Gram to Kilogram Converter

A gram (g) is a unit of mass in the metric system equal to one-thousandth of a kilogram (0.001 kg). It is commonly used for measuring small quantities and lightweight objects.

The gram was originally defined in 1795 as the mass of one cubic centimeter of water at 4°C. The name comes from the Greek word 'gramma' meaning 'small weight'. It was part of the original metric system and has remained a fundamental unit for small mass measurements.

Grams are extensively used for measuring food ingredients in cooking and baking, medication dosages, jewelry, precious metals, and small consumer products. They're standard in nutrition labels, pharmaceutical prescriptions, and scientific measurements for lightweight materials.

A kilogram (kg) is the base unit of mass in the International System of Units (SI), equal to 1,000 grams. It is defined by the Planck constant and represents the mass of the International Prototype of the Kilogram.

The kilogram was originally defined in 1795 as the mass of one liter of water at 4°C. It was later redefined using a physical prototype - a platinum-iridium cylinder kept in France. In 2019, it was redefined using fundamental physical constants, specifically the Planck constant, making it more precise and universal.

Kilograms are universally used for measuring body weight, food quantities, luggage weight, and in scientific applications. It's the standard unit for mass in most countries worldwide, used in commerce, medicine, sports, and engineering. All other metric mass units are derived from the kilogram.