BTU Calculator for Air Conditioners & HVAC
HVAC engineering tool. Determines required BTU/h (British Thermal Units per hour) to efficiently cool a room based on space dimensions.
Input Parameters
Instant Calculation Result
Adjust values on the left to calculate live results.
In-Depth Guide & Mathematical Methodology
❄️ BTU/h & Ton of Refrigeration Rules
1 Ton of Refrigeration: Equal to 12,000 BTU per hour.
Standard Cooling Rule: ~25 BTU per square foot of living space.
Occupancy: Add 600 BTU for each additional person beyond 2 people.
Frequently Asked Questions (FAQ)
What is the BTU Calculator for Air Conditioners & HVAC and how does it work?
HVAC engineering tool. Determines required BTU/h (British Thermal Units per hour) to efficiently cool a room based on space dimensions.
How do I use this BTU Calculator for Air Conditioners & HVAC?
Enter Room Length (feet). Enter Room Width (feet). Enter Number of Regular Occupants. View Recommended Capacity in BTU/h and equivalent Tons of Refrigeration.
What mathematical formula is used in this calculation?
Base BTU = Area(ft²) * 25 BTU/ft². Occupants Adjustment = max(0, Occupants - 2) * 600 BTU.
Is the BTU Calculator for Air Conditioners & HVAC on FindCalculator free to use?
Yes, all 330+ interactive tools on FindCalculator.online are 100% free, run directly in your browser without registration, and do not store your private calculation data.