Blog
What Size Aircon Do I Need for My Room?
What Size Aircon Do I Need for My Room?
Choosing the right air conditioner size isn’t just about picking the biggest one you can afford. It’s about finding the perfect match for your room size, usage, and even how much sunlight comes in. Get it wrong, and you could end up with an inefficient, noisy, or short-lived unit.
If you’re in Singapore and want to beat the heat efficiently, here’s how to size your aircon right.
🔢 Step 1: Know Your Room Size
Measure your room’s length and width in meters, then multiply them to get the total area in square meters (m²).
Example:
A bedroom that’s 4m x 5m = 20m²
🌡️ Step 2: Understand BTUs (cooling capacity)
Aircon power is usually measured in BTUs (British Thermal Units). The higher the BTU, the more powerful the unit.
Here’s a basic guide for Singapore homes:
| Room Size | Recommended BTU |
|---|---|
| Up to 15m² | 9,000 BTU |
| 16m² – 25m² | 12,000 BTU |
| 26m² – 35m² | 18,000 BTU |
| 36m² – 50m² | 24,000 BTU |
🛠️ Note: For HDB flats, condos, or landed properties in Singapore, room layout and ceiling height may vary—custom recommendations work best.
☀️ Extra Factors to Consider in Singapore:
-
Sunlight: West-facing units get strong afternoon sun. You may need extra cooling.
-
Ceiling Height: Especially in condos or newer builds—higher ceilings = more cooling needed.
-
People in the Room: Add 600 BTU per additional person (e.g. shared bedrooms or offices).
-
Heat from Appliances: Computers, ovens, or other electronics also add to the cooling load.
🚫 Why Bigger Isn’t Always Better
Oversizing can lead to:
-
Short cycling (turning on/off frequently)
-
Higher energy bills
-
Poor humidity control (room feels cold but sticky)
✅ Air+Med’s Pro Tip:
Don’t guess—ask us! Our team at Air+Med Pte Ltd offers free onsite assessments in Singapore. We’ll calculate your exact cooling needs based on your space and lifestyle.
📞 Ready to Find the Perfect Aircon?
Let Air+Med Pte Ltd help you choose, size, and install the ideal system for your home or office in Singapore.
✅ Expert advice
✅ Reliable brands
✅ Fast, professional installation
📍 Serving all across Singapore
📞 Call us or WhatsApp today to book your free assessment!
+65 8846 0618 / 8846 0628
