About EnergyWise

Understand everyday electricity costs

EnergyWise is a free home energy toolkit from Crushjs, built in the same family as our other focused calculator sites. It helps you estimate appliance costs, cooling use, utility bills and the tradeoffs of replacing equipment.

Transparent by design

Each tool includes formulas, a worked example, assumptions and a step-by-step breakdown. We use your entered rate; we do not supply live tariffs or claim that example equipment values match your home. Report a calculation or wording issue through our contact page.