Ceiling Fan Direction Energy Savings Calculator
Ceiling fans let you raise your summer thermostat and lower your winter thermostat by a couple degrees without losing comfort. Enter your home details to estimate the yearly savings from using proper fan direction.
About this calculator
Estimate the annual cooling and heating cost savings from running ceiling fans in the correct seasonal direction.
Frequently Asked Questions
Which direction should ceiling fans spin in summer?
Counterclockwise (when viewed from below) at higher speed creates a cooling breeze that lets you raise the thermostat comfortably.
Which direction in winter?
Clockwise at low speed pushes warm air trapped near the ceiling back down into the living space, letting you lower the thermostat.
Is this estimate exact?
No — actual savings depend on your climate, insulation, ceiling height, and HVAC system, but this gives a reasonable ballpark using typical percent-per-degree assumptions.