Aircon BTU size calculator

Find out roughly what cooling capacity (BTU) your room needs before you get quotes for a new unit. Undersized units run constantly and cost more to operate, while oversized units waste money upfront.

Recommended cooling capacity

8,000 - 9,500 BTU

This is a rule-of-thumb BTU figure; a contractor will confirm the exact size based on ceiling height, insulation and window area.

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Your calculator details and estimate are included with your request, so contractors can quote your specific job. Add your location, timeline, and contact details to proceed.

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Enquiries submitted through this site's contact forms may be passed to partner providers who can carry out the work. We may receive a referral fee for these introductions, but our rankings and scores are based solely on our published scoring method and are never influenced by referral fees.

Get quotes from top-rated air conditioning contractors

Ranked by our published rubric from recent Google reviews, weighted by relevance to this service (the same order as the category page).

Repair.sg Handyman Singapore
5.0(2817) 95
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AR Contractor Pte Ltd (Best Painting & Aircon Service Provider in Singapore)
5.0(430) 94
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LM Brothers Aircond Pte Ltd
5.0(458) 94
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YS A-Cool Pte Ltd
5.0(284) 94
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Cool Aircon
5.0(281) 94
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