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Power units

Power Converter

Convert power between watts, kilowatts, megawatts, horsepower, and BTU per hour.

Interactive calculator

Convert power units

Compare watts, kilowatts, megawatts, horsepower, and BTU per hour for appliances, engines, and engineering work.

Results

Result (kW)

1.11855

1.5 hp = 1.11855 kW

How to use it

  1. 01Enter the power value you need to convert.
  2. 02Choose the current unit and the target unit.
  3. 03Use the result to compare equipment or specifications across unit systems.

Result guide

  • Watts act as the base unit behind the power conversion table.
  • Horsepower is common for motors and engines, while kilowatts are common for electrical equipment.
  • BTU per hour support makes the page useful in HVAC comparisons too.

About this calculator

Power conversion is useful in appliances, generators, engines, and HVAC equipment because product specifications often mix electrical and mechanical power units.

A good converter should include both consumer-friendly and engineering-friendly units so the page works across home, trade, and technical use cases.

Frequently asked questions

Why are horsepower and kilowatts both common?

Because different industries and product categories historically adopted different power units for similar equipment.

What is BTU per hour used for?

It is commonly used to describe heating and cooling capacity in HVAC contexts.

Should I compare power and energy directly?

No. Power describes rate, while energy includes time and is measured in different units such as kilowatt-hours or joules.

DE
Per WHO guidelines / Peer-reviewed researchFormula version: 2026

Reviewed by Dr. Elena Rostova, MD, PhD

Medical Doctor & Clinical Nutrition Researcher

Reviews health index calculators, unit converter benchmarks, and mathematical models against WHO guidelines and peer-reviewed research.

Formula last verified: June 2026

Sources: Per WHO guidelines / Peer-reviewed research/Standard unit-conversion constants and base-unit references/Cross-checks against known engineering and metric conversion values

Disclaimer: Calculator results are for general reference and educational purposes only per WHO standards. Health indexes and mathematical models are not a substitute for professional medical diagnosis, clinical nutrition, or certified trade advice.

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