Weight Converter
The weight converter allows you to quickly and accurately convert between the most common units of mass and weight. Whether you're working with kilograms, grams, pounds, ounces, or tons, this tool handles the math instantly.
Weight conversions are essential in cooking, shipping, fitness, science, and everyday shopping. With different countries using metric and imperial systems, the ability to convert between them is a crucial practical skill for professionals and travelers alike.
How it works
Weight conversions use standardized factors. All units are converted through a base unit (kilograms). For example: 1 pound = 0.45359237 kg, 1 ounce = 0.028349523125 kg, 1 stone = 6.35029318 kg. To convert between any two units, the value is first converted to kilograms, then to the target unit.
Use cases
- Converting recipe ingredients between metric and imperial measurements
- Calculating shipping weights for international packages
- Tracking fitness progress across different weight systems
- Converting product weights for international trade and commerce
Frequently asked questions
How many grams are in a kilogram?
There are exactly 1,000 grams in 1 kilogram, since the prefix kilo means one thousand. To convert kilograms to grams, multiply by 1,000; to go from grams to kilograms, divide by 1,000. For example, 2.5 kg equals 2,500 g.
How many pounds are in a kilogram?
One kilogram equals approximately 2.20462 pounds, because 1 pound is defined as exactly 0.45359237 kg. To convert kilograms to pounds, multiply by 2.20462; to convert pounds to kilograms, multiply by 0.45359237. So 10 kg is about 22.05 lb.
How many ounces are in a pound?
There are exactly 16 ounces in 1 pound in the avoirdupois system used for everyday weight. One ounce equals about 28.35 grams. To convert pounds to ounces, multiply by 16; to convert ounces to pounds, divide by 16.
What is a stone in weight?
A stone is a British imperial unit equal to 14 pounds, or about 6.35029 kilograms. It is still commonly used in the UK and Ireland to express body weight. For example, 11 stone equals 154 pounds or roughly 70 kg.
How do you convert kilograms to pounds and ounces?
First multiply the kilograms by 2.20462 to get total pounds. Take the whole-number part as pounds, then multiply the decimal remainder by 16 to get the ounces. For example, 3 kg is about 6.614 lb, which is 6 pounds and roughly 9.8 ounces.