Units

Units Converter

Convert between metric, imperial, scientific, and everyday units across 10 measurement categories.

Power Converter

Watt, kilowatt, horsepower (mechanical & metric), BTU/h, ft·lb/s.

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Energy Converter

Joule, kilojoule, watt-hour, kWh, calorie, kcal, BTU, electron-volt.

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Pressure Converter

Pascal, kilopascal, bar, PSI, atmosphere, torr, mmHg.

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Data Size Converter

bit, Byte, KB, MB, GB, TB, PB with decimal/binary toggle.

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Fuel Economy Converter

MPG (US), MPG (UK), L/100km, km/L, miles/L.

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Cooking Volume Converter

Teaspoon, tablespoon, cup, pint, quart, gallon, mL, L.

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Cooking Weight Converter

Ounce, pound, gram, kg, cup of flour/sugar.

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Torque Converter

Newton-meter, foot-pound, kilogram-meter, inch-pound.

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Frequency Converter

Hertz, kilohertz, megahertz, gigahertz, RPM, rad/s.

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Angle Converter

Degree, radian, gradian, minute of arc, second of arc, turn.

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Why use our Units converters?

Exact to 6 decimals

Every tool uses a base-unit method with exact factors — including the precise π factor for radians — so results are accurate, not rounded early.

Metric, imperial & scientific

Switch between watt and horsepower, pascals and PSI, degrees and radians in one place — no more hunting for the right factor.

Instant & offline

All math runs in your browser as you type. No server calls, no waiting, and it works offline.

Everyday + engineering

From cooking teaspoons to torque wrenches and CPU gigahertz, the 10 categories cover kitchen, garage, lab, and classroom.

Other Converters

Prefer the original all-in-one converter or need currency, color, or time zones? Visit the main Converters category:

About the Units category

The Units category focuses on physical quantity conversions — things you can measure in the real world: power, energy, pressure, data, fuel efficiency, cooking amounts, torque, frequency, and angles. Unlike the general Unit Converter (which covers length, weight, temperature, area, volume, speed, and time), these tools go deeper into engineering and everyday domains. Each page converts through a single base unit, so the answer is always consistent and exact. Pick a card above to start converting.

Frequently asked questions

What units can I convert here?

Ten categories: power, energy, pressure, data size, fuel economy, cooking volume, cooking weight, torque, frequency, and angle.

How accurate are the conversions?

All tools use a base-unit method with exact factors accurate to 6 decimal places, including the exact π factor for radians.

Is data size decimal or binary?

The data size converter has a toggle: decimal (SI, ×1000) for storage, or binary (×1024) for RAM/OS.

Do these tools work offline?

Yes. All conversion math runs in your browser with no server calls.