Weight Conversion

Easily convert between different mass units with this simple and accurate tool. Enter a value, choose your units (Kilogram, Pound, Gram, Tonne, and more), and get instant results. Perfect for students, professionals, and everyday use.

Mass Conversion Reference

  • 1 kilogram (kg) = 1000 grams (g)
  • 1 tonne = 1000 kilograms (kg)
  • 1 pound (lb) = 0.45359237 kilograms (kg)
  • 1 stone = 14 pounds ≈ 6.35029 kilograms
  • 1 US ton = 2000 pounds ≈ 907.185 kilograms
  • 1 Imperial ton = 2240 pounds ≈ 1016.05 kilograms

Weight Measurement Across the Globe

Weight is measured differently across the world, depending on local systems of units. In most countries, weight is recorded in kilograms (kg) and grams (g) as part of the metric system, making it the global standard for science and health. However, in the United States and a few other regions, people commonly use pounds (lbs) and ounces (oz), following the imperial system. In the UK, while kilograms are officially recognized, traditional units like stones are still used in everyday conversations about body weight. These variations can sometimes cause confusion when comparing fitness goals, medical records, or travel baggage limits. That’s why weight conversion tools are essential for quickly switching between kilograms, pounds, and stones. Understanding these differences helps in tracking progress, following international health guidelines, and communicating weight accurately across cultures.

See our other free unit convertion tools such as Temperature Conversion, Length Conversion, Area Conversion, Volume Conversion and Pressure Conversion.