Universal Unit Converter
Easily convert between 50+ metric and imperial units. Whether you need to translate kilometres to miles for travel, kilograms to pounds for fitness, or Celsius to Fahrenheit for cooking, our universal converter provides instant, scientifically accurate results.
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The Ultimate Guide to Unit Conversion
Navigating between different measurement systems is a daily necessity for professionals, students, travelers, and home cooks. Whether you are attempting to understand speed limits in a foreign country, converting a baking recipe from cups to millilitres, or interpreting technical specifications, an accurate unit converter is indispensable. Our tool bridges the gap between the Metric System (used by 95% of the world) and the Imperial System (predominantly used in the United States, Liberia, and Myanmar).
Understanding the Metric vs. Imperial Systems
The Metric system is a decimal-based system of measurement. Because it is based on multiples of ten, converting within the metric system is as simple as moving a decimal point. For example, there are exactly 1,000 metres in a kilometre, and 1,000 grams in a kilogram.
Conversely, the Imperial system is rooted in historical measurements and relies on fractions and irregular scales. There are 12 inches in a foot, 3 feet in a yard, and 5,280 feet in a mile. This complexity is why relying on an automated, scientifically accurate unit calculator is essential for avoiding costly miscalculations in engineering, dosage, or construction.
Popular Daily Conversions
Length & Distance
- 1 Mile = 1.60934 Kilometres
- 1 Foot = 30.48 Centimetres
- 1 Inch = 2.54 Centimetres
Weight & Mass
- 1 Kilogram = 2.20462 Pounds
- 1 Ounce = 28.3495 Grams
- 1 Stone = 14 Pounds (6.35 kg)
How Temperature Conversion Works
Temperature is unique because it cannot be converted by simple multiplication. The scales (Celsius, Fahrenheit, and Kelvin) do not share the same "zero" point.
- Celsius to Fahrenheit: Multiply the Celsius temperature by 1.8 (or 9/5) and add 32. Formula:
(°C × 1.8) + 32 = °F - Fahrenheit to Celsius: Subtract 32 from the Fahrenheit temperature, then divide by 1.8. Formula:
(°F - 32) / 1.8 = °C - Kelvin: Used primarily in physical sciences, Kelvin represents absolute temperature. Zero Kelvin is absolute zero. Formula:
°C + 273.15 = K
📖 How to Use the Unit Converter
Select a Category
Click a category tab — Length, Weight, Temperature, Volume, Area, Speed, Time or Digital Storage.
Enter Value & Units
Type your number, choose the unit you are converting from, and select the unit you want to convert to.
See All Results
Your result appears instantly. The full table below shows your value converted into every unit in that category at once.