Practical Electronics/Tables

Both very large and very small numbers are common in electronic. To simplify writing these numbers there are several prefixes (known as metric prefixes) used to multiply the values of components. These values are shown in the table below. Text Symbol Factor Peta P 1000000000000000 Tera T 1000000000000 Giga G 1000000000 Mega M 1000000 Kilo k 1000 (none) (none) 1 Mili m 0.001 Micro μ 0.000001 Nano n 0.000000001 Femto f 0.000000000001 These prefixes are added before the units that describe a quantity and are case sensitive (mW does not equal MW).