fermi = 0.000000000000001 length
Try converting from "fermi" to actus (Roman actus), agate (typography agate), archin (Russian archin), bolt (of cloth), digitus (Roman digitus), earth to moon (mean distance earth to moon), ell, en (typography en), engineers chain, foot, hand, line, link (surveyors link), micron, nautical mile, palm, Roman foot, rope, span (cloth span), survey foot, 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), 1.71E-17 arpentlin, 6.68E-27 astronomical unit, 5.47E-16 fathom, 1.09E-17 football field, 4.97E-18 furlong (surveyors furlong), 2.16E-15 Greek cubit, 2.07E-19 league, 1.55E-18 li (Chinese li), 1.06E-31 light yr (light year), 2.37E-20 marathon, 1.78E-19 parasang, 3.24E-32 parsec, 2.55E-19 ri (Japanese ri), 3.38E-15 Roman foot, 6.76E-19 Roman mile, 1.64E-16 rope, 7.59E-20 spindle, 5.41E-18 stadium (Roman stadium), 3.30E-14 sun (Japanese sun).
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