Unit Converter
Convert any common unit.
Convert any common unit.
How to use Unit Converter
- Pick a category like length, weight, or temperature
- Choose your 'from' and 'to' units
- Enter a value and read the converted result
About Unit Converter
Unit Converter handles everyday measurement conversions across seven categories — length, weight, temperature, volume, area, speed, and data — with six to eight common units in each. Pick a category, choose your "from" and "to" units, type a value, and the result updates live as you type, with no calculate button to press. A Swap units button flips the two units instantly, so you can read a conversion in either direction. Because every category mixes metric and imperial units, it also works as a metric unit converter for jobs like meters to feet, kilograms to pounds, or Celsius to Fahrenheit.
If you came looking for a unit converter chart or conversion table, this does the same job interactively: instead of scanning rows for the closest number, you type your exact value and get a precise answer to several decimal places. Temperature uses the exact Celsius, Fahrenheit, and Kelvin formulas, and every other category converts through a shared base unit for accuracy. It also serves as a free online alternative to downloadable converter apps — nothing to install, no sign-up, and no usage limits.
Everything runs entirely in your browser, so the values you enter are never uploaded to a server. Open the page, convert as many units as you like, and close the tab when you're done — nothing you type is stored or sent anywhere.
Frequently asked questions
- Is the Unit Converter free to use?
- Yes, it is completely free with no sign-up, downloads, or usage limits. You can run as many conversions as you want.
- Is my data uploaded anywhere?
- No. All conversions happen locally in your browser, so nothing you type is ever sent to a server or stored.
- Which units can I convert?
- You can convert length, weight, temperature, volume, area, speed, and data, with six to eight common units in each category. Each category includes both metric and imperial options where they apply.
- Can I convert between metric and imperial units?
- Yes. Length, weight, volume, area, and speed each include metric and imperial units, so you can go from centimeters to inches, kilometers to miles, kilograms to pounds, or liters to gallons in one step.
- Is there a unit converter chart or conversion table?
- There is no static chart, but the converter replaces one. Instead of scanning a table for the nearest row, you type your exact value and read the precise result, then use Swap to check the reverse. It is faster than a printed chart for any number that isn't a round figure.
- How accurate are the conversions?
- Conversions use precise standard factors, and temperature uses the exact C/F/K formulas, giving results accurate to several decimal places.
- Can I convert temperature between Celsius, Fahrenheit, and Kelvin?
- Yes. The temperature category uses the exact conversion formulas, so results like 100°C to 212°F or 0°C to 273.15K are exact rather than approximated.
- Is this a free alternative to a desktop unit converter app?
- Yes. It runs in the browser with nothing to download or install and no account, so it handles the same everyday conversions as downloadable converter apps such as Wondershare Unit Converter, without any setup.
- Does it also work as a calculator?
- It calculates conversions automatically as you type, but it is not a general arithmetic calculator — it is built specifically to convert one unit to another. If you need to do math and convert, use it alongside a standard calculator.
- Do I need to click a button to convert?
- No. Results are calculated live as you type or change any unit, so there is no calculate button to press.
- Can I quickly reverse a conversion?
- Yes. Use the Swap units button to instantly switch the 'from' and 'to' units and see the reverse conversion.
- Do I need to install anything or create an account?
- No. It is a web page that works instantly — no installation, no sign-up, and no limit on how many conversions you can run.