Home Back

Boiler Horsepower to kW Calculator by Tons of Concrete

Power Conversion Formula:

\[ P_{kW} = BHP \times 9.81 \]

BHP

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is a Boiler Horsepower to kW Calculator?

Definition: This calculator converts power measurements from boiler horsepower (BHP) to kilowatts (kW).

Purpose: It helps engineers and technicians convert between these common power units used in boiler and heating system specifications.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ P_{kW} = BHP \times 9.81 \]

Where:

Explanation: One boiler horsepower is equal to approximately 9.81 kilowatts.

3. Importance of Power Unit Conversion

Details: Accurate conversion between units ensures proper system specifications, equipment sizing, and international compatibility of technical documents.

4. Using the Calculator

Tips: Simply enter the boiler horsepower value (must be > 0) and the calculator will provide the equivalent power in kilowatts.

5. Frequently Asked Questions (FAQ)

Q1: What is boiler horsepower?
A: A unit of power used to measure boiler output capacity, equal to the energy needed to evaporate 34.5 pounds of water per hour at 212°F.

Q2: How does boiler horsepower differ from mechanical horsepower?
A: Boiler horsepower is about 13% larger than mechanical horsepower (1 BHP ≈ 1.0138 mechanical HP).

Q3: Why is the conversion factor 9.81?
A: This comes from the definition of boiler horsepower in terms of energy per time (1 BHP = 33,475 BTU/h ≈ 9.81 kW).

Q4: When would I need this conversion?
A: When working with international specifications, comparing equipment ratings, or when local regulations require kW measurements.

Q5: Is this conversion exact?
A: The 9.81 factor is standard, but slight variations may exist in different standards or regions.

Boiler Horsepower to kW Calculator© - All Rights Reserved 2025