AC BTU Calculator
"Calculate the ideal air conditioner size for your room with the Free BTU Calculator. Enter room dimensions and conditions to find the recommended BTU capacity instantly — fast, accurate, and no login required."
❄️ Air Conditioner BTU Calculator — Choose the Right AC Size
Welcome to the Free Air Conditioner BTU Calculator on calculator.cl! This simple tool helps you determine the ideal BTU capacity needed to cool your room effectively. Choosing the correct BTU rating ensures efficient cooling, lower electricity costs, and longer air conditioner lifespan.
Just enter your room size and a few details, and the calculator instantly recommends the appropriate BTU value for your space.
🧠 What Is BTU in Air Conditioning?
BTU (British Thermal Unit) measures how much heat an air conditioner can remove from a room per hour. The higher the BTU rating, the more cooling power the unit has.
Too low BTU: AC runs constantly but doesn’t cool properly
Too high BTU: AC cools too quickly but leaves humidity and wastes energy
Correct BTU: Efficient cooling and comfortable temperature
Selecting the right BTU is essential for comfort and energy efficiency.
🧮 How the Calculator Works
To calculate required BTU:
Enter room length and width
Provide additional factors (if available), such as:
Ceiling height
Sun exposure
Number of occupants
Electronics or appliances
Click Calculate
The tool uses standard HVAC sizing formulas to estimate the cooling capacity required for your space.
📊 Why Correct BTU Size Matters
Choosing the right AC size helps:
Maintain consistent temperature
Reduce electricity consumption
Prevent excess wear on compressor
Improve air circulation
Maintain proper humidity levels
Proper sizing is one of the most important factors when buying an air conditioner.
📍 General BTU Room Size Guide
| Room Size | Recommended BTU |
|---|---|
| Small room (100–200 sq ft) | 5,000–7,000 BTU |
| Medium room (200–400 sq ft) | 8,000–12,000 BTU |
| Large room (400–600 sq ft) | 12,000–18,000 BTU |
| Extra large room | 18,000+ BTU |
Note: Actual needs vary based on insulation, sunlight, ceiling height, and climate.
💡 Tips for Accurate Results
Measure room dimensions carefully.
Add extra capacity if the room receives strong sunlight.
Reduce capacity slightly for shaded rooms.
Kitchens and crowded spaces usually need higher BTU.
⚠️ Important Notes
This calculator gives an estimate — professional HVAC assessment may be needed for precise sizing.
BTU needs may vary depending on insulation quality and local climate conditions.
TO USE THIS TOOL VISIT https://calculator.cl/air-conditioner-btu-calculator/ OR SCAN THE QR CODE .
