1 kilogram in grams

Conversion

1 kilogram is equivalent to 1000 grams.^[1]

Conversion in the opposite direction

The inverse of the conversion factor is that 1 gram is equal to 0.001 times 1 kilogram.

It can also be expressed as: 1 kilogram is equal to $\frac{1}{0.001}$ grams.

Approximation

An approximate numerical result would be: one kilogram is about one thousand grams, or alternatively, a gram is about zero times one kilogram.

Units involved

This is how the units in this conversion are defined:

Kilograms

The kilogram is the base unit of mass in the International System of Units (the Metric system) and is defined as being equal to the mass of the International Prototype of the Kilogram. The avoirdupois (or international) pound, used in both the imperial and US customary systems, is defined as exactly 0.45359237 kg, making one kilogram approximately equal to 2.2046 avoirdupois pounds. Other traditional units of weight and mass around the world are also defined in terms of the kilogram, making the IPK the primary standard for virtually all units of mass on Earth.

Wikipedia page of kilograms

Grams

The gram is a metric system unit of mass. Originally defined as the absolute weight of a volume of pure water equal to the cube of the hundredth part of a metre, and at the temperature of melting ice. However, a gram is now defined as one one-thousandth of the SI base unit, the kilogram, or 1×10−3 kg, which itself is now defined, not in terms of grams, but as being equal to the mass of a physical prototype of a specific alloy kept locked up and preserved by the International Bureau of Weights and Measures. This is in the tradition by which many customary local reference standard stones, lengths (objects) and weights were required to periodically undergo comparison with the official nations standard referents, usually with a particular periodicity defined by the countries statuate laws.

Wikipedia page of grams

Footnotes

[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).

Results may contain small errors due to the use of floating point arithmetic.