Power Converter

Convert power units: watt, kilowatt, horsepower (hp), BTU/h.

✅ Free 📅 Updated 19.8.2026 🌐 Free tool

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About this calculator

What does the Power Converter calculate?

The Power Converter is a handy tool that makes it easy to convert various power units. Whether you need to convert watts to kilowatts, horsepower, or BTU per hour, the Power Converter helps you get accurate results quickly and effortlessly. The Power Converter is designed so that you can easily compare different power units and gain clear information about energy usage and power.

Who is the calculator suitable for?

The Power Converter is suitable for anyone who needs help converting power units. It is especially useful for:

  • Engineers and technicians working in the energy industry.
  • Construction professionals who need accurate information about equipment power ratings.
  • Students studying physics or engineering.
  • Households wanting to better understand their electricity and heating costs.

Benefits of the calculator

  • Ease of use – convert power units quickly and effortlessly.
  • Accuracy – get reliable results for every conversion.
  • Versatility – support for various power units, such as watts, kilowatts, and horsepower.
  • Time-saving – no more need to search for conversion tables or calculation formulas separately.
  • Free to use – the Power Converter is completely free as part of the FiksuLaskuri.fi portal.

How does the calculator work?

To use the Power Converter, enter the desired power unit, such as watts, and select the unit you want to convert to. The calculator automatically computes and provides you with the result. Be sure to check that the values you enter are correct to get an accurate result. With the calculator, you can easily compare the values of different power units and make decisions about energy usage or equipment selection.

Accuracy and reliability

The Power Converter is based on established calculation formulas that ensure accuracy and reliability. The formulas are scientifically proven and widely used in various fields. Please note that conversions may vary depending on the formulas and units used, but the Power Converter always uses up-to-date and accurate values.

Tips for using the calculator

When using the Power Converter, consider the following tips:

  • Always check the values you enter before performing the conversion.
  • Use the calculator to compare the power ratings of different devices before making purchasing decisions.
  • Utilize the calculator’s results to improve energy efficiency in your household.
  • Don’t hesitate to use the calculator multiple times between different units to get the best understanding of your energy usage.

Example calculation: Power conversion in practice

Let’s illustrate the conversion with an example. The power of a car engine is often stated in horsepower (hp), but in the EU, the official unit is kilowatt (kW): 100 horsepower corresponds to about 73.5 kilowatts (1 hp ≈ 0.7355 kW). The power of home heating appliances is usually stated in watts or kilowatts, for example, a 2,000 W electric heater corresponds to a power of 2 kW. In the United States, the power of air conditioning units is often stated in BTU/h: 12,000 BTU/h corresponds to about 3.5 kilowatts.

The Power Converter is often needed when comparing devices imported from different countries or reading technical specifications that are stated in different units. For example, when assessing the energy efficiency of an appliance, it is useful to know how to convert the power stated by the manufacturer in watts to hourly consumption (kWh) to estimate the device’s annual electricity costs. Engineers and technicians use the converter daily when comparing equipment whose technical specifications are stated according to different standards produced in different countries.



Frequently Asked Questions