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This site publishes 22 pages: the main kW calculator, 20 conversion and reference pages, and this index. The homepage carries a full translation in 18 languages. Supporting pages are written in English only.
Conversion calculators
Nine single-purpose converters, each showing the formula it used.
| Page | What it covers |
|---|---|
| Kilowatts to amps | Current draw from a kilowatt load, for DC, single-phase and three-phase circuits. |
| Amps to kilowatts | Real power from a measured clamp-meter current reading. |
| Watts to kilowatts | The factor-of-1,000 step between watts and kilowatts. |
| Kilowatts to volts | Solving for voltage when power and current are both known. |
| Kilowatts to horsepower | Motor ratings between kW and mechanical horsepower. |
| Horsepower to kilowatts | Shaft output in HP converted to kilowatts, then to electrical input. |
| kVA to kilowatts | Apparent power to real power at any power factor. |
| Kilowatts to BTU/hr | Electrical or thermal power in BTU per hour and tons of refrigeration. |
| Kilowatts to kilowatt-hours | Energy used over a run time, from a load in kilowatts. |
Concept and reference pages
Five explanatory pages covering the theory the calculators rest on.
| Page | What it covers |
|---|---|
| Three-phase power | Delta and wye, line-to-line against line-to-neutral, and where the 1.732 multiplier comes from. |
| Power factor and correction | Capacitor bank sizing, utility surcharges, and a worked correction example. |
| Apparent, reactive and real power | What kVA, kVAR and kW physically are, built up from the phasor diagram. |
| Electrical power formulas | Ohm's Law, Watt's Law and every conversion collected as a reference sheet. |
| Load calculation basics | Connected load against demand load, following NEC Article 220 methodology. |
Application calculators
Six scenario-driven tools, each with fields specific to its own domain.
| Page | What it covers |
|---|---|
| Generator sizing | Running watts plus the worst motor-starting surge, turned into a continuous kW rating. |
| Motor full-load current | Estimated FLA from horsepower, and why code work uses the NEC table value. |
| Home energy use | Appliance-by-appliance daily kWh, from an 18-item reference table. |
| Solar system size | Daily usage to array kilowatts to panel count. |
| EV charging power | Level 1, Level 2 and DC fast charging compared, with charge time from battery size. |
| Kilowatt-hour cost | A load and a tariff rate turned into a daily, monthly and annual figure. |
Homepage languages
The calculator, every worked example and the full FAQ are translated in each of these 18 languages. Each URL below serves its language as static HTML.
- English/
- Español/es
- Français/fr
- Deutsch/de
- Português/pt
- Italiano/it
- Русский/ru
- 日本語/ja
- 한국어/ko
- हिन्दी/hi
- বাংলা/bn
- العربية/ar
- Türkçe/tr
- Bahasa Indonesia/id
- Bahasa Melayu/ms
- Polski/pl
- Svenska/sv
- Български/bg
A machine-readable version of this index is published at sitemap.xml, and a plain-text summary for language models at llms.txt.