Power Unit Converter

Supports precise conversion between multiple power units such as watts, kilowatts, megawatts, and horsepower, covering the full range from microwatts to terawatts.

Bug report

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

Loading tool, please wait...

If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

Return to old version

1Set Input Power

Set a value, source unit, and target unit first. Results calculate automatically; you can still adjust precision.

Input Value

Source Unit

Primary Target Unit

Display Format

Decimal Places

Horsepower Standard

Thousands Separator

Copy Format

Show Formula Include unit symbol

2Sample data

3View results

Key results

Waiting for input

Watt base value-

Source Unit-

Target unit-

Copy result

1Batch power input

One item per line. Supports “value unit”; if no unit is given, the current source unit is used. Set the target unit first, then click Batch convert.

Batch data

Batch results

Original input	Detected value	Source Unit	Target result	Watt value
Click Batch convert

1Common power references

2Conversion relationships and concepts

Power and energyPower is the rate of energy conversion per unit time, commonly expressed in watts. Energy can be found by multiplying power by time.

Horsepower StandardMechanical, metric, and electrical horsepower have slightly different watt factors. Confirm the standard before engineering calculations.

BTU/hBTU/hour is common in HVAC, refrigeration, and thermal applications, and converts well with watts and kilowatts.

Display precisionAuto format switches between decimals and scientific notation based on value size for easier reading.

Instructions

Software Usage Instructions

Set the input power: Enter the power value in “Input Value” and choose the source unit, such as watt, kilowatt, megawatt, horsepower, BTU/h, dBm, etc.
Select the target unit: Choose the unit you want to focus on in “Key Target Unit”; the tool will also display conversion results for all supported units.
Adjust display settings: You can set the display format, decimal places, thousands separator, horsepower standard, and copy format, suitable for engineering calculations or everyday lookup.
Use sample data: Click examples such as LED bulb, electric water heater, car engine, air conditioner cooling capacity, and wind turbine to quickly fill in common power values.
View and copy results: The results area displays the key converted value, watt reference value, and details for each unit. Click an individual result to copy it, or click “Copy All” to copy the complete results.
Batch conversion: Switch to “Batch Conversion” and enter multiple entries in the format “value unit” on each line, such as “1.5 kW” and “12000 BTU/h”, then click “Batch Conversion” to generate a table.
Export and save: You can export single or batch results as CSV, or click “Save Settings” to keep frequently used units, precision, and copy format.

FAQ

A: 1 kilowatt (kW) = 1000 watts (W). For example, 1500 W equals 1.5 kW, commonly used for labeling the power of household appliances, heating equipment, and small motors.

A: Horsepower is commonly used for engines and mechanical equipment, while kilowatt is the SI unit of power. The factors for mechanical horsepower, metric horsepower, and electrical horsepower differ slightly, so you can select the horsepower standard in the tool before converting.

A: BTU/h is commonly used in HVAC, air conditioning, refrigeration, and thermal engineering calculations. The tool supports conversions between BTU/h and units such as watts, kilowatts, and refrigeration tons, making it easy to estimate equipment power.

A: dBm is a logarithmic power unit referenced to 1 milliwatt and is common in communications and RF fields. The tool converts it into linear power units such as watts, milliwatts, and kilowatts according to the logarithmic relationship.

A: Enter one data item per line in the format “value unit”, such as “100 W”, “1.5 kW”, “0.75 hp”, or “12000 BTU/h”. If no unit is entered, the currently set source unit will be used.

A: No. Power conversion, batch processing, copying, and CSV export are all completed on the local page, without uploading input data.