About PowerVoltEdge

Free electrical calculators built for UK electricians and apprentices.

PowerVoltEdge started as the set of tools I wanted while studying for my City & Guilds Level 2 in Electrical Installation: quick answers on a phone, with the formula and a worked example underneath so you can see how the number was reached.

Every calculator follows BS 7671 (18th Edition, Amendment 4). More tools and revision material are on the way.

Spotted a mistake or want a calculator added? Email contact@powervoltedge.co.uk.