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Power Converter

Instantly convert power between watts, kilowatts, megawatts, metric and mechanical horsepower, BTU and refrigeration units.

Use a comma or period as the decimal separator; do not use thousands separators.

All units

SI

Use as target unit: Picowatt
Picowatt (pW)
1e15
Use as target unit: Nanowatt
Nanowatt (nW)
1,000,000,000,000
Use as target unit: Microwatt
Microwatt (µW)
1,000,000,000
Use as target unit: Milliwatt
Milliwatt (mW)
1,000,000
Use as target unit: Watt
Watt (W)
1,000
Use as target unit: Kilowatt
Kilowatt (kW)
From
1
Use as target unit: Megawatt
Megawatt (MW)
0.001
Use as target unit: Gigawatt
Gigawatt (GW)
0.000001
Use as target unit: Terawatt
Terawatt (TW)
1e-9

Heat flow

Use as target unit: Thermochemical British Thermal Unit per Hour
Thermochemical British Thermal Unit per Hour (BTU(th)/h)
3,414.43
Use as target unit: British Thermal Unit (IT) per Hour
British Thermal Unit (IT) per Hour (BTU(IT)/h)
3,412.14
Use as target unit: Thermochemical Kilocalorie per Hour
Thermochemical Kilocalorie per Hour (kcal(th)/h)
860.421
Use as target unit: International Table Kilocalorie per Hour
International Table Kilocalorie per Hour (kcal(IT)/h)
859.845
Use as target unit: Thermochemical Calorie per Second
Thermochemical Calorie per Second (cal(th)/s)
239.006
Use as target unit: British Thermal Unit (IT) per Second
British Thermal Unit (IT) per Second (BTU(IT)/s)
0.947817

Horsepower

Use as target unit: Metric Horsepower
Metric Horsepower (PS)
1.35962
Use as target unit: Mechanical Horsepower
Mechanical Horsepower (hp(mech))
To
1.34102
Use as target unit: Electric Horsepower
Electric Horsepower (hp(elec))
1.34048
Use as target unit: Boiler Horsepower
Boiler Horsepower (hp(boiler))
0.101942

Mechanical rate

Use as target unit: Foot-pound Force per Minute
Foot-pound Force per Minute (ft·lbf/min)
44,253.7
Use as target unit: Foot-pound Force per Second
Foot-pound Force per Second (ft·lbf/s)
737.562
Use as target unit: Kilogram-force Metre per Second
Kilogram-force Metre per Second (kgf·m/s)
101.972

Refrigeration

Use as target unit: Ton of Refrigeration
Ton of Refrigeration (TR)
0.284345

CGS

Use as target unit: Erg per Second
Erg per Second (erg/s)
10,000,000,000
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Good to know

The Power Converter converts power directly in your browser. It supports common units such as watts, kilowatts, megawatts, metric horsepower, hp, and BTU/h and is useful for everyday tasks, school, studies, engineering, travel, shopping, planning, and quick plausibility checks.

Typical searches for this page include kW to horsepower, watts to hp, convert power. Calculation runs locally in the browser, without upload or server processing. Mechanical, electrical, and thermal power are evaluated differently depending on the system.

Typical use cases

Quick everyday conversion

Convert values for recipes, measurements, travel, online shopping, DIY work, or product specifications without opening a spreadsheet.

Compare technical values

Use the converter for technical documentation, data sheets, lab values, device settings, or international specifications.

Local calculation without tracking

Entered values stay in the browser. This is useful for drafts, internal calculations, and quick checks where no external service is needed.

Tips for better results

Check unit and rounding

Check the source unit and decide whether the rounded display is sufficient or whether more decimal places are useful.

Cross-check critical values

For legal, medical, safety-critical, or regulated measurement use, compare results with the applicable standard or measurement source.

How it works

Step by step

  1. 1

    Enter a value

    Enter the source value and choose the matching starting unit.

  2. 2

    Compare results

    Target values are calculated automatically and shown in the most important units.

  3. 3

    Use the value

    Copy the matching result into documentation, planning, orders, code, spreadsheets, or notes.

Features

Browser-based conversion

Calculation runs locally. Values are not sent to a server for conversion.

Multiple units at a glance

After input, matching target values are shown immediately in multiple units.

Flexible display

Options such as grouping, decimal places, or source unit help make results easy to review.

Frequently asked questions

Are inputs uploaded when using Power Converter?

No. Conversion runs locally in the browser. Entered values are not transferred to Xoricon or another server.

How accurate is the conversion?

The converter uses standardized factors and JavaScript floating-point numbers. Displayed results are rounded and are not intended for regulated metrology or uncertainty calculations.

Can I see multiple units at once?

Yes. Many converters show several matching target values after one input, so you can quickly find the relevant unit.

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