SI Prefixes

ID

Unit (symbol)

Definition

Wikipedia page and other notes

1

quecto (q)

10-30

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

2

ronto (r)

10-27

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

3

yocto (y)

10-24

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

4

zepto (z)

10-21

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

5

atto (a)

10-18

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

6

femto (f)

10-15

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

7

pico (p)

10-12

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

8

nano (n)

10-9

https://en.wikipedia.org/wiki/Nano-

9

micro (μ)

10-6

https://en.wikipedia.org/wiki/Micro-

10

milli (m)

10-3

https://en.wikipedia.org/wiki/Milli-

11

centi (c)

10-2

https://en.wikipedia.org/wiki/Centi-

12

deci (d)

10-1

https://en.wikipedia.org/wiki/Deci-

13

one (1)

1

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

14

deca (da)

10

https://en.wikipedia.org/wiki/Deca-

15

hecto (h)

102

https://en.wikipedia.org/wiki/Hecto-

16

kilo (k)

103

https://en.wikipedia.org/wiki/Kilo-

17

mega (M)

106

https://en.wikipedia.org/wiki/Mega-

18

giga (G)

109

https://en.wikipedia.org/wiki/Giga-

19

tera (T)

1012

https://en.wikipedia.org/wiki/Tera-

20

peta (P)

1015

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

21

exa (E)

1018

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

22

zetta (Z)

1021

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

23

yotta (Y)

1024

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

24

ronna (R)

1027

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes

25

quetta (Q)

1030

https://en.wikipedia.org/wiki/Metric_prefix#List_of_SI_prefixes