SI Units & Conversions

SI base quantity

Symbol

Name of SI unit

Symbol for unit

Mass

m

Kilogram

kg

Length

l

Meter

m

Time

t

Second

s

Temperature

T

Kelvin

K

Amount of substance

n

Mole

mol

Electric current

I

Ampere

A

Prefix

Symbol

Power

Giga

G

10⁹

Mega

M

10⁶

Kilo

k

10³

Hecto

h

10²

Deca

da

10¹

Base Unit

10⁰

Deci

d

10^-1

Centi

c

10^-2

Milli

m

10^-3

Micro

µ

10^-6

Nano

n

10^-9

Pico

p

10^-12

Femto

f

10^-15