Unit Converter
Convert between temperature, length, and weight units instantly.
Free Online Unit Converter
The Toolts Unit Converter handles the most common unit conversions for temperature, length, and weight. All conversions happen instantly as you type, with no need to press a button. The tool supports metric and imperial units and displays the conversion formula for educational reference.
Temperature Conversions
Convert between Celsius, Fahrenheit, and Kelvin. The most common conversions are Celsius to Fahrenheit (multiply by 9/5 and add 32) and Fahrenheit to Celsius (subtract 32 and multiply by 5/9). Kelvin is the SI unit of temperature and equals Celsius plus 273.15.
Length Conversions
Convert between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles. The most frequently searched conversions are miles to kilometers (multiply by 1.60934), feet to meters (multiply by 0.3048), and inches to centimeters (multiply by 2.54).
Weight Conversions
Convert between milligrams, grams, kilograms, metric tons, ounces, pounds, and stones. Common conversions include pounds to kilograms (multiply by 0.453592), kilograms to pounds (multiply by 2.20462), and stones to kilograms (multiply by 6.35029).