Horsepower to Electric Horsepower

Convert Horsepower to Electric Horsepower instantly. Quick and accurate power conversion for electrical, mechanical, and HVAC applications.

What is the hp → ehp Converter?

This tool converts Horsepower (hp) to Electric Horsepower (ehp) quickly and accurately. Whether you work with motors, appliances, HVAC systems, or engineering specs, it gives you instant, reliable results right in your browser.

Conversion factor: 1 hp = 0.9996 ehp. Multiply any hp value by 0.9996 to get ehp.

Understanding the Units

Horsepower (hp)

Mechanical horsepower used in the US and UK. Equal to 745.7 watts. Standard for rating vehicle engines and industrial motors.

Electric Horsepower (ehp)

Exactly 746 watts. Used specifically for rating electric motors, particularly in North American standards.

Common Applications

Automotive

Compare vehicle engine power ratings across regions and standards.

Industrial Motors

Convert motor specs for pumps, compressors, and machinery.

Electrical Sizing

Match motor horsepower to electrical and HVAC requirements.

How to Use

Converting hp to ehp takes just a few seconds:

Enter the value

Type your Horsepower value into the first input field.

Read the result

The Electric Horsepower result appears instantly in the second field as you type.

Copy or swap

Use the copy button to grab the result, or the swap button (↔) to reverse the direction and convert ehp back to hp.

Conversion Formula

Formula: ehp = hp × 0.9996. To reverse: hp = ehp × 1.

Worked Example

For example, 10 hp × 0.9996 = 10.00 ehp.

Quick Reference Table

Common hp-to-ehp conversions at a glance:

hp	ehp
10 hp	10.00 ehp
50 hp	49.98 ehp
100 hp	99.96 ehp
250 hp	249.90 ehp
500 hp	499.80 ehp
1000 hp	999.60 ehp

Features

Instant Conversion

Results update as you type — no convert button needed. Calculations use precise factors for engineering-grade accuracy.

Bidirectional Input

Type in either field and the other updates automatically, so you can convert in whichever direction you need.

Copy Results

One click copies any value to your clipboard for documents, spreadsheets, or specifications.

Many Power Units

Switch the dropdowns to convert among Watts, Kilowatts, Megawatts, Horsepower, BTU/h, Tons of Refrigeration, and more.

Mobile Friendly

Works smoothly on desktop, tablet, and phone — convert power units anywhere.

100% Private

Every calculation runs locally in your browser. No data is stored or sent to any server.

Frequently Asked Questions

How do I convert hp to ehp?

Multiply the hp value by 0.9996. For example, 1 hp = 0.9996 ehp.

What is the formula for hp to ehp?

The formula is ehp = hp × 0.9996. To convert back, use hp = ehp × 1.

What is Horsepower?

Mechanical horsepower used in the US and UK. Equal to 745.7 watts. Standard for rating vehicle engines and industrial motors.

What is Electric Horsepower?

Exactly 746 watts. Used specifically for rating electric motors, particularly in North American standards.

Is this converter accurate?

Yes. It uses internationally recognized conversion factors with high precision, suitable for engineering, HVAC, and automotive work.

Can I convert other power units?

Yes. Use the dropdown menus to choose from many units including Watts, Kilowatts, Megawatts, Horsepower (hp/PS), BTU/h, Tons of Refrigeration, and more.