Appendix E: Weights and Measures

 Mathematical Notation Mathematical Power Name 10^18 or 1,000,000,000,000,000,000 one quintillion 10^15 or 1,000,000,000,000,000 one quadrillion 10^12 or 1,000,000,000,000 one trillion 10^9 or 1,000,000,000 one billion 10^6 or 1,000,000 one million 10^3 or 1,000 one thousand 10^2 or 100 one hundred 10^1 or 10 ten 10^0 or 1 one 10-^1 or 0.1 one-tenth 10-^2 or 0.01 one-hundredth 10-^3 or 0.001 one-thousandth 10-^6 or 0.000 001 one-millionth 10-^9 or 0.000 000 001 one-billionth 10-^12 or 0.000 000 000 001 one-trillionth 10-^15 or 0.000 000 000 000 001 one-quadrillionth 10-^18 or 0.000 000 000 000 000 001 one-quintillionth

 Metric Interrelationships Prefix Symbol Length, weight, or capacity Area Volume exa E 10^18 10^36 10^54 peta P 10^15 10^30 10^45 tera T 10^12 10^24 10^36 giga G 10^9 10^18 10^27 mega M 10^6 10^12 10^18 hectokilo hk 10^5 10^10 10^15 myria ma 10^4 10^8 10^12 kilo k 10^3 10^6 10^9 hecto h 10^2 10^4 10^6 basic unit - 1 meter, 1 gram, 1 liter 1 meter^2 1 meter^3 deci d 10-^1 10-^2 10-^3 centi c 10-^2 10-^4 10-^6 milli m 10-^3 10-^6 10-^9 decimilli dm 10-^4 10-^8 10-^12 centimilli cm 10-^5 10-^10 10-^15 micro u 10-^6 10-^12 10-^18 nano n 10-^9 10-^18 10-^27 pico p 10-^12 10-^24 10-^36 femto f 10-^15 10-^30 10-^45 atto a 10-^18 10-^36 10-^54