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kW / kWh / HP Converter — Free Online Tool

Power units — watts, kilowatts, horsepower

Convert between watts, kilowatts, horsepower (mechanical + metric), BTU/hr, energy units.

Enter any value — others update automatically

Energy (assuming 1 hour runtime)
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kW / HP / W power converter

Convert watts, kilowatts, horsepower, metric HP, BTU/hr.

How to use this tool

  1. 1

    Enter value

    Any power unit.

  2. 2

    See all conversions

    Simultaneous display across units.

  3. 3

    Pick HP variant

    Mechanical or metric HP (differ by ~1.4%).

Frequently Asked Questions

Mechanical vs metric HP
Mechanical HP (US): 745.7 W. Metric HP (PS, CV): 735.5 W. European cars use metric HP. 100 PS ≈ 98.6 hp.
kW vs kWh
kW = power (rate). kWh = energy (power × time). A 10 kW motor running 1 hour uses 10 kWh.

Key Takeaways

  • kW / kWh / HP Converter is a free, browser-based calculator tool — power units — watts, kilowatts, horsepower.
  • No signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use kW / kWh / HP Converter

  1. Open the tool: Launch kW / kWh / HP Converter on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

kW / kWh / HP Converter — Quick Facts

Price
Free — no limits, no watermarks, no paywalls
Privacy
100% browser-based — no data is sent to any server
Platform
Any modern browser on desktop, tablet, or mobile
Category
Calculator Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FeatureDetails
ToolkW / kWh / HP Converter
CategoryCalculator
Signup RequiredNo
File UploadNone — processed in browser
Mobile SupportFully responsive
CostFree forever

Why Use kW / kWh / HP Converter?

You should try kW / kWh / HP Converter for a quick, private way to power units — watts, kilowatts, horsepower. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.