# Free BTU Calculator — Find the Right AC Size | iCare Aircon

> Calculate exactly how many BTUs you need to cool your room. Singapore tropical climate (25% uplift) applied automatically. Free AC sizing tool from iCare Aircon.

URL: https://coolbestaircon.com/tools/btu-calculator/

Free Tool

# BTU Calculator

Enter your room dimensions to find the right aircon size. Singapore tropical climate (25% cooling uplift) applied automatically.

Room Length (m)

Room Width (m)

Ceiling Height2.4 m (Standard HDB)2.7 m3.0 m (High ceiling)3.5 m+ (Very high)

Sun ExposureNorth-facing / ShadedPartial Sun (East / South)West-facing / Full Sun

Room TypeBedroomLiving / Dining RoomKitchenHome Office / Study

Number of People1 person2 people3–4 people5+ people

Room area: **16.0 m²** · Singapore tropical climate adjustment applied

## How BTU Sizing Works

1

Measure Your Room

Length × Width in metres gives the room area (m²).

2

Apply Adjustments

Sun exposure, ceiling height, room type, and occupants affect the load.

3

Get Your Recommendation

The calculator returns BTU and the recommended tonnage for Singapore's climate.

Singapore Note

The standard formula uses 500 BTU/m². In Singapore's tropical climate, a 25% uplift is applied (500 × 1.25 = 625 BTU/m²) because temperatures stay high year-round and humidity increases the cooling load significantly.

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