Data sourced from the U.S. Dept. of Energy, Energy Star, and the EIA.

Free home energy calculators

Every tool gives you an instant result and explains the calculation — no email required and nothing collected.

Energy Bill CalculatorEstimate your yearly electricity cost and potential savings.Solar Savings CalculatorSize a system and see payback from the installed cost.Heat Pump ROI CalculatorCompare running costs vs your current fuel and see payback.Smart Home Cost CalculatorBudget a smart-home setup and estimate the energy savings.