Free Refrigeration Calculators

Free Refrigeration Calculators
for Refrigeration Technicians

Standards-compliant calculators for refrigeration technicians in NZ & Australia. Free, no signup required. Works on mobile.

Trade

Country

🇳🇿 New Zealand🇦🇺 Australia

Typical Electrician rate: NZD $85–$130/hr excl. GST (15%)

Desired annual take-home (NZD)

Income tax rate (%)

Check IRD for your bracket.

Billable weeks per year

Billable hours per week

Target profit margin (%)

10–20% is typical for a sole trader.

Total annual overhead

Refrigeration Calculators

Dedicated calculators for refrigeration technicians. Bookmark the ones you use most.

Cold rooms, freezers, display cases and wine cellars. Recommended compressor size in kW.

Coefficient of performance and EER with industry benchmarks and annual running cost.