How does the conversion calculator work?

Simply choose a category, select your units, enter a number, and the calculator instantly converts it using scientific formulas.

Yes, the conversion calculator is completely free and does not send any data to servers. Everything runs locally on your device.

Can I use the converter offline?

Yes. Once the page is loaded, the tool works fully offline because all logic runs in your browser.

Conversion Calculator

Convert between commonly used units. Choose a category, select units, enter a value, and instantly get the result.

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What is a Conversion Calculator?

A conversion calculator is a tool that allows you to convert one unit of measurement into another. Whether you need to convert meters to feet, kilograms to pounds, Celsius to Fahrenheit, liters to gallons or square meters to square feet, this flexible calculator makes the process quick and accurate.

How does this unit converter work?

This converter uses verified mathematical formulas to translate values between different measurement systems including metric (SI), imperial, and US customary units. Select a category such as Length, Temperature, Area, Volume or Weight — choose your units — enter a value — and get the converted result instantly. All calculations are processed locally in your browser for maximum privacy and speed.

Supported unit categories

Length: meter, kilometer, centimeter, inch, foot, yard, mile, nautical mile, light year
Temperature: Celsius, Fahrenheit, Kelvin
Weight: kilogram, gram, milligram, pound, ounce, stone, tonne
Volume: liter, milliliter, gallon (US), cup, pint, quart, cubic meter
Area: square meter, hectare, acre, square kilometer, square mile, square foot

Why use an online unit converter?

Unit conversions are extremely common in science, engineering, travel, cooking, fitness and everyday life. Instead of memorizing formulas or manually typing calculations, this tool gives you the correct result immediately. It’s perfect for students, professionals, travelers, DIY projects and anyone who needs fast, accurate conversions.

Is this conversion tool free?

Yes — this conversion calculator is completely free to use and does not require registration. It also does not send any data to a server. Everything happens directly on your device.

Frequently Asked Questions

Do I need an internet connection?

No. The tool works fully offline once the page is loaded.

How accurate are the conversions?

All calculations use standard scientific conversion constants. You can also choose the output precision: 0, 2, 4 or 6 decimals.

Can I copy results?

Yes — just press the “Copy” button next to the result.

What browsers are supported?

All modern browsers including Chrome, Safari, Edge and Firefox.