Green tools

Sustainability Calculators

Estimate carbon footprint, energy savings, solar payback, water savings, and cleaner transport costs.

Estimate annual carbon emissions from driving, flights, home electricity, and natural gas use.

Compare estimated fuel cost, energy cost, and carbon emissions for an electric car versus a gasoline car.

Estimate solar panel payback period from installation cost, yearly production, electricity price, and incentives.

Estimate water and money saved by reducing shower time, fixing leaks, or lowering daily water use.

Estimate monthly and yearly savings from reducing electricity use or improving appliance efficiency.