SparkIQ

Electrical calculators for Australian sparkies

AS/NZS 3000:2018 compliant. Free. Works on your phone on site.

⚡ AS/NZS 3000:2018🇦🇺 Built for Australian sparkies📱 Works offline on site

Calculators

Free

Voltage drop

Check cable sizing meets the 5% maximum voltage drop limit per AS/NZS 3000:2018 Clause 3.6.2

Open calculator
Free

Conduit fill

Calculate conduit fill percentage and check the 40% rule for 3 or more cables per AS/NZS 3000:2018

Open calculator
Coming soon

Cable ampacity

Look up cable current carrying capacity for installation methods.

Coming soon

Box fill

Calculate junction box fill capacity and check compliance.

Coming soon

Conduit bending

Work out offsets, saddles and rolling offsets for conduit runs.

Get notified when new calculators drop

Cable ampacity, box fill, conduit bending — we'll email you the moment they're live. No spam, just new tools.