BTU Calculator
Find Your Perfect Aircond Size
Answer 4 quick questions and we'll recommend the exact HP you need — plus the installation cost. No guesswork, no oversizing.
12 × 10 = 120 sqft
Aircond BTU Calculation Guide & FAQs
✓How to Calculate Aircond Size (Step-by-Step)
- 1
Measure your room's length and width in feet (ft).
- 2
Multiply length x width to calculate the room's area in square feet (sqft).
- 3
Multiply the area by 25 to get the base BTU cooling power required.
- 4
Adjust for room type (e.g. master bedrooms need +10%), sun exposure (west-facing rooms), high ceilings, and occupants.
- 5
Match your final calculated BTU to the required Horsepower (HP): 9,000 BTU is approx. 1.0 HP.
Q:How many square feet can a 1 HP aircond cool?
A 1 HP (Horsepower) aircond is typically suitable for cooling a room size of 100 to 150 square feet. This is ideal for standard bedrooms or study rooms in Malaysia.
Q:What is the perfect room size for a 1.5 HP aircond in Malaysia?
A 1.5 HP aircond is perfect for rooms ranging from 150 to 250 square feet. It is commonly used for larger master bedrooms, small living rooms, or home offices.
Q:How do you calculate BTU for an air conditioner?
The basic formula is Room Length (ft) × Room Width (ft) × 25 BTU. You can adjust this by multiplying for room type (bedrooms need less cooling, kitchens need more), sun exposure (west-facing or top floors need extra BTU), and number of occupants.