Milli

Key Stage 3

Meaning

Milli is a Unit Prefix that means a number is 1000 times smaller than the normal unit.

About Milli

Milli can be shortened to a lower case m.

Examples

A millimetre (mm) is 1/1000th of a metre (m).

A millivolt (mV) is 1/1000th of a volt (V).

A milligram (mg) is 1/1000th of a gram (g).

An ant may be around 4 millimetres (4mm) long.

Converting from Milli

To convert from milli to the base unit you must divide by 1000. \[83000mm = \frac{83000}{1000}m = 83m\]

\[2600mA = \frac{2600}{1000}A = 2.6A\]

\[170mV = \frac{170}{1000}V = 0.17V\]

\[22mN = \frac{22}{1000}N = 0.022N\]

\[6mJ = \frac{6}{1000}J = 0.006J\]

Converting to Milli

To convert to milli from a base unit you must times by 1000. \[4m = 4\times1000mm = 4000mm\]

\[34A = 34\times1000mA = 24000mA\]

\[1.9V = 1.9\times1000mV = 1900mV\]

\[0.73N = 0.73\times1000mN = 730mN\]

\[0.092J = 0.092\times1000mJ = 92mJ\]

Key Stage 4

Meaning

Milli is a Unit Prefix that means a number is 10^-3 of the normal unit.

About Milli

Milli can be shortened to a lower case m.

Examples

A millimetre (mm) is 10^-3 metres (m).

A millivolt (mV) is 10^-3 volts (V).

A milligram (mg) is 10^-3 grams (g).

Converting from Milli

To convert from milli to the base unit you must times by 10^-3. \[83000mm = 83000\times10^{-3}m = 83m\]

\[2600mA = 2600\times10^{-3}A = 2.6A\]

\[170mV = 170\times10^{-3}V = 0.17V\]

\[22mN = 22\times10^{-3}N = 0.022N\]

\[6mJ = 6\times10^{-3}J = 0.006J\]

Converting to Milli

To convert to milli from a base unit you must times by 10³ because there are 1000 of them in the base unit. \[4m = 4}{10^{3}mm = 4000mm\]

\[34A = 34\times10^{3}mA = 24000mA\]

\[1.9V = 1.9\times10^{3}mV = 1900mV\]

\[0.73N = 0.73\times10^{3}mN = 730mN\]

\[0.092J = 0.092\times10^{3}mJ = 92mJ\]