HP to KW

Convert horsepower to kilowatts with configurable decimal precision

Enter horsepower and convert with 1 hp = 0.745699871582 kW.

Example Results

1 examples

Convert engine output into kilowatts

Translate 100 horsepower into the equivalent kilowatt rating

{
  "result": {
    "horsepower": 100,
    "kilowatts": 74.57
  }
}
View input parameters
{ "horsepower": 100, "precision": 4 }

Key Facts

Category
Math, Date & Finance
Input Types
number
Output Type
json
Sample Coverage
1
API Ready
Yes

Overview

Quickly convert horsepower (HP) to kilowatts (kW) using the standard conversion factor of 1 hp = 0.745699871582 kW. This tool allows you to input any horsepower value and customize the decimal precision of the output, making it ideal for automotive, mechanical, and electrical engineering calculations.

When to Use

  • •When comparing engine specifications across international standards that use different power units.
  • •When calculating electrical load requirements for industrial motors rated in horsepower.
  • •When drafting technical datasheets or user manuals that require precise power conversions.

How It Works

  • •Enter the horsepower value you want to convert into the input field.
  • •Specify the desired decimal precision between 0 and 10 places.
  • •The tool multiplies the horsepower by 0.745699871582 and outputs the result in JSON format.

Use Cases

Converting vehicle engine horsepower to kilowatts for official registration documents.
Translating industrial pump motor ratings from HP to kW for electrical panel sizing.
Standardizing power metrics in academic physics reports and engineering documentation.

Examples

1. Converting Car Engine Output

Automotive Journalist
Background
An automotive journalist is writing a review for a sports car and needs to present the engine power in kilowatts for international readers.
Problem
The manufacturer spec sheet only lists the engine output as 450 horsepower.
How to Use
Input 450 in the horsepower field and set the decimal precision to 2.
Example Config
horsepower: 450, precision: 2
Outcome
The tool outputs a JSON result showing 335.56 kilowatts.

2. Industrial Motor Specification Alignment

Electrical Engineer
Background
An engineer is designing a factory power distribution system and needs to calculate the total kilowatt load of several imported 15 HP water pumps.
Problem
The pump motors are rated in horsepower, but the electrical panel capacity is calculated in kilowatts.
How to Use
Input 15 in the horsepower field and set the precision to 4 for high accuracy.
Example Config
horsepower: 15, precision: 4
Outcome
The tool outputs a JSON result showing 11.1855 kilowatts per pump.

Try with Samples

math-&-numbers
Web Image Processing Python Samples
Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
task convert
sample

Related Hubs

Audio Encoding and Format Conversion Tools
Compare audio format conversion, bitrate changes, sample-rate conversion, codec swaps, and export tools in one hub for delivery and archive workflows.
Image Format Conversion and Animated Export Tools
Compare image format converters for JPG, PNG, GIF, AVIF, WebP, TIFF, ICO, base64, and animation-friendly exports in one hub.
JSON Interchange and Format Translation Tools
Compare JSON conversion tools for CSV, YAML, TOML, GraphQL, XML, Markdown, Excel, BSON, EDN, and related structured formats in one hub.
Color Space Conversion Tools for Web and Print
Curated tools for web-to-print color space conversion in one hub.

FAQ

What conversion factor is used for HP to kW?

The tool uses the standard conversion factor of 1 horsepower = 0.745699871582 kilowatts.

Can I adjust the decimal precision of the output?

Yes, you can configure the decimal precision anywhere from 0 to 10 decimal places.

Does this tool support electrical horsepower?

This tool uses the standard mechanical/metric horsepower conversion. Electrical horsepower differs slightly (approximately 746 watts).

What is the default decimal precision?

The default precision is set to 4 decimal places if no value is specified.

Is there a limit to the horsepower value I can enter?

No, you can enter any positive number, including decimal values, to perform the conversion.

API Documentation

Request Endpoint

POST /en/api/tools/hp-to-kw

Request Parameters

Parameter Name Type Required Description
horsepower number Yes -
precision number No -

Response Format

{
  "key": {...},
  "metadata": {
    "key": "value"
  },
  "error": "Error message (optional)",
  "message": "Notification message (optional)"
}
JSON Data: JSON Data

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-hp-to-kw": {
      "name": "hp-to-kw",
      "description": "Convert horsepower to kilowatts with configurable decimal precision",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=hp-to-kw",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

If you encounter any issues, please contact us at [email protected]