Weight Converter | Convert mg, g, kg, tons, ounces, pounds, stones
Free online weight converter. Convert between milligrams, grams, kilograms, metric tons, ounces, pounds, and stones. Accurate weight measurement conversion tool.
Free Online Weight Converter
Our weight converter tool allows you to instantly convert between different units of weight measurement. Whether you need to convert kilograms to pounds for shipping, grams to ounces for cooking, or stones to kilograms for health tracking, our tool provides accurate results in real-time.
Supported Weight Units
Metric System
- Milligram (mg) 1/1000 of a gram
- Gram (g) Base unit
- Kilogram (kg) 1000 grams
- Metric Ton (t) 1000 kilograms
Imperial System
- Ounce (oz) 1/16 of a pound
- Pound (lb) 16 ounces
- Stone (st) 14 pounds
How to Use the Weight Converter
- Enter the value - Type the number you want to convert in the "Convert From" field
- Select "From" unit - Choose the unit you're converting from (e.g., kilograms)
- Select "To" unit - Choose the unit you want to convert to (e.g., pounds)
- Get instant results - The converted value appears automatically
- Use quick values - Click on common values like "1 pound" or "100 grams" for quick conversion
Common Weight Conversion Examples
| Conversion | Formula | Example |
|---|---|---|
| Kilograms to Pounds | kg × 2.20462 = pounds | 5 kg = 11.0231 pounds |
| Grams to Ounces | g × 0.035274 = ounces | 100 g = 3.5274 ounces |
| Pounds to Kilograms | pounds × 0.453592 = kg | 10 pounds = 4.53592 kg |
| Ounces to Grams | ounces × 28.3495 = g | 8 ounces = 226.796 g |
| Stones to Kilograms | stones × 6.35029 = kg | 2 stones = 12.7006 kg |
Practical Applications
👨🍳 Cooking & Baking
Convert recipe measurements between grams, ounces, pounds, and kilograms for accurate cooking results.
🚚 Shipping & Logistics
Convert package weights between kilograms and pounds for international shipping calculations.
⚕️ Health & Fitness
Convert body weight between kilograms, pounds, and stones for health tracking and fitness goals.
🏫 Education & Science
Convert between metric and imperial weight units for scientific experiments and educational purposes.
Weight Measurement Systems
Metric System
The metric weight system is based on the gram as the fundamental unit. All other metric weight units are derived from the gram using powers of ten, making conversions very simple.
- Used in most countries worldwide
- Based on powers of 10 (decimal system)
- Standard for scientific and medical use
- Easy to convert between units (1000 mg = 1 g, 1000 g = 1 kg)
Imperial System
The imperial weight system is primarily used in the United States and, to a lesser extent, in the United Kingdom. It uses ounces, pounds, and stones as its main weight units.
- Primarily used in the United States
- Based on historical units
- Conversions use fractions (16 ounces = 1 pound, 14 pounds = 1 stone)
- Common in everyday use in some countries
💡 Conversion Tips
- Quick kg to pounds: Multiply kilograms by 2.2 to get pounds
- Quick pounds to kg: Divide pounds by 2.2 to get kilograms
- Quick grams to ounces: Divide grams by 28 to get ounces
- Quick ounces to grams: Multiply ounces by 28 to get grams
- For precise calculations, always use our converter tool
Start Converting Now!
Try our weight converter with these common conversions: