Free Unit Converters
49 free tools. All processing happens in your browser. No signup. No tracking.
⭐ Most Popular
Currency Converter
Convert between 30+ world currencies using mid-market exchange rates. Free, instant, priva
Length Converter
Convert between metric and imperial length units. Millimeters to miles and everything betw
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin. Instant results with formula explanation.
Weight Converter
Convert between weight and mass units. Metric and imperial. Milligrams to tons. Free, inst
Data Storage Converter
Convert between data storage units. Bits, bytes, kilobytes, megabytes, gigabytes, terabyte
Speed Converter
Convert between speed units. Meters per second, kilometers per hour, miles per hour, knots
Unit Converter
Convert length, weight, temperature, area, volume, speed.
💾 Data & Digital
HTML to Markdown Converter
Convert HTML to clean Markdown text. Strips tags and preserves structure. Live preview. Fr
Markdown to HTML Converter
Convert Markdown to HTML instantly. Headers, lists, links, code blocks, tables. Live previ
Text to Binary Converter
Convert text to binary and binary to text. 8-bit representation. Free, instant, private.
JSON to YAML Converter
Convert JSON to YAML and YAML to JSON. Two-way conversion. Free, instant, private. No serv
YAML to JSON Converter
Two-way YAML-JSON conversion with validation. Convert YAML to JSON and JSON to YAML. Brows
JSON to XML Converter
Convert JSON to XML with custom root/item element names. Pretty-print output. Download as
XML to JSON Converter
Convert XML to JSON with pretty-print. Handles attributes, nested elements, CDATA. Downloa
🔄 Other
Shoe Size Converter
Convert shoe sizes between US, UK, European, Japanese, and centimeter measurements. Men's
Frequency Converter
Convert between frequency units. Hertz, kilohertz, megahertz, gigahertz, RPM. Free, instan
Energy Converter
Convert between energy units. Joules, kilojoules, calories, kilocalories, watt-hours, kilo
Pressure Converter
Convert between pressure units. Pascal, kilopascal, bar, PSI, atmosphere, mmHg. Instant, f
Power Converter
Convert between power units. Watts, kilowatts, horsepower (mechanical and metric), BTU per
Angle Converter
Convert between angle units. Degrees, radians, gradians (gons). Free, instant, private.
Torque Converter
Convert torque between Newton-meters, foot-pounds, inch-pounds, and kilogram-meters. Insta