Tonnage Calculator
Determine the perfect air conditioner size for your room based on dimensions, orientation, and other key factors.
Room Dimensions
Room Orientation
Floor & Insulation
Windows & Occupancy
Recommended AC Tonnage
Based on your room specifications
1 Ton
Up to 100-120 sq ft
1.5 Ton
Up to 150-180 sq ft
2 Ton
Up to 200-240 sq ft
Impact Factors
About Tonnage Calculator
What is Tonnage?
In air conditioning, a "ton" refers to the amount of heat required to melt one ton of ice in 24 hours. This is equivalent to 12,000 BTU per hour.
A 1.5-ton air conditioner can remove enough heat to melt 1.5 tons of ice in a day. The larger your room, the more cooling capacity (tonnage) your AC needs.
Key point: Choosing the correct tonnage is essential for energy efficiency and optimal cooling performance.
How to Use This Calculator
Follow these steps to determine the right AC size for your room:
- Enter room dimensions - Length, width, and height in feet
- Select room orientation - Which direction your room faces
- Choose floor level - Ground, middle, or top floor
- Specify insulation quality - Good, average, or poor
- Add windows and occupants - These affect cooling load
- Check additional factors - Electronics, kitchen adjacency, sunlight
- Click "Calculate Required Tonnage" - Get your recommended AC size
Why Correct Tonnage Matters
Undersized AC (Low Tonnage): Will run continuously, struggle to cool the room, increase electricity bills, and wear out faster.
Oversized AC (High Tonnage): Will cool too quickly without removing humidity, leading to a clammy feeling and frequent on/off cycling that wastes energy.
Correctly Sized AC: Maintains comfortable temperature and humidity, runs efficiently, saves energy, and lasts longer.