BTU/h to HP Conversion Formula:
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The BTU to horsepower conversion allows you to convert British thermal units per hour (BTU/h) to mechanical horsepower (HP). This conversion is commonly used in heating, ventilation, air conditioning (HVAC), and power engineering applications.
The calculator uses the conversion formula:
Where:
Explanation: One mechanical horsepower is approximately equal to 2545 BTU per hour, making this conversion factor standard for power unit conversions.
Details: Accurate power unit conversion is essential for system design, equipment specification, energy efficiency calculations, and comparing performance across different measurement systems in engineering and technical applications.
Tips: Enter BTU per hour value (must be greater than 0). The calculator will automatically compute the equivalent horsepower. For 14,000 BTU/h, the result is approximately 5.5 HP.
Q1: Why is the conversion factor 2545?
A: 2545 BTU/h per horsepower is derived from the definition where 1 HP = 550 foot-pounds per second and the conversion between mechanical work and heat energy.
Q2: Is this mechanical or electrical horsepower?
A: This conversion uses mechanical horsepower (745.7 watts). Electrical horsepower is slightly different at 746 watts.
Q3: How accurate is this conversion?
A: The conversion is mathematically exact based on the defined relationship between BTU and horsepower units.
Q4: Can I use this for air conditioner sizing?
A: Yes, this conversion is commonly used in HVAC to relate cooling capacity (BTU/h) to motor power requirements (HP).
Q5: What's the difference between BTU and BTU/h?
A: BTU is a unit of energy, while BTU/h is a unit of power (energy per unit time). This calculator converts power units.