Quick Unit Convert

Quickly and easily convert between different units of measurement. Our free tool supports length, weight, volume, temperature, speed, data, and many other quantities. Select a category and units, and we'll instantly perform the conversion for you.

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Instant Processing

Explore Our Converters

Choose from 14 categories of measurement. Each converter supports a wide range of units with instant, accurate results.

Length

Convert between meters, feet, inches, and more

Area

Convert between square meters, square feet, acres, and more

Volume

Convert between liters, gallons, cubic meters, and more

Weight

Convert between kilograms, pounds, ounces, and more

Temperature

Convert between Celsius, Fahrenheit, Kelvin, and more

Speed

Convert between km/h, mph, m/s, and more

Time

Convert between seconds, minutes, hours, and more

Data

Convert between bytes, kilobytes, megabytes, and more

Pressure

Convert between Pascal, PSI, bar, and more

Energy

Convert between Joules, calories, kWh, and more

Power

Convert between Watts, horsepower, BTU/h, and more

Angle

Convert between degrees, radians, gradians, and more

Frequency

Convert between Hz, kHz, MHz, and more

Flow Rate

Convert between L/min, m³/s, gal/min, and more

Why Choose Quick Unit Convert?

Built to make everyday conversions effortless for students, professionals, travelers, cooks, and engineers alike.

Instant & Accurate

Results update the moment you type, powered by a well-tested conversion engine across 14 measurement categories.

Works Everywhere

Runs entirely in your browser on phones, tablets, and desktops. No app to install and no account to create.

Private by Design

Your values are converted locally in the browser. We don't ask you to sign up or hand over personal data to convert.

Shareable URLs

Every conversion has its own clean link, so you can bookmark it or share the exact result with anyone.

Popular Conversions

Jump straight to the conversions people use most.

cm to inches inches to cm meters to feet feet to meters km to miles miles to km cm to feet feet to cm meters to yards yards to meters mm to inches inches to mm

A Unit Converter for Every Day

Whether you're following a recipe written in metric, planning a trip abroad, completing homework, or working through engineering figures, switching between units of measurement should be simple. Quick Unit Convert removes the friction: pick a category, choose what you're converting from and to, and read your answer instantly.

We cover the conversions that come up most often — from length and weight to temperature, volume, and digital data. Curious how the math works or which units are supported? Read how it works, browse the blog, or check the FAQ.