Weight Converter

Convert between metric (mg, g, kg) and imperial (oz, lbs, stone) weight units with precise calculations for all your measurement needs.

⚖️ Weight Conversion

📊 Common Examples

📚 Weight Units Guide

Milligram (mg)

1/1000 of a gram. Used for very small weights.

Examples: Medication doses, vitamins, small chemicals

Gram (g)

Base unit of mass in the metric system.

Examples: Food ingredients, small objects, jewelry

Kilogram (kg)

1000 grams. Standard unit for everyday weights.

Examples: Body weight, luggage, groceries

Ounce (oz)

1/16 of a pound. Common in cooking and postal.

Examples: Food portions, small packages, liquids

Pound (lb)

16 ounces. Primary imperial weight unit.

Examples: Body weight in US, food packages

Stone (st)

14 pounds. Traditional British weight unit.

Examples: Body weight in UK, historical measurements

🌍 Weight Facts

Human Weight

Average adult weight varies globally: 60-80 kg (132-176 lbs) depending on region and demographics.

Gravity Effect

Weight changes with gravity. You would weigh about 1/6th on the Moon compared to Earth.

Mass vs Weight

Mass is constant, but weight varies with gravity. We commonly use "weight" for both concepts.

Precision Medicine

Drug dosages are often calculated in milligrams per kilogram of body weight.

🔄 Quick Reference

Common Metric Conversions

  • 1 kg = 1,000 g = 1,000,000 mg
  • 1 g = 1,000 mg
  • 1 tonne = 1,000 kg

Common Imperial Conversions

  • 1 lb = 16 oz
  • 1 stone = 14 lbs
  • 1 ton (US) = 2,000 lbs

Metric ↔ Imperial

  • 1 oz = 28.35 g
  • 1 lb = 453.6 g = 0.454 kg
  • 1 kg = 2.205 lbs
  • 1 stone = 6.35 kg