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Weight Converter

Convert between grams, kilograms, pounds, ounces, stones, tons, and more.

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Weight (Mass) Conversion Guide – Kilograms, Pounds, Grams, Ounces & More

Weight Conversion Quick Reference Sheet.

Have you ever feel confused about weights? Indeed, we all can relate. In order to easily switch between kg (kilograms), g (grams), lb (pound), oz (ounces), st (stones), and t (ton or tonne), use this handy guide. It's really convenient honestly. Cooking a dish? Monitoring your fitness? Performing a Rapid Science Experiment? Or even results when we deal with their trade stuff? This manual has everything you need. No hassle, no tricky diagrams. Convenient conversions that don't take long to do.

  • One Kilogram of an Object Is Equal to 1,000 Grams.
  • One lb is equal to 16 oz, or 0.45 kg.
  • 28.35 grams are equivalent to 1 ounce.
  • The weight of stone in kg is 6.35029 kg.
  • A metric tonne (t) is equal to 1000 kilograms (kg).
  • A US short ton weighs approximately 907 kilograms or 2000 pounds.
  • A UK ton is equivalent to about 1016 kilograms or 2240 pounds.
  • 1 ct equals 0.2 g.
  • 1 metric tonne (t) = 1000 kilograms (kg)
  • 1 US ton (short) = 2000 pounds (lb)907.185 kilograms (kg)
  • 1 UK ton (long) = 2240 pounds (lb)1016.05 kilograms (kg)
  • 1 carat (ct) = 0.2 grams (g)
How Weight Conversions Are Calculated

Weight and mass conversions are calculated using a base unit, the kilogram (kg). The input value is first converted into kilograms using a known conversion factor, and then from kilograms into the target unit. This two-step conversion method assures you utmost accuracy in any units, ranging from grams and ounces to pounds and tons.

Examples: 1 lb × 0.453592 = 0.453592 kg; 1 oz × 28.3495 = 28.3495 g; 1 st = 14 lb ≈ 6.35029 kg.
When to Use Each Weight Unit
  • Grams (g) / Kilograms (kg): Common in science, nutrition, packaging, and most countries using the metric system.
  • Ounces (oz) / Pounds (lb) / Stones (st): Used for food measurements, fitness tracking, and body weight in the US and UK.
  • Tonnes (t) / Tons (US/UK): Ideal for heavy loads, shipping, and industrial use.
  • Carat (ct), Grain (gr), Dram (dr): Used in jewelry (carat), ammunition (grain), and pharmaceuticals (dram).

Tip: For international conversions, always check whether the measurement follows the metric or imperial system.

Weight – Full History