Universal Unit Converter

Convert between Length, Weight, Temperature and Volume with instant results.

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Unit Converter – Convert Any Measurement Instantly
Use our all-in-one Unit Conversion Calculator to transform between different systems of measurement. Whether it’s length, area, volume, temperature, mass, speed, power, or time, this tool provides fast, accurate and reliable conversions.

A unit converter allows you to transform values from one measurement unit to another of the same category. It follows the International System of Units (SI), though it also supports commonly used non-SI units such as inches, miles, gallons, pounds, Fahrenheit and more.

Examples of conversions:

  • Temperature: Celsius (°C) ↔ Fahrenheit (°F) ↔ Kelvin (K)
  • Length: Meters (m) ↔ Feet (ft) ↔ Inches (in) ↔ Miles (mi)
  • Mass: Kilograms (kg) ↔ Pounds (lb) ↔ Grams (g)
  • Speed: Kilometers/hour (km/h) ↔ Miles/hour (mph) ↔ Meters/second (m/s)

This tool is widely used in science, engineering, education and daily life.

Our online unit converter is simple and user-friendly:

  • Step 1: Enter the value you want to convert.
  • Step 2: Select the category (e.g., length, time, temperature).
  • Step 3: Choose the unit you are converting from.
  • Step 4: Choose the unit you are converting to.
  • Step 5: Get instant results — accurate and reliable.

Ideal for students, professionals and everyday users who need quick calculations.

Here are some of the most frequently used conversion categories in our tool:

  • Length & Distance: meters, kilometers, miles, feet, inches.
  • Area: square meters, hectares, acres, square feet.
  • Volume & Capacity: liters, milliliters, gallons, cups, teaspoons.
  • Mass & Weight: kilograms, grams, milligrams, pounds, ounces.
  • Temperature: Celsius, Fahrenheit, Kelvin.
  • Time: seconds, minutes, hours, days, weeks, years.
  • Speed & Velocity: m/s, km/h, mph, knots.
  • Power & Energy: watts, kilowatts, horsepower, joules.

Our tool also supports scientific notations (E) for very large or very small values — helpful for scientists, mathematicians and engineers.

Unit conversion is essential for:

  • Education – solving math and science problems.
  • Engineering & Science – precise calculations for experiments and projects.
  • Daily Life – cooking, shopping and travel conversions.
  • Business & Industry – standardizing international trade units.
  • Health & Fitness – converting calories, body weight, or distances.

Instead of memorizing formulas, the unit converter gives you instant results.

  • Supports hundreds of units across multiple categories.
  • Accurate, fast and reliable conversions.
  • Free to use — no registration needed.
  • Includes SI and non-SI units.
  • Mobile-friendly and works on any device.
  • Perfect for students, researchers, engineers and casual users.

Yes. The Unit Conversion Calculator is 100% secure. It does not collect or store any user data — all calculations happen instantly in your browser.