Free Aircon Calculators &
Service Tools
Instant estimates — no sign-up required. Built for Singapore homes and businesses.
BTU Calculator
Find out exactly how many BTUs you need to cool your room. Singapore tropical climate adjustment included.
⏱ Takes < 1 min
Energy Cost Estimator
Estimate your monthly electricity bill for running an aircon unit. Based on SP Group tariff rates.
⏱ Takes < 1 min
Aircon Service Finder
Not sure which service you need? Answer 5 quick questions and get a personalised recommendation.
⏱ Takes 2–3 min
Why trust Coolbest's calculators?
Singapore
Specific settings — tropical climate, metric units, SGD pricing
18+ Years
Formulas validated by licensed technicians with 18+ years' experience
100% Free
No sign-up, no hidden fees. Results shown instantly.
Need a Professional Opinion?
Our calculators give good estimates — but nothing beats a technician's eyes on your unit. Same-day availability across the West Region.
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