Weight Converter
Convert weight and mass between kilograms, grams, pounds, ounces, metric tons and other common units.
Enter any value and instantly see its equivalent across metric and US customary weight units.
Convert Weight
Enter a weight value and select the unit you want to convert.
Weight Conversion Results
Weight Conversion Summary
Input Weight
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Kilograms
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Pounds
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Ounces
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Metric and US Customary Weight Units
Weight measurements are commonly expressed using metric units such as grams and kilograms, or US customary units such as pounds and ounces. This converter lets you compare these units easily.
| Unit | Symbol | Relationship |
|---|---|---|
| Milligram | mg | 1 mg = 0.001 g |
| Gram | g | 1 g = 0.001 kg |
| Kilogram | kg | Base metric unit used for everyday weight |
| Metric Ton | t | 1 t = 1,000 kg |
| Ounce | oz | 1 oz ≈ 28.3495 g |
| Pound | lb | 1 lb = 16 oz |
| Stone | st | 1 st = 14 lb |
Common Weight Conversions
| Conversion | Equivalent |
|---|---|
| 1 kg | 1,000 g |
| 1 kg | 2.20462 lb |
| 1 lb | 453.59237 g |
| 1 lb | 16 oz |
| 1 oz | 28.349523125 g |
| 1 metric ton | 1,000 kg |
| 1 stone | 6.35029 kg |
Weight Conversion Formula
The calculator first converts the entered value into kilograms. It then converts the kilogram value into all supported units.
1 kg = 1,000 g
1 kg = 1,000,000 mg
1 kg = 2.20462262185 lb
1 kg = 35.27396195 oz
1 kg = 0.157473044 st
Weight Conversion Example
Suppose you want to convert 70 kilograms into pounds and ounces.
70 kg ≈ 154.3236 lb
70 kg ≈ 2,469.1773 oz
The same 70 kg is equal to 70,000 grams and 0.07 metric tons.
Where Weight Conversion Is Useful
Weight conversion is useful when measurements are given in different units or when comparing metric and US customary measurements.
| Situation | Useful Units |
|---|---|
| Body weight | Kilograms, pounds |
| Cooking and food | Grams, kilograms, ounces, pounds |
| Shipping | Kilograms, pounds |
| Small quantities | Milligrams, grams, ounces |
| Heavy materials | Metric tons, kilograms |
Frequently Asked Questions
How many pounds are in 1 kilogram?
One kilogram equals approximately 2.20462 pounds.
How many kilograms are in 1 pound?
One pound equals exactly 0.45359237 kilograms.
How many grams are in 1 kilogram?
One kilogram contains exactly 1,000 grams.
How many ounces are in 1 pound?
One pound contains exactly 16 ounces.
How many grams are in 1 ounce?
One avoirdupois ounce equals approximately 28.3495 grams.
What is the difference between kg and lb?
A kilogram is a metric unit, while a pound is a US customary and imperial unit. One kilogram is approximately 2.20462 pounds.