Size only relative to base unit

memorizing only the size for the 6 prefixes

kilo (k)

big

bigger than the base unit

deci (d)

smaller than the base unit

centi (c)

smaller than the base unit and smaller than deci

milli (m)

very small

much smaller than the base unit. smaller than deci and centi

micro (μ)

extremely small

extremely smaller than the base unit. smaller than deci, centi, and milli

nano (n)

microscopic

incredibly tiny compared to the base unit. smaller than deci, centi, milli, and micro