Free Tools
Free Aircon Calculators
Make informed decisions with our free aircon tools. Calculate the right AC size, estimate running costs, or find out which service you need — all in minutes.
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Most Popular BTU Calculator
Calculate the right aircon size for your room based on area, ceiling height, sun exposure, and more.
⏱ < 1 minute
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Energy Cost Estimator
Estimate your monthly electricity bill for running aircon and discover how much you can save with an inverter unit.
⏱ < 1 minute
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Quiz Aircon Service Finder
Answer 5 quick questions to find out which aircon service is right for your situation — from emergency repair to routine maintenance.
⏱ 2–3 minutes
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All tools are free, no sign-up required
Calibrated for Singapore's tropical climate
SP Group electricity rates (SGD)
Based on 18+ years of local experience
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