Energy & Rate by Digital Daptos

Free Power Converter

Instantly convert between Watts, Horsepower, BTUs, and Calories. Essential for engineers, mechanics, HVAC technicians, and physics students.

Watts (W)
0
Kilowatts (kW)
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Horsepower (hp)
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Calories/sec (cal/s)
0
BTUs/hour (BTU/h)
0
Electrical Units
Mechanical Units
Thermal Units

Understanding Power Units

Power is the rate at which work is done or energy is transferred. Different industries use different units to measure power, from electrical systems to car engines and heating appliances.

Common Units Explained

Common Conversions

Horsepower to Watts

1 Mechanical HP ≈ 745.7 Watts. 1 Metric HP ≈ 735.5 Watts. This tool uses the standard Mechanical HP.

Kilowatts to BTUs/hr

1 kW ≈ 3412 BTU/h. This is useful for sizing generators or heating systems.

Simple 3-Step Process

How This Online Tool Works

Instant, browser-based execution with zero configuration and zero delays.

01

1. Input or Upload

Type your content, enter values, paste code, or select your files in the tool workspace above.

02

2. Instant Processing

All algorithms run client-side in milliseconds directly inside your browser. No server waiting time.

03

3. Copy or Download

Get formatted results, copy to clipboard, or download files immediately with no watermarks or restrictions.

Ironclad Client Protection

Zero-Risk Privacy & Performance Guarantees

Engineered by Digital Daptos for maximum speed, strict privacy, and accuracy.

100% Free & Uncapped

Unlimited usage with no hidden fees, trial periods, or registration required.

100% Client-Side Private

Your data and files process locally in your browser. Nothing is saved or stored.

Millisecond Speed

Optimized vanilla JavaScript architecture delivering instant real-time results.

Mobile First Responsive

Seamless experience on smartphones, tablets, laptops, and ultra-wide desktops.

Clear Answers

Frequently Asked Questions

Everything you need to know about using this free online tool.

1 Mechanical Horsepower (hp) is approximately equal to 745.7 Watts. 1 Metric Horsepower is approximately 735.5 Watts.
A British Thermal Unit (BTU) is a measure of heat energy. In power terms, 1 BTU per hour is approximately 0.293 Watts. It
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100% yes. Calculations, text manipulations, QR codes, and conversions are processed entirely client-side inside your browser via JavaScript. Your data never leaves your device and is not saved to any server.
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No installation is required. Everything runs instantly in any modern web browser (Chrome, Safari, Firefox, Edge, Brave, etc.) without plugins.
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