Kilogram (kg)
The kilogram is a unit of weight, used for body weight, grocery shopping, scientific research, and international trade. Its symbol is kg.
kg
lb
1 kilogram equals
| Pounds | 2.20462 lb |
| Ounces | 35.274 oz |
| Grams | 1,000 g |
About the kilogram
The kilogram was originally defined in 1795 as the mass of one liter of water at 4 degrees Celsius. In 2019, it was redefined using the Planck constant.
In everyday use the kilogram appears in body weight, grocery shopping, scientific research, and international trade. As a point of reference: a liter of water weighs exactly 1 kilogram.