ElecCalc.au

Free Australian Electrical Calculators

// the problem

Australian electricians need accurate, standards-compliant calculators for cable sizing, voltage drop, maximum demand, and more. Existing tools are either US-focused, behind paywalls, or not compliant with current AS/NZS standards.

// the solution

ElecCalc.au provides 25 free electrical calculators built specifically for Australian electricians, fully compliant with AS/NZS 3008.1.1:2025. It works offline as a PWA, requires no login, and shares its calculator engine with SparkyToolkit.

// core features

25 Calculators

Cable sizing, voltage drop, max demand, conduit fill, circuit breaker sizing, and more.

AS/NZS Compliant

All calculations follow current Australian and New Zealand standards.

Offline PWA

Install on your phone, works without internet on site.

Shared Engine

Same TypeScript calculator engine powers SparkyToolkit and ElecCalc.au.

// tech stack

Next.jsReactTypeScript@ec-build/calculatorsPWAAS/NZS 3008

// from the sey solutions ecosystem