🔌 Power

Convert mechanical and electrical power units.

About Power tools

This Power category lets you convert between 76 units using verified ratios. Conversions run locally in your browser and display up to 8 decimals for quick verification.

Many converters are anchored to a base unit (here: Watt), then derived through stable multipliers. Each converter page includes the formula and reference tables for transparency.

Professional verification
Validate results with clear formulas, reference tables, and consistent unit symbols.
Fast exploration
Search tools instantly, open a dedicated page, and share deep-links.
Repeatable workflow
Keep results consistent across projects by using the same definitions and rounding.

Featured tools

watt → kilowatthorsepower → wattkilowatt → horsepowermegawatt → watt

Top conversions people use

People often convert watt → kilowatt, horsepower → watt, kilowatt → horsepower.

watt → kilowatthorsepower → wattkilowatt → horsepowermegawatt → wattwatt → horsepowerwatt → horsepower metricwatt → megawattwatt → gigawattwatt → terawattwatt → btu hr

FAQ

What is Power used for?
Power tools help you convert and verify values when unit systems differ. They are commonly used in engineering calculations, academic work, product specs, and data normalization.
Why can results differ between websites?
Different standards, rounding rules, and unit definitions can change results. Use the formula and reference tables on each tool page to confirm what definition is being applied.
Are the results accurate?
Yes. Calculations run locally in your browser using verified ratios and display up to 8 decimals. For professional work, keep unit symbols and round at the end.

Available Tools

All Power Tools

Watt
Symbol: W
Kilowatt
Symbol: kW
Horsepower
Symbol: hp
Horsepower (Metric)
Symbol: PS
Megawatt
Symbol: MW
Gigawatt
Symbol: GW
Terawatt
Symbol: TW
BTU/hr
Symbol: BTU/h
Kilocalorie per hour
Symbol: kcal/h
Ton of refrigeration
Symbol: TR
Exawatt
Symbol: EW
Petawatt
Symbol: PW
Hectowatt
Symbol: hW
Dekawatt
Symbol: daW
Deciwatt
Symbol: dW
Centiwatt
Symbol: cW
Milliwatt
Symbol: mW
Microwatt
Symbol: µW
Nanowatt
Symbol: nW
Picowatt
Symbol: pW
Femtowatt
Symbol: fW
Attowatt
Symbol: aW
Horsepower (550 ft·lbf/s)
Symbol: hp
Horsepower (Boiler)
Symbol: hp (boiler)
Horsepower (Electric)
Symbol: hp (electric)
Horsepower (Water)
Symbol: hp (water)
Pferdestärke
Symbol: PS
BTU (IT)/minute
Symbol: Btu/min
BTU (IT)/second
Symbol: Btu/s
BTU (th)/hour
Symbol: Btu (th)/h
View All Power Tools

Watt to Kilowatt

Professional W to kW conversion.

Kilowatt to Watt

Professional kW to W conversion.

Watt to Horsepower

Professional W to hp conversion.

Horsepower to Watt

Professional hp to W conversion.

Watt to Horsepower (Metric)

Professional W to PS conversion.

Horsepower (Metric) to Watt

Professional PS to W conversion.

Watt to Megawatt

Professional W to MW conversion.

Megawatt to Watt

Professional MW to W conversion.

Watt to Gigawatt

Professional W to GW conversion.

Gigawatt to Watt

Professional GW to W conversion.

Watt to Terawatt

Professional W to TW conversion.

Terawatt to Watt

Professional TW to W conversion.

Watt to BTU/hr

Professional W to BTU/h conversion.

BTU/hr to Watt

Professional BTU/h to W conversion.

Watt to Kilocalorie per hour

Professional W to kcal/h conversion.

Kilocalorie per hour to Watt

Professional kcal/h to W conversion.

Watt to Ton of refrigeration

Professional W to TR conversion.

Ton of refrigeration to Watt

Professional TR to W conversion.

Watt to Exawatt

Professional W to EW conversion.

Exawatt to Watt

Professional EW to W conversion.

Watt to Petawatt

Professional W to PW conversion.

Petawatt to Watt

Professional PW to W conversion.

Watt to Hectowatt

Professional W to hW conversion.

Hectowatt to Watt

Professional hW to W conversion.

Watt to Dekawatt

Professional W to daW conversion.

Dekawatt to Watt

Professional daW to W conversion.

Watt to Deciwatt

Professional W to dW conversion.

Deciwatt to Watt

Professional dW to W conversion.

Watt to Centiwatt

Professional W to cW conversion.

Centiwatt to Watt

Professional cW to W conversion.

Watt to Milliwatt

Professional W to mW conversion.

Milliwatt to Watt

Professional mW to W conversion.

Watt to Microwatt

Professional W to µW conversion.

Microwatt to Watt

Professional µW to W conversion.

Watt to Nanowatt

Professional W to nW conversion.

Nanowatt to Watt

Professional nW to W conversion.

Watt to Picowatt

Professional W to pW conversion.

Picowatt to Watt

Professional pW to W conversion.

Watt to Femtowatt

Professional W to fW conversion.

Femtowatt to Watt

Professional fW to W conversion.

Watt to Attowatt

Professional W to aW conversion.

Attowatt to Watt

Professional aW to W conversion.

Watt to Horsepower (550 ft·lbf/s)

Professional W to hp conversion.

Horsepower (550 ft·lbf/s) to Watt

Professional hp to W conversion.

Watt to Horsepower (Boiler)

Professional W to hp (boiler) conversion.

Horsepower (Boiler) to Watt

Professional hp (boiler) to W conversion.

Watt to Horsepower (Electric)

Professional W to hp (electric) conversion.

Horsepower (Electric) to Watt

Professional hp (electric) to W conversion.

Watt to Horsepower (Water)

Professional W to hp (water) conversion.

Horsepower (Water) to Watt

Professional hp (water) to W conversion.

Watt to Pferdestärke

Professional W to PS conversion.

Pferdestärke to Watt

Professional PS to W conversion.

Watt to BTU (IT)/minute

Professional W to Btu/min conversion.

BTU (IT)/minute to Watt

Professional Btu/min to W conversion.

Watt to BTU (IT)/second

Professional W to Btu/s conversion.

BTU (IT)/second to Watt

Professional Btu/s to W conversion.

Watt to BTU (th)/hour

Professional W to Btu (th)/h conversion.

BTU (th)/hour to Watt

Professional Btu (th)/h to W conversion.

Watt to BTU (th)/minute

Professional W to Btu (th)/min conversion.

BTU (th)/minute to Watt

Professional Btu (th)/min to W conversion.

Watt to BTU (th)/second

Professional W to Btu (th)/s conversion.

BTU (th)/second to Watt

Professional Btu (th)/s to W conversion.

Watt to MBtu (IT)/hour

Professional W to MBtu/h conversion.

MBtu (IT)/hour to Watt

Professional MBtu/h to W conversion.

Watt to MBH

Professional W to MBH conversion.

MBH to Watt

Professional MBH to W conversion.

Watt to Kilocalorie (IT)/hour

Professional W to kcal/h conversion.

Kilocalorie (IT)/hour to Watt

Professional kcal/h to W conversion.

Watt to Kilocalorie (IT)/minute

Professional W to kcal/min conversion.

Kilocalorie (IT)/minute to Watt

Professional kcal/min to W conversion.

Watt to Kilocalorie (IT)/second

Professional W to kcal/s conversion.

Kilocalorie (IT)/second to Watt

Professional kcal/s to W conversion.

Watt to Kilocalorie (th)/minute

Professional W to kcal (th)/min conversion.

Kilocalorie (th)/minute to Watt

Professional kcal (th)/min to W conversion.

Watt to Kilocalorie (th)/second

Professional W to kcal (th)/s conversion.

Kilocalorie (th)/second to Watt

Professional kcal (th)/s to W conversion.

Watt to Calorie (IT)/hour

Professional W to cal/h conversion.

Calorie (IT)/hour to Watt

Professional cal/h to W conversion.

Watt to Calorie (IT)/minute

Professional W to cal/min conversion.

Calorie (IT)/minute to Watt

Professional cal/min to W conversion.

Watt to Calorie (IT)/second

Professional W to cal/s conversion.

Calorie (IT)/second to Watt

Professional cal/s to W conversion.

Watt to Calorie (th)/hour

Professional W to cal (th)/h conversion.

Calorie (th)/hour to Watt

Professional cal (th)/h to W conversion.

Watt to Calorie (th)/minute

Professional W to cal (th)/min conversion.

Calorie (th)/minute to Watt

Professional cal (th)/min to W conversion.

Watt to Calorie (th)/second

Professional W to cal (th)/s conversion.

Calorie (th)/second to Watt

Professional cal (th)/s to W conversion.

Watt to Foot·pound-force/hour

Professional W to ft·lbf/h conversion.

Foot·pound-force/hour to Watt

Professional ft·lbf/h to W conversion.

Watt to Foot·pound-force/minute

Professional W to ft·lbf/min conversion.

Foot·pound-force/minute to Watt

Professional ft·lbf/min to W conversion.

Watt to Foot·pound-force/second

Professional W to ft·lbf/s conversion.

Foot·pound-force/second to Watt

Professional ft·lbf/s to W conversion.

Watt to Pound·foot/hour

Professional W to lbf·ft/h conversion.

Pound·foot/hour to Watt

Professional lbf·ft/h to W conversion.

Watt to Pound·foot/minute

Professional W to lbf·ft/min conversion.

Pound·foot/minute to Watt

Professional lbf·ft/min to W conversion.

Watt to Pound·foot/second

Professional W to lbf·ft/s conversion.

Pound·foot/second to Watt

Professional lbf·ft/s to W conversion.

Watt to Erg/second

Professional W to erg/s conversion.

Erg/second to Watt

Professional erg/s to W conversion.

Watt to Kilovolt-ampere

Professional W to kVA conversion.

Kilovolt-ampere to Watt

Professional kVA to W conversion.

Watt to Volt-ampere

Professional W to VA conversion.

Volt-ampere to Watt

Professional VA to W conversion.

Watt to Newton-meter/second

Professional W to N·m/s conversion.

Newton-meter/second to Watt

Professional N·m/s to W conversion.

Watt to Joule/second

Professional W to J/s conversion.

Joule/second to Watt

Professional J/s to W conversion.

Watt to Exajoule/second

Professional W to EJ/s conversion.

Exajoule/second to Watt

Professional EJ/s to W conversion.

Watt to Petajoule/second

Professional W to PJ/s conversion.

Petajoule/second to Watt

Professional PJ/s to W conversion.

Watt to Terajoule/second

Professional W to TJ/s conversion.

Terajoule/second to Watt

Professional TJ/s to W conversion.

Watt to Gigajoule/second

Professional W to GJ/s conversion.

Gigajoule/second to Watt

Professional GJ/s to W conversion.

Watt to Megajoule/second

Professional W to MJ/s conversion.

Megajoule/second to Watt

Professional MJ/s to W conversion.

Watt to Kilojoule/second

Professional W to kJ/s conversion.

Kilojoule/second to Watt

Professional kJ/s to W conversion.

Watt to Hectojoule/second

Professional W to hJ/s conversion.

Hectojoule/second to Watt

Professional hJ/s to W conversion.

Watt to Dekajoule/second

Professional W to daJ/s conversion.

Dekajoule/second to Watt

Professional daJ/s to W conversion.

Watt to Decijoule/second

Professional W to dJ/s conversion.

Decijoule/second to Watt

Professional dJ/s to W conversion.

Watt to Centijoule/second

Professional W to cJ/s conversion.

Centijoule/second to Watt

Professional cJ/s to W conversion.

Watt to Millijoule/second

Professional W to mJ/s conversion.

Millijoule/second to Watt

Professional mJ/s to W conversion.

Watt to Microjoule/second

Professional W to µJ/s conversion.

Microjoule/second to Watt

Professional µJ/s to W conversion.

Watt to Nanojoule/second

Professional W to nJ/s conversion.

Nanojoule/second to Watt

Professional nJ/s to W conversion.

Watt to Picojoule/second

Professional W to pJ/s conversion.

Picojoule/second to Watt

Professional pJ/s to W conversion.

Watt to Femtojoule/second

Professional W to fJ/s conversion.

Femtojoule/second to Watt

Professional fJ/s to W conversion.

Watt to Attojoule/second

Professional W to aJ/s conversion.

Attojoule/second to Watt

Professional aJ/s to W conversion.

Watt to Joule/hour

Professional W to J/h conversion.

Joule/hour to Watt

Professional J/h to W conversion.

Watt to Joule/minute

Professional W to J/min conversion.

Joule/minute to Watt

Professional J/min to W conversion.

Watt to Kilojoule/hour

Professional W to kJ/h conversion.

Kilojoule/hour to Watt

Professional kJ/h to W conversion.

Watt to Kilojoule/minute

Professional W to kJ/min conversion.

Kilojoule/minute to Watt

Professional kJ/min to W conversion.