Free Unit Converter — Runs in Your Browser

Convert between 80+ units across 10 categories: length, weight, temperature, volume, area, speed, time, data, energy, and pressure. Type in either direction, swap units instantly, and copy results with one click. Runs in a modern browser, no signup required.

Decimal places:

Quick conversions

How to use Unit Converter

Unit Converter helps you convert between measurements like length, weight, temperature, volume, speed, and data in your browser. It is useful for quick reference, schoolwork, recipes, travel, and technical checks. Use it when you want the calculation to happen inside your browser with clear controls for the converted value.

  1. 1

    Open Unit Converter

    Start on the Unit Converter page and keep the browser tab open while you work. The controls above are focused on producing the converted value from your conversion value.

  2. 2

    Add your conversion value

    Enter the number you want to convert and choose the source unit. The conversion value is handled in your browser as you edit.

  3. 3

    Choose the right settings

    Choose the measurement category and target unit, then swap units or adjust precision if those options are available.

  4. 4

    Review the result

    Review the converted value and change the units if you need a different comparison. The calculation updates from the values you enter, which makes comparison easier.

  5. 5

    Save or use the converted value

    Use the converted value for your calculation, recipe, travel plan, study note, or technical reference.

  6. 6

    Clear private data when finished

    When finished, clear the value or close the tab if the conversion was private.

Why use Unit Converter on The Privacy Tools?

Use Unit Converter on The Privacy Tools when you need fast measurement conversions without opening a bulky third-party calculator. It is useful for length, weight, temperature, volume, speed, data, and other everyday unit checks. Your conversion value is processed in your browser for instant unit conversion. There is no signup flow or account requirement, and no server-side calculation step for your conversion value.

Frequently Asked Questions

What does Unit Converter do?

Unit Converter converts between measurements such as length, weight, temperature, volume, speed, data, and more. It is useful for everyday conversions, travel, schoolwork, recipes, and technical checks.

Are my conversion values sent to a server?

No. Your conversion values are processed in your browser. The tool is designed to give quick results without sending your input away for processing.

Is Unit Converter free to use?

Yes. Unit Converter is free with no signup required. You can convert values as often as you need.

Do I need to install anything to use Unit Converter?

No. It works directly in your browser. Enter a value, choose the units, and review the converted result instantly.

Can I use Unit Converter on mobile?

Yes. Unit Converter works on modern mobile browsers. It is handy for quick conversions while shopping, cooking, traveling, or working away from your desk.

Why use Unit Converter on The Privacy Tools?

The Privacy Tools keeps utility tasks fast and browser-based. Unit Converter gives you quick conversions without an account wall, unnecessary tracking, or a bulky third-party workflow.

Features

10 Categories, 80+ Units

Length, Weight, Temperature, Volume, Area, Speed, Time, Data, Energy, and Pressure, covering metric, imperial, and scientific units.

Metric & Imperial

Full coverage of SI metric, US customary, and imperial units for accurate global conversions in any context.

Bidirectional Conversion

Type in either input and the other updates instantly. Use the swap button to flip the direction in one click.

Adjustable Precision

Choose 2, 4, 6, or 8 decimal places to match the level of accuracy your work requires.

Click to Copy Result

Copy any conversion result to your clipboard with the copy icon. No selecting text needed.

Conversion History

Session history tracks your last 10 conversions for easy reference during your work. Clears when you close the tab.

Use Cases

International Travel

Convert miles to kilometers, Fahrenheit to Celsius, gallons to liters, and pounds to kilograms before and during your trip.

Cooking & Recipes

Convert cups to milliliters, ounces to grams, and Fahrenheit to Celsius when following international recipes.

Engineering & Science

Convert between SI and imperial units for technical work, with high-precision output for scientific calculations.

Software Development

Convert data storage units (bits, bytes, KB, MB, GB, TB) when working with APIs, file sizes, and database capacities.

Fitness & Health

Convert body weight between kilograms, pounds, and stones, and distances between miles and kilometers for running and cycling.