fermi = 0.000000000000001 meter
Try converting from "fermi" to arpentcan, barleycorn, bottom measure, cable length, cloth quarter, digitus (Roman digitus), en (typography en), engineers chain, league, li (Chinese li), light yr (light year), m (meter), mil, parasang, rod (surveyors rod), Roman foot, rope, stadia (Greek stadia), sun (Japanese sun), vara (Mexican vara), or any combination of units which equate to "length" and represent depth, fl head, height, length, wavelength, or width.
fermi = 5.51E-13 agate (typography agate), 1.09E-17 city block (informal), 8.75E-16 ell, 5.47E-16 fathom, 3.28E-15 foot, 1.09E-17 football field, 4.97E-18 furlong (surveyors furlong), 1.55E-18 li (Chinese li), 4.97E-15 link (surveyors link), 1.00E-15 m (meter), 6.21E-19 mile, 5.40E-19 nautical mile, 1.31E-15 pace, 3.24E-32 parsec, 2.85E-12 point (typography point), 1.99E-16 rod (surveyors rod), 1.64E-16 rope, 5.41E-18 stadium (Roman stadium), 1.19E-15 vara (Mexican vara), 1.09E-15 yard.
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