Orders of magnitude (mass)

The kilogram is the only standard unit to include an SI prefix (kilo-) as part of its name.

However, the names of all SI mass units are based on gram, rather than on kilogram; thus 103 kg is a megagram (106 g), not a *kilokilogram.

The tonne (t) is an SI-compatible unit of mass equal to a megagram (Mg), or 103 kg.

For subatomic particles, physicists use the mass equivalent to the energy represented by an electronvolt (eV).

Planck's law allows for the existence of photons with arbitrarily low energies.

An overview of ranges of mass
Scanning electron micrograph showing grains of sand
Iron weights up to 50 kilograms depicted in Dictionnaire encyclopédique de l'épicerie et des industries annexes .
Jupiter is the most massive planet in the Solar System .