Convert between kilograms (kg), pounds (lbs), grams (g), ounces (oz), stones (st), and metric tons (t). Perfect for fitness, cooking, shipping, and science.
Our free weight converter helps you quickly convert between metric and imperial weight units including kilograms (kg), pounds (lbs), grams (g), ounces (oz), stones (st), and metric tons (t). Whether you're tracking your fitness progress, following a recipe, calculating shipping costs, or conducting scientific experiments, this tool provides instant, accurate results.
The metric system uses the gram (g) as the base unit for mass/weight. The kilogram (kg) is the SI base unit of mass and is used worldwide for most weight measurements.
The imperial system is primarily used in the United States for body weight, food, and everyday items:
To convert kilograms to pounds, multiply the number of kilograms by 2.20462. For example, 10 kg × 2.20462 = 22.0462 pounds.
To convert pounds to kilograms, multiply the number of pounds by 0.453592. For example, 10 lb × 0.453592 = 4.53592 kilograms.
To convert grams to ounces, multiply the number of grams by 0.035274. For example, 100 g × 0.035274 = 3.5274 ounces.
To convert ounces to grams, multiply the number of ounces by 28.3495. For example, 5 oz × 28.3495 = 141.7475 grams.
There are approximately 2.20462 pounds (lbs) in 1 kilogram (kg).
There are approximately 28.3495 grams (g) in 1 ounce (oz).
There are approximately 6.35029 kilograms in 1 stone (st). Stone is commonly used for body weight in the UK and Ireland.
There are 14 pounds (lb) in 1 stone (st).
Mass is the amount of matter in an object and stays constant regardless of location. Weight is the force exerted by gravity on that mass and can vary based on gravitational pull. However, for everyday use on Earth, the terms are often used interchangeably.
Track your body weight, calculate BMI, convert between kg and lb for weightlifting, and monitor fitness progress with our accurate weight converter.
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