kW to HP Formula

Horsepower Formula:

\[ HP = P_{kW} \times 1.341 \]

Horsepower: HP

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1. What is kW to HP Conversion?

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

Purpose: It helps engineers, mechanics, and automotive professionals convert between these common power units.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ HP = P_{kW} \times 1.341 \]

Where:

\( HP \) — Horsepower
\( P_{kW} \) — Power in kilowatts

Explanation: 1 kilowatt is approximately equal to 1.341 horsepower.

3. Importance of Power Unit Conversion

Details: Different industries use different power units - electrical systems typically use kW while mechanical systems often use HP.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What's the exact conversion factor?
A: 1 kW = 1.34102209 HP (mechanical) or 1.35962162 HP (metric)

Q2: Why are there different horsepower types?
A: Mechanical HP (550 ft-lb/s) is used in US/UK, while metric HP (75 kgf-m/s) is used in Europe.

Q3: When would I need this conversion?
A: When comparing engine power (HP) to electric motor ratings (kW), or working with international specifications.

Q4: How precise is this conversion?
A: The 1.341 factor is precise enough for most practical applications.

Q5: Can I convert HP back to kW?
A: Yes, divide HP by 1.341 or use our HP to kW calculator.