straighten Unit Converter

About the Unit Converter

Convert between hundreds of different units across 10 categories with our free online unit converter. Whether you need to convert length, weight, temperature, volume, or any other measurement, this tool provides instant, accurate results with full precision.

Supported Categories

• Length — Meters, feet, inches, miles, kilometers, yards, nautical miles, and more
• Weight/Mass — Kilograms, pounds, ounces, grams, tons, stones, and more
• Temperature — Celsius, Fahrenheit, Kelvin, and Rankine
• Volume — Liters, gallons, cups, milliliters, cubic meters, and more
• Area — Square meters, square feet, acres, hectares, and more
• Speed — Miles per hour, kilometers per hour, meters per second, knots
• Time — Seconds, minutes, hours, days, weeks, months, years
• Data — Bytes, kilobytes, megabytes, gigabytes, terabytes, bits
• Pressure — Pascal, bar, PSI, atmosphere, torr, mmHg
• Energy — Joules, calories, kilowatt-hours, BTU, electronvolts

Features

• Instant Conversion — Results update as you type
• All Units View — See your value converted to all available units at once
• Swap Units — Quickly reverse the conversion direction
• Formula Display — See the mathematical formula used for each conversion
• High Precision — Accurate results with full decimal precision
• Quick Reference — Common conversion factors and relationships

Common Conversions

Temperature Formulas

• Celsius to Fahrenheit: °F = (°C × 9/5) + 32
• Fahrenheit to Celsius: °C = (°F - 32) × 5/9
• Celsius to Kelvin: K = °C + 273.15
• Kelvin to Celsius: °C = K - 273.15

Privacy

All conversions are performed entirely in your browser. Your data is never sent to any server.