Overview#

International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the "metric" Unit of measurement system.

International System of Units is a coherent system of units of measurement starting with seven SI Base Units

International System of Units magnitudes of all SI units have been defined by declaring that seven SI Defining Constants have certain exact numerical values when expressed in terms of their SI units.

Standard prefixes for the SI units of measure#

Submultiples#

Prefix name	deci	centi	milli	micro	nano	pico	femto	atto	zepto	yocto
Prefix symbol	d	c	m	μ	n	p	f	a	z	y
Factor	100	10-1	10-2	10-3	10-6	10-9	10-12	10-15	10-18	10-21	10-24

More Information#

There might be more information for this subject on one of the following:

• Atto
• Byte
• Centi
• Deca
• Deci
• Exa
• Femto
• Giga
• Hecto
• Kilo
• Kilogram
• Length
• Mass
• Mega
• Meter
• Micro
• Milli
• Mole
• Nano
• Number
• Peta
• SI
• SI Base Unit
• SI Derived Unit
• Tera
• Work
• Year
• Yocto
• Yotta
• Zepto
• Zetta

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• [#1] - SI_base_unit - based on information obtained 2022-05-27