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AC Energy Cost Estimator

Estimate your monthly TNB bill from running air conditioning

Using TNB domestic tariff (tiered: RM 0.218–0.571/kWh depending on usage)

TNB tiered rates based on domestic tariff schedule. Actual bills may vary with other household usage, surcharges, and tax.

TNB Bill Calculator

AC Energy Cost Estimator

Find out exactly what your air conditioner costs to run every month — using real TNB tariff rates.

TNB Domestic Tariff 2024

First 200 kWh RM 0.218 / kWh
201–300 kWh RM 0.334 / kWh
301–600 kWh RM 0.516 / kWh
601–900 kWh RM 0.546 / kWh
Above 900 kWh RM 0.571 / kWh

Source: TNB domestic schedule (residential). Commercial rates differ.

Inverter vs Non-Inverter

A 5-star inverter aircond typically uses 25–35% less electricity than an equivalent non-inverter unit. Over 5 years, the electricity savings usually exceed the price difference. If your unit is more than 8 years old, upgrading often pays for itself.

Dirty Coils Cost You More

A dirty evaporator coil forces your compressor to work harder, increasing electricity consumption by up to 15–20%. A proper chemical wash removes built-up grease and bacteria from the coil — restoring efficiency and reducing your bill.

Tips to Reduce Your AC Bill

  • Set thermostat to 24–26°C (not 16°C) — most bodies are comfortable at this range
  • Use a timer to turn off the AC 30 minutes before you wake up
  • Service your unit every 6–12 months to maintain efficiency
  • Close doors and windows when AC is running
  • Consider inverter technology if your unit is 8+ years old