AC Energy Cost Estimator
Find out exactly how much your aircond costs to run each month. Uses TNB's actual tiered tariff rates for accurate Malaysia-specific results.
TNB Domestic Tariff (2024)
Using TNB tiered domestic tariff (RM0.218–0.571/kWh)
Ways to Reduce Your AC Running Costs
Service Every 3–6 Months
A dirty coil can increase energy consumption by 15–30%. Regular chemical wash restores peak efficiency.
Book Chemical Wash →Set Temperature to 24–26°C
Every degree below 25°C increases energy consumption by about 3–5%. Setting 26°C instead of 22°C can save significantly.
Use a Programmable Timer
Set the AC to turn off 30 minutes before you wake up or leave the room. Simple habit saves hours of unnecessary running.
Upgrade to Inverter Technology
Inverter ACs use 30–50% less electricity than standard units. At RM97+/month for a standard unit, payback in 2–4 years.
Explore Installation →Frequently Asked Questions
Why does my electricity bill spike when I use the aircond more?
Malaysia's TNB uses tiered pricing — the more electricity you use in a month, the higher the rate per unit. The first 200 kWh costs RM0.218/kWh, but usage above 300 kWh costs RM0.516/kWh. A dirty, inefficient aircond running extra hours can push you into a higher billing tier.
How much can regular servicing reduce my electricity bill?
A clean aircond coil transfers heat more efficiently, so the compressor works less. Studies show a dirty coil can increase energy consumption by 15–30%. Many customers notice a lower TNB bill after a chemical wash. We recommend servicing every 3–6 months for optimal efficiency.
Is an inverter aircond worth the extra cost in Malaysia?
Yes, especially if you run your AC for more than 4–6 hours a day. Inverter ACs modulate compressor speed instead of switching on and off, reducing electricity consumption by 30–50% vs. standard units. The payback period in Malaysia is typically 2–4 years depending on usage.
What electricity rate should I use for this calculator?
The calculator defaults to TNB's tiered domestic tariff, which is the most accurate for most households. If your property uses commercial tariffs (kedai, office), switch to the flat rate option and enter your actual rate from your TNB bill.