Aircon BTU Calculator for Malaysian Rooms
Enter your room length, width and how many people use it — the required BTU appears instantly.
BM: Kalkulator BTU aircond — masukkan panjang dan lebar bilik untuk kapasiti penyejukan yang sesuai.·中文: 空调 BTU 计算器——输入房间长宽，计算所需制冷量。
- Base
- 25 BTU / sq ft
- Per extra person
- +600 BTU
- Time to finish
- Under 1 minute
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Aircon BTU Calculator
How many BTU does my room need?
A rough estimate is 25 BTU per square foot plus 600 BTU for each additional person beyond two. A 12×12 ft room with two people needs about 3,600 BTU per hour of base cooling before sun and ceiling adjustments.
- Room area to BTU
- Occupancy adjustment
- BTU to HP conversion
- Cooling capacity planning
How to use the Aircon BTU Calculator
- 01
Enter length and width
Enter the room dimensions in feet to get the floor area.
- 02
Set the occupancy
Add how many people regularly use the room — each extra person adds cooling load.
- 03
Read the BTU
The required BTU appears instantly, with a link to the matching aircon service page.
2026 price list behind every estimate
Minimum starting prices for servicing each cooling capacity. Final cost is confirmed after inspection.
| Scope | Published rate | Notes |
|---|---|---|
| Up to 9,000 BTU | From RM 129 | Small rooms |
| 9,000–12,000 BTU | From RM 129 | Bedrooms |
| 12,000–18,000 BTU | From RM 156 | Living rooms |
| 18,000+ BTU | From RM 195 | Large spaces |
This is an estimated price only. Final quotation will be provided after inspection or after confirming project details.
See the full 2026 price guideAircon BTU Calculator — common questions
What is a BTU?
A BTU (British Thermal Unit) measures cooling capacity. Higher BTU means the aircon can cool a larger or hotter space.
How do I convert BTU to horsepower?
Roughly 9,000–12,000 BTU equals 1 HP. The size calculator converts between the two for you.
Does room occupancy affect BTU?
Yes. Each person adds body heat, so busy rooms need more cooling capacity.
Is the BTU result final?
No, it is an estimate. Sun, ceiling height and insulation also affect the real requirement.
Try another estimator
Prefer to talk it through?
Send us photos on WhatsApp and our dispatch desk will confirm the itemised fixed-price quote before any work begins.
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