Below is a list of the currently supported SI unit prefixes and the strings that can be used when calling create() to access them. Please be aware that these prefixes only work on SI units.

• yocto: 1e-24 -> "y", "yocto", "Yocto"
• zepto: 1e-21 -> "z", "zepto", "Zepto"
• atto: 1e-18 -> "a", "atto", "Atto"
• femto: 1e-15 -> "f", "femto", "Femto"
• pico: 1e-12 -> "p", "pico", "Pico"
• nano: 1e-09 -> "n", "nano", "Nano"
• micro: 1e-06 -> "μ", "micro", "Micro"
• mili: 1e-03 -> "m", "mili", "Mili"
• centi: 1e-02 -> "c", "centi", "Centi"
• deci: 1e-01 -> "d", "deci", "Deci"
• : 1 -> "", None
• deca: 1e01 -> "da", "deca", "Deca"
• hecto: 1e02 -> "h", "hecto", "Hecto"
• kilo: 1e03 -> "k", "kilo", "Kilo"
• mega: 1e06 -> "M", "mega", "Mega"
• giga: 1e09 -> "G", "giga", "Giga"
• tera: 1e12 -> "T", "tera", "Tera"
• peta: 1e15 -> "P", "peta", "Peta"
• exa: 1e18 -> "E", "exa", "Exa"
• zetta: 1e21 -> "Z", "zetta", "Zetta"
• yotta: 1e24 -> "Y", "yotta", "Yotta"