Aircon Running Cost Estimator
Calculate your monthly electricity cost and see how much an inverter aircon could save you.
SP Group regulated tariff ~S$0.28/kWh (2024)
How the Estimate Works
The calculator uses the formula: (Wattage × Efficiency × Hours × Days) ÷ 1000 × Rate.
The default SP Group regulated tariff is S$0.28/kWh (2024). If you're on the Open Electricity Market, your rate may be lower.
Inverter aircons use a variable-speed compressor that consumes ~30% less electricity than standard units at the same cooling capacity.
Typical Monthly Costs in Singapore
Based on S$0.28/kWh tariff, 30 days/month.
Reduce Your Bills
A dirty aircon uses more electricity to cool the same space. Regular servicing restores efficiency — often cutting running costs by 10–15%.
Ask About Efficiency ServicingEnergy Cost — Frequently Asked Questions
Is an inverter aircon really worth the higher upfront cost in Singapore? ▼
In Singapore's climate where aircons run 6–10 hours daily, yes. A 1.5HP inverter vs standard costs roughly S$150–250 more upfront but saves S$12–18/month on electricity. The payback period is typically 12–18 months. Over 10 years, you save S$1,500–2,000.
Why is my electricity bill higher than the estimate? ▼
Several factors: your unit may have dirty coils reducing efficiency (book a service), refrigerant may be low causing longer run cycles, the compressor or capacitor may be faulty, or your actual usage may exceed the estimated hours. A diagnostic visit can identify energy waste.
What's the current SP Group electricity rate? ▼
SP Group's regulated tariff for residential consumers changes quarterly. As of 2024 it's approximately S$0.28/kWh all-in. Check sp.sg for the current rate. If you're on the Open Electricity Market, your contracted rate may differ.
Does servicing really reduce electricity usage? ▼
Yes — a clean evaporator coil transfers heat efficiently; a fouled coil forces the compressor to work harder and run longer. Studies show a well-maintained unit uses 5–15% less electricity than a dirty one. In Singapore's humidity, coils foul within 3–6 months of heavy use.
Cut Your Aircon Electricity Bill
A clean, well-serviced aircon is an efficient one. Book a service and we'll restore performance.