Air conditioner electricity cost calculator
Estimate AC running cost with compressor duty cycle, daily runtime, seasonal usage, currency, and your local electricity tariff.
Transparent method
The calculation
AC cost = rated kW × scheduled hours × active-runtime share × tariffAir conditioners cycle or modulate, so scheduled hours alone overstate energy use. The active-runtime input represents average compressor load across the operating window.
Read the full methodology →Sensitivity check
Run three scenarios.
01
Mild conditionsTry a 35% active-runtime assumption.
02
Typical coolingStart near 55% and adjust for your room.
03
Hot or humidTest 75% when the compressor works much harder.
Use the result well
What can change the answer?
- Climate, insulation, room size, sun exposure, and set point materially change runtime.
- Rated input may differ from average inverter consumption.
- Use a meter or manufacturer app for stronger evidence.