All calculators

Each tool targets one question. Pick one to get started.

Convert electricity use in kilowatt-hours to carbon emissions.

Estimate emissions from distance driven in a car.

Turn fuel burned into kilograms of CO₂.

Convert home heating gas use into emissions.

Compare the carbon cost of flying against taking the train.

Compare running costs and emissions of electric vs petrol cars.

Estimate savings and payback time for a solar install.