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Metric System: Units | Prefixes | Conversions
Metric Conversions
Below are the factors for converting between SI units and some non-SI units commonly used in the U.S. A large number of other conversion factors exist, far too many to list here. See Appendix B of the NIST Special Publication 811, Guide for the Use of the International System of Units (SI). Factors in bold are exact. All other factors have been rounded to the significant digits given.