Power Converters
Convert between power units used in motors, appliances, electrical systems, and HVAC ratings, including W, kW, MW, GW, hp, PS, and BTU/h, using exact watt-based multiplicative factors.
Scope & Verification
This hub groups related converter families so you can move from the category level to exact routes with one clear basis per page.
- Families are split so exact-factor, profile-based, density-based, and estimate-style pages do not collapse into one generic answer.
- Leaf pages keep calculator, common values, FAQ, and reverse routes aligned to the same assumption.
- Methodology and verification pages document how those assumptions are chosen and checked.
Explanation
Power is the rate of energy transfer over time, commonly expressed as watts (W), where 1 W = 1 J/s. This hub converts through watts so SI scaling (kW, MW, GW), horsepower variants (hp and PS), and thermal rate units (BTU/h) stay exact and reversible on one fixed basis. Use it for appliance ratings, motor output, plant-scale generation, and HVAC power comparisons without mixing definitions.
Power pages are organized by conversion direction so mirror leaves remain aligned and comparable.
Read more
Open a family hub to reach leaf pages with direct answers, calculator output, and reverse links built on the same constants.
Frequently Asked Questions
What is power?
Power is the rate at which energy is transferred or converted, expressed as energy or work per unit time.
What is the SI unit of power?
The SI unit is the watt (W), equal to one joule per second.
What is the difference between hp and PS?
Mechanical horsepower (hp) and metric horsepower (PS) use different definitions, so they are close but not equal.
Why is kW common for motors and appliances?
Kilowatts keep typical motor and appliance ratings readable while still mapping exactly to watts.
What does BTU/h represent?
BTU per hour is a thermal power rate commonly used in HVAC and heating/cooling equipment specifications.
Are these conversions purely multiplicative?
Yes. Power conversions in this hub are purely multiplicative with no additive offsets.