Free Marine Electrical Calculators

Free Marine Electrical Calculators
for Marine Electricians

Standards-compliant calculators for marine electricians 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

Marine Electrical Calculators

Dedicated calculators for marine electricians. Bookmark the ones you use most.

Shore power current draw, minimum breaker size and cable cross-section from vessel load. AS/NZS 3004.2.

Minimum cable size for 12V/24V DC circuits. Voltage drop check per AS/NZS 3004.2.