Home Back

Engine kW to HP Calculator by Tons of Concrete

Horsepower Formula:

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

kW

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is an Engine kW to HP Calculator?

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

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

2. How Does the Calculator Work?

The calculator uses the formula:

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

Where:

Explanation: 1 kilowatt is approximately equal to 1.341 horsepower.

3. Importance of Power Unit Conversion

Details: Different countries and industries use different power units. This conversion is essential for comparing engine specifications internationally.

4. Using the Calculator

Tips: Simply enter the engine power in kilowatts. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 1.341?
A: This is the exact conversion factor between kilowatts and mechanical horsepower (1 kW = 1.34102209 HP).

Q2: Are there different types of horsepower?
A: Yes, this calculator uses mechanical horsepower. Metric horsepower (PS) uses a slightly different conversion (1 kW = 1.35962 PS).

Q3: How accurate is this conversion?
A: The conversion is mathematically exact, though real-world engine performance may vary due to other factors.

Q4: Can I convert HP back to kW?
A: Yes, divide HP by 1.341 to get kW (or multiply by 0.7457).

Q5: Why do some countries use kW while others use HP?
A: kW is part of the metric system (SI units) while HP is traditional in some countries like the US.

Engine kW to HP Calculator by Tons of Concrete© - All Rights Reserved 2025