fermi = 0.000000000000001 length
Try converting from "fermi" to barleycorn, chain (surveyors chain), earth to moon (mean distance earth to moon), ell, finger, foot, Greek fathom, Greek span, league, light yr (light year), m (meter), marathon, mil, mile, nautical league, parsec, rod (surveyors rod), sazhen (Russian sazhen), shaku (Japanese shaku), vara (Mexican vara), or any combination of units which equate to "length" and represent depth, fl head, height, length, wavelength, or width.
fermi = 1.41E-15 archin (Russian archin), 1.09E-17 city block (informal), 2.60E-24 earth to moon (mean distance earth to moon), 5.69E-12 en (typography en), 3.28E-17 engineers chain, 4.97E-18 furlong (surveyors furlong), 5.40E-16 Greek fathom, 9.84E-15 hand, 1.81E-15 Israeli cubit, 2.07E-19 league, 3.94E-11 mil, 6.21E-19 mile, 2.36E-13 pica (typography pica), 2.85E-12 point (typography point), 6.76E-19 Roman mile, 1.64E-16 rope, 4.37E-15 span (cloth span), 7.59E-20 spindle, 3.30E-14 sun (Japanese sun), 1.19E-15 vara (Mexican vara).
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