Unit Converter
Convert length, weight, volume and area units instantly. Pick a measurement type, choose your "from" and "to" units, and the result updates live as you type — all calculated in your browser.
How to Use the Unit Converter
- Choose a measurement type: Length, Weight, Volume or Area.
- Select the unit you're converting from, and the unit you want to convert to.
- Type the value you want to convert — the result updates instantly.
- Click "Swap Units" to quickly reverse the conversion direction.
Why Use This Tool?
How accurate are these conversions?
This tool uses standard, internationally recognized conversion factors (e.g. 1 inch = 2.54 cm exactly, 1 pound = 453.592 grams) so results are accurate to at least 6 significant figures — precise enough for cooking, DIY, school work, shipping and everyday engineering estimates.
Which units are supported?
Length: millimeters, centimeters, meters, kilometers, inches, feet, yards and miles. Weight: milligrams, grams, kilograms, ounces, pounds and metric tons. Volume: milliliters, liters, US gallons, quarts, pints, cups and fluid ounces. Area: square meters, square kilometers, square feet, square yards, acres and hectares.
Is this tool free and does it store my data?
Yes, completely free with no signup. All math runs locally in your browser via JavaScript — nothing you type is uploaded, logged or stored anywhere.