SI prefix
Kilo, mega, giga
An SI prefix is a standardized prefix attached to metric units to indicate multiples or fractions of ten: kilo- (thousand), mega- (million), milli- (thousandth), micro- (millionth), and so on.
SI stands for Système International, the modern metric system.
A kilogram is a thousand grams.
Gigabytes replaced megabytes as storage grew.
Thousand-unit prefix
Size or scale
- orderMethodical arrangement or request
- powerEnergy transfer rate
- exponentSuperscript showing power
- factorContributor to result
multiplier · decimal · thousand · million · billion · trillion · thousandth · millionth
Metric unit, billion-fold smaller
- kilogramBase unit of mass
- milliliterCubic centimeter equivalent
- centimeterMetric length unit
- megahertzOne million oscillations per second
gigabyte · terawatt · picofarad · kilometer · microgram · megawatt · gigahertz · terabyte
Science of precise quantification
- calibrationAdjusting for measurement accuracy
- precisionAccuracy of measurement
- accuracyDegree of correctness
- standardizationImplementing uniform technical specifications
quantification · instrumentation · laboratory · systematic · international · convention · bureau · metric system
kilo
Thousand-unit prefix
magnitude
Size or scale
factor · multiplier · decimal · thousand · million · billion · trillion · thousandth · millionth · billionth
nanometer
Metric unit, billion-fold smaller
- kilogramBase unit of mass
- milliliterCubic centimeter equivalent
- centimeterMetric length unit
megahertz · gigabyte · terawatt · picofarad · kilometer · microgram · megawatt · gigahertz · terabyte · petabyte
metrology
Science of precise quantification
- calibrationAdjusting for measurement accuracy
- precisionAccuracy of measurement
- accuracyDegree of correctness
standardization · quantification · instrumentation · laboratory · systematic · international · convention · bureau · metric system
SI prefixbase unit
Fundamental defined quantity
fundamental unit · SI unit · meter · kilogram · second