How do you convert Watts to Horsepower?

Divide Watts by 745.7: `Horsepower = Watts / 745.69987`. For example, 7,457 Watts equals exactly 10 hp.

What is the difference between mechanical horsepower and metric horsepower?

Mechanical (imperial) horsepower equals 745.7 Watts (550 ft-lb/s), whereas metric horsepower (PS / Pferdestärke / cv) equals 735.5 Watts (75 kgf-m/s), making metric hp ~1.4% smaller.

How many BTU per hour are in 1 Kilowatt?

1 Kilowatt (kW) equals approximately 3,412.14 BTU per hour (1 BTU/hr = 0.293071 Watts).

How do you convert Kilowatts to Megawatts?

Divide Kilowatts by 1,000: `Megawatts = Kilowatts / 1,000`. For example, 2,500 kW equals 2.5 MW.

What is electrical power in terms of volts and amps?

For direct current (DC) circuits, electric power in Watts equals Voltage (Volts) multiplied by Current (Amps): `Power (W) = V × I`.

How many Watts equal one mechanical horsepower (HP)?

1 mechanical horsepower (Imperial HP) equals approximately 745.69987 Watts.

Unit Converters Cluster

Power Converter (Watts, Kilowatts, Horsepower & BTU/h)

Convert mechanical and electrical power across Watts, kW, Horsepower, BTU/hour, and foot-pounds/sec.

TL;DR: Power Converter provides accurate power unit transformations between Watts (W), Kilowatts (kW), Megawatts (MW), Mechanical Horsepower (hp), Metric Horsepower (PS), and BTU/hr.

PRESETS:

FROM

SLIDER: 100

74.569987 kW

100 hp = 74.569987 kW

PRECISION:

Convert to All Power Converter Units at Once

Click any card to select target

Watt

74,569.987158W

Kilowatt

74.569987kW

Megawatt

0.07457MW

Horsepower (Mechanical)

100hp

Horsepower (Metric)

101.386967hp(M)

BTU per Hour

254,443.357914BTU/h

Mathematical Formula

1 Horsepower (Mechanical) (hp) = 0.74569987 Kilowatt (kW)
Formula: multiply the Horsepower (Mechanical) value by 0.74569987

Reference Conversion Table

Horsepower (Mechanical) (hp)	Kilowatt (kW)
1 hp	0.7457 kW
2 hp	1.4914 kW
5 hp	3.728499 kW
10 hp	7.456999 kW
20 hp	14.913997 kW
50 hp	37.284994 kW
100 hp	74.569987 kW
250 hp	186.424968 kW
500 hp	372.849936 kW
1,000 hp	745.699872 kW

How Do You Convert Kilowatts (kW) to Horsepower (hp)?

To convert Kilowatts (kW) to Mechanical Horsepower (hp), multiply kW by 1.341022 (1 hp = 0.74569987 kW = 745.7 Watts). For metric horsepower (PS/cv), multiply kW by 1.35962 (1 PS = 735.5 Watts). For example, 150 kW equals 201.15 mechanical horsepower.

How to Use the Power Converter

Our Power Converter performs high-precision mathematical operations directly in your browser with zero latency and complete client-side privacy.

Input the power value into the numerical field.
Select your input power unit (e.g., Watts, Kilowatts, Horsepower hp, Metric PS, BTU/hr).
Select your target power unit.
Review the converted power values and rate of energy transfer.
Copy converted power ratings for automotive engines, electric motors, solar arrays, or HVAC.

100% Client-Side Privacy & Data Security

All calculations, amortization schedules, variables, and sensitive numerical datasets execute 100% locally in your web browser memory. Your financial, medical, and personal values are never transmitted, logged, or uploaded to any external server.

Frequently Asked Questions

: Divide Watts by 745.7: `Horsepower = Watts / 745.69987`. For example, 7,457 Watts equals exactly 10 hp.
: Mechanical (imperial) horsepower equals 745.7 Watts (550 ft-lb/s), whereas metric horsepower (PS / Pferdestärke / cv) equals 735.5 Watts (75 kgf-m/s), making metric hp ~1.4% smaller.
: 1 Kilowatt (kW) equals approximately 3,412.14 BTU per hour (1 BTU/hr = 0.293071 Watts).
: Divide Kilowatts by 1,000: `Megawatts = Kilowatts / 1,000`. For example, 2,500 kW equals 2.5 MW.
: For direct current (DC) circuits, electric power in Watts equals Voltage (Volts) multiplied by Current (Amps): `Power (W) = V × I`.
: 1 mechanical horsepower (Imperial HP) equals approximately 745.69987 Watts.

Cite This Calculator

Need to reference this online calculator in a financial proposal, academic paper, blog post, or classroom curriculum? Copy a citation below.

NexLove.org. (2026). Power Converter [Online Calculation Tool]. https://nexlove.org/tools/power-converter

“Power Converter.” NexLove.org, 2026, nexlove.org/tools/power-converter.

NexLove.org (2026) Power Converter. Available at: https://nexlove.org/tools/power-converter (Accessed: 2026).

@misc{nexlove_power_converter,
  title = {Power Converter},
  author = {{NexLove.org}},
  year = {2026},
  url = {https://nexlove.org/tools/power-converter}
}

Embed This Tool

Add the live Power Converter to your own website with this snippet — it loads the real, working calculator in an iframe.

<iframe src="https://nexlove.org/embed/power-converter.html" width="100%" height="600" style="border:1px solid #e2e8f0;border-radius:12px" title="Power Converter — NexLove.org" loading="lazy"></iframe>

Related Unit Converters

Pressure Converter

Calculator & Converter Hub

Browse all Calculators