Weight Converter
Convert between Metric and Imperial weight units instantly. Type a value in any field below to see conversions update in real time.
Understanding Weight and Mass Units
Mass is the amount of matter in an object, while weight is the force exerted on that matter by gravity. In everyday transactions and physics calculations, weight and mass units are converted relative to each other using the Metric System and Imperial System.
Metric Weight Units
- Kilogram (kg): The base unit of mass in the International System of Units (SI).
- Gram (g): Defined as one thousandth of a kilogram (1 kg = 1,000 g).
- Milligram (mg): Used for measuring very small quantities, representing one thousandth of a gram (1 g = 1,000 mg).
Imperial Weight Units
- Pound (lb): The primary unit of weight in the US customary system. Under international agreements, 1 pound is officially defined as exactly 0.45359237 kilograms (approx. 0.454 kg).
- Ounce (oz): A smaller Imperial unit of mass, equal to 1/16 of a pound or approximately 28.35 grams.
Weight Conversion Ratios
| Base Unit | Target Unit | Ratio |
|---|---|---|
| 1 Kilogram (kg) | Grams (g) | 1 kg = 1,000 g |
| 1 Gram (g) | Milligrams (mg) | 1 g = 1,000 mg |
| 1 Kilogram (kg) | Pounds (lb) | 1 kg = 2.205 lb |
| 1 Pound (lb) | Kilograms (kg) | 1 lb = 0.454 kg |
| 1 Ounce (oz) | Grams (g) | 1 oz = 28.35 g |
Frequently Asked Questions (FAQ)
How many grams are in a kilogram?
There are exactly 1,000 grams in 1 kilogram.
How many milligrams are in a gram?
There are exactly 1,000 milligrams in 1 gram.
What is the formula to convert kilograms to pounds?
To convert kilograms to pounds, multiply the kilogram value by 2.20462. For example, 10 kilograms is approximately 22.046 pounds.
How do you convert pounds to kilograms?
To convert pounds to kilograms, multiply the pound value by 0.45359 (or divide by 2.20462). For example, 100 pounds is approximately 45.359 kilograms.
How many grams are in an ounce?
There are approximately 28.35 grams in 1 ounce.