Weight Converter
Convert weights between metric and imperial units. Supports kilograms, pounds, grams, ounces, tons, and more.
Common Weight Conversions
Metric to Imperial
| Metric | Imperial |
|---|---|
| 1 kilogram | 2.20462 pounds |
| 1 gram | 0.035274 ounces |
| 1 metric ton | 2,204.62 pounds |
Imperial to Metric
| Imperial | Metric |
|---|---|
| 1 pound | 0.453592 kilograms |
| 1 ounce | 28.3495 grams |
| 1 pound | 453.592 grams |
Understanding Weight Units
Metric System
- Metric Ton (t): 1,000 kilograms - Used for large vehicles and cargo
- Kilogram (kg): 1,000 grams - Base unit, used for body weight and groceries
- Gram (g): Base unit - Used for small items and food portions
- Milligram (mg): 1/1000 of a gram - Used for medications and supplements
Imperial System
- Pound (lb): 16 ounces - Used for body weight and large items
- Ounce (oz): Base unit - Used for food, mail, and small items
- Stone (st): 14 pounds - Used in UK for body weight
Common Uses for Weight Conversion
- Health & Fitness: Converting body weight between pounds and kilograms
- Cooking & Baking: Converting recipe measurements between grams and ounces
- Shipping: Understanding package weights for international shipping
- Science & Medicine: Converting medication dosages and lab measurements
- Travel: Understanding luggage weight limits in different countries
- Sports: Converting weights for weightlifting and equipment
Weight Conversion Formulas
- Kilograms to Pounds: multiply by 2.20462
- Pounds to Kilograms: multiply by 0.453592
- Grams to Ounces: multiply by 0.035274
- Ounces to Grams: multiply by 28.3495
- Pounds to Ounces: multiply by 16
- Kilograms to Grams: multiply by 1,000
Quick Reference Guide
Body Weight Conversions
| Pounds | Kilograms |
|---|---|
| 100 lb | 45.36 kg |
| 150 lb | 68.04 kg |
| 200 lb | 90.72 kg |
| 250 lb | 113.40 kg |
Features
⚖️ 6 Weight Units
Convert between kilograms, pounds, grams, ounces, tons, and more.
⚡ Instant Conversion
Results update automatically as you enter the weight value.
🎯 Accurate Results
Precise conversions using standard international weight conversion factors.
💯 100% Free
Unlimited conversions, no registration, completely free.
🔒 Privacy First
All calculations happen locally in your browser.
🌍 Global Support
Supports both metric and imperial weight systems.
Frequently Asked Questions
How many pounds are in a kilogram?
There are approximately 2.20462 pounds in one kilogram. For quick mental math, you can use 1 kg ≈ 2.2 lbs.
How many grams are in an ounce?
There are approximately 28.3495 grams in one ounce. For cooking, many people round this to 28 or 30 grams.
What's the difference between mass and weight?
Mass is the amount of matter in an object (measured in kg or g), while weight is the force of gravity on that mass (measured in Newtons). In everyday use, we often use "weight" to mean mass.
Why do some countries use pounds and others use kilograms?
Most countries use the metric system (kilograms), which was adopted internationally in the 1960s. The United States primarily uses the imperial system (pounds), though metric is used in science and medicine.
How do I convert my weight from pounds to kilograms?
Divide your weight in pounds by 2.20462. For example, 150 pounds ÷ 2.20462 = 68.04 kilograms. Or use our converter above for instant results!
Is a metric ton the same as a regular ton?
No. A metric ton (tonne) is 1,000 kg or about 2,204.62 pounds. A US ton (short ton) is 2,000 pounds. A UK ton (long ton) is 2,240 pounds.