Most Popular Unit Converters

Our comprehensive collection of free online unit converters makes converting between different measurement units quick and accurate. Whether you're a student, engineer, chef, or just need to convert measurements for everyday use, we have the tools you need.

Why Use Our Unit Converter Tools?

Instant Results

Get accurate conversions immediately as you type. Our real-time calculator provides instant feedback for all your measurement needs.

Mobile-Friendly Design

All our converters work perfectly on desktop, tablet, and mobile devices. Convert units anywhere, anytime.

40+ Conversion Tools

From basic length and weight to specialized electrical and thermal converters, we cover all measurement categories.

Always Free

No registration, no downloads, no limits. Our unit conversion tools are completely free to use forever.

Accurate Conversion Formulas

All our unit converters use scientifically accurate conversion formulas and factors. We source our conversion ratios from authoritative standards organizations to ensure precision in every calculation.

Common Conversion Examples

  • 1 meter = 3.28084 feet - Essential for construction and international measurements
  • 1 kilogram = 2.20462 pounds - Perfect for weight and fitness conversions
  • 0°C = 32°F - Water freezing point conversion for weather and cooking
  • 1 liter = 0.264172 gallons - Useful for fuel and liquid measurements
  • 1 inch = 2.54 centimeters - Standard for small measurements and crafts

Specialized Measurement Categories

Beyond basic conversions, we offer specialized tools for professional and technical applications:

Electrical Converters

Current, voltage, resistance, and conductivity converters for electrical engineering.

Thermal Converters

Heat transfer, thermal conductivity, and temperature-related professional tools.

Light & Optics

Luminance, illumination, and optical measurement converters.

Fluid Dynamics

Flow rate, viscosity, and fluid measurement conversion tools.