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Detailed comparison

Inverter AC vs fixed-speed AC running cost

Compare an inverter and fixed-speed air conditioner using realistic input power, runtime, compressor cycling, and the same tariff.

AC

Air conditioner

Estimated monthly cost$42.24211 kWh · 72% typical load
AC

Air conditioner

Estimated monthly cost$66.77334 kWh · 72% typical load

At these inputs, Air conditioner costs approximately $24.53 less per month.

This is an operating-cost comparison, not a statement of equivalent comfort, capacity, cooking result, or product quality.
Interpret the result

What makes this a fair comparison?

Set the inverter side to its average input during a representative session. For the fixed-speed side, use rated input and a realistic compressor on-time. Product labels alone cannot predict weather, insulation, room size, or thermostat behavior.

Wattwise reports energy and operating cost only. Purchase price, capacity, comfort, maintenance, expected life, and repairability belong in a replacement-payback scenario.