KilowattKit

Free home energy calculators — no signup needed

1 votes·1 comment·May 21, 2026

About

KilowattKit offers 29 free home energy calculators for electricity bills, solar payback, EV charging, and appliances. Powered by official data from EIA, Ofgem, and AER. Every formula shown, every source cited. No email or signup required. Works for US, UK, Canada & Australia.