Home Back

BTU to HP Air Conditioning Calculator

Horsepower Formula:

\[ HP = \frac{Q}{2545} \]

BTU/h

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is a BTU to HP Air Conditioning Calculator?

Definition: This calculator converts cooling capacity in BTU/h to horsepower for air conditioning systems.

Purpose: It helps HVAC professionals and engineers determine the equivalent horsepower of AC units based on their cooling capacity.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ HP = \frac{Q}{2545} \]

Where:

Explanation: The conversion factor 2545 BTU/h per horsepower comes from the mechanical equivalent of heat.

3. Importance of BTU to HP Conversion

Details: This conversion helps in comparing AC system capacities, sizing equipment, and understanding energy requirements.

4. Using the Calculator

Tips: Enter the cooling capacity in BTU/h. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is 2545 the conversion factor?
A: 1 horsepower equals 2545 BTU/h based on the mechanical equivalent of heat (1 HP = 42.4 BTU/min).

Q2: Is this for all AC systems?
A: Yes, this conversion applies to all air conditioning systems when converting between cooling capacity and mechanical power.

Q3: How accurate is this conversion?
A: This provides a direct mechanical equivalent, but actual system efficiency will vary based on SEER ratings and other factors.

Q4: What's a typical BTU rating for home AC?
A: Residential units typically range from 5,000 BTU/h (window units) to 60,000 BTU/h (whole-house systems).

Q5: How does this relate to electrical power?
A: This shows mechanical cooling power. Electrical input power would be higher due to system inefficiencies.

BTU to HP Air Conditioning Calculator© - All Rights Reserved 2025