ora — Wait times
Disclaimer
This calculator provides estimates for general information purposes only. Results are based on standard formulas and may not reflect your individual circumstances. Always consult a qualified professional for advice specific to your situation.
How public vs private surgery cost compares
Net financial cost = (private upfront cost) vs (productivity loss during public wait + insurance premiums).
- 1
Private upfront cost
Private = procedure_cost (hip ~$28k, knee ~$26k, cataract ~$4.8k)
Out-of-pocket or via health insurance.
- 2
Public wait cost
Public_cost = monthly_income × productivity_loss_% × wait_months
Lost productivity (e.g. 30%) for the wait period.
- 3
Insurance premium cost
Insurance = monthly_premium × 60 (5-year amortised)
Compare 5-year premium total to one-off private cost.
- 4
Decision rule
Go_private if public_cost > private_cost
Plus quality-of-life considerations (not in formula).
Worked example
Inputs: Hip private $28k, public wait 12mo, $6k/mo income, 30% productivity loss
Result: Public cost = $6,000 × 30% × 12 = $21,600. Private = $28,000. Public ($21.6k) < Private ($28k) — wait it out.
Frequently Asked Questions
How long are NZ public elective surgery waits?
When is health insurance worth it in NZ?
Which conditions are NOT covered by NZ public health?
Are pre-existing conditions ever covered by NZ health insurance?
How this calculator works
This public vs private surgery calculator uses the latest data from official New Zealand government sources to provide accurate results. All calculations are performed in your browser — your data never leaves your device.
All calculations are performed in your browser — your data never leaves your device. Results are for general guidance only and should not be considered professional financial advice.
Built and maintained by Konstantin Iakovlev. Data sourced from the IRD and official New Zealand government sources.
Last reviewed: