Weight Converter

Weight Converter

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Weight converters on metric-conversions.org provide a convenient tool for converting between different units of weight in the metric system. Users can easily convert between grams, kilograms, milligrams, metric tons, pounds and stones and more with just a few clicks. Whether you need to convert a recipe from grams to kilograms or compare the weight of different objects in milligrams, the weight converters on this site make the process quick and simple.

Metric weight units are used to measure the mass or weight of objects in the metric system. The base unit of weight in the metric system is the kilogram (kg), which is equivalent to the weight of one cubic centimeter of water at 4 degrees Celsius. For smaller weights, the gram (g) is commonly used, with 1 kilogram equal to 1000 grams.

Other commonly used metric weight units include the milligram (mg), which is one-thousandth of a gram, and the metric tonne (t), which is equivalent to 1000 kilograms. Metric weight units are easy to convert between, as they follow a simple decimal system. For example, to convert from kilograms to grams, you simply multiply by 1000.

Imperial / English weight units are commonly used in the United Kingdom and other countries that were once part of the British Empire such as the USA. The most common units of weight in the Imperial system include the ounce, pound, stone, and ton. The ounce is the smallest unit of weight, with 16 ounces making up one pound. A pound is equivalent to 0.453592 kilograms and is often used to measure the weight of smaller items such as fruits and vegetables.

The stone is a larger unit of weight, with one stone equal to 14 pounds. It is commonly used to measure the weight of people in the UK, especially when discussing body weight.


The kilogram, often abbreviated as kg, is the base unit of mass in the International System of Units (SI). It is defined as the mass of the International Prototype of the Kilogram (IPK), a platinum-iridium alloy cylinder stored at the International Bureau of Weights and Measures in France. The kilogram is used worldwide as a standard unit of mass and is crucial in various fields such as science, industry, and commerce.

In everyday life, the kilogram is commonly used to measure the weight of objects such as fruits, vegetables, and household items. It is also used in scientific research, engineering, and manufacturing processes. The kilogram is a versatile unit of measurement that can be easily converted into smaller units such as grams or milligrams, or larger units such as metric tons.

To convert kilograms to pounds you must multiply the value by approximately 2.2.

To convert kilograms to stones you must divide the value by approximately 6.35. In this case it gives you a decimal value for stones which is generally not useful as most people use stones and pounds. If you use our converter this calculation will be done for you.


Pounds are a common unit of weight used in the United States, United Kingdom and some other countries, with the symbol "lb." One pound is equivalent to 0.45359237 kilograms in the metric system. The pound is further divided into 16 ounces, making it a versatile unit for measuring smaller quantities of weight as well.

In everyday life, pounds are often used to measure the weight of people, food items, and objects. For example, a typical adult human might weigh around 150 pounds, a bag of sugar might weigh 5 pounds, and a small pet might weigh 10 pounds. Pounds are also commonly used in sports and fitness to measure the weight of equipment like dumbbells or the weight of a person's body for tracking progress in weight loss or muscle gain.

To convert pounds to kilograms you must divide the value by approximately 2.2.


Stones, a unit of weight commonly used in the United Kingdom and Ireland, is a unique measurement that is not commonly found in other parts of the world. One stone is equivalent to 14 pounds, making it a convenient way to measure body weight or smaller items. The use of stones dates back to ancient times when stones were used as a standard unit for trading goods.

Despite its historical significance, the use of stones as a unit of weight has become less common in modern times, with kilograms and pounds being more widely used in most countries. However, stones are still used in some contexts, such as in the UK for measuring body weight or in the construction industry for measuring the weight of building materials.

To convert stones to kilograms you must multiply by a factor of 6.35


Grams are a unit of measurement commonly used to quantify the weight or mass of an object. One gram is equivalent to one thousandth of a kilogram, making it a small but precise unit for measuring lighter objects. The gram is part of the metric system, which is widely used around the world for its simplicity and consistency in conversions.

Grams are particularly useful for measuring ingredients in cooking and baking, as well as for determining the weight of small items such as jewelry, coins, or letters. In scientific settings, grams are often used to measure the mass of substances in chemical reactions or the weight of samples in laboratory experiments.

To convert grams to ounces, you must divide by about 28.35.


Ounces are a commonly used unit of weight in the imperial system of measurement, with one ounce being equivalent to approximately 28.35 grams. This unit is often used to measure smaller quantities of weight, such as food ingredients in recipes or personal items like jewelry.

To convert ounces to grams, one must multiply by 28.35

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