Fermi is length unit, symbol: [fm]. Definition of 1 fermi ≡ 1×10−15 m. . Compared to metre, fermi is smaller unit.
• 1 [fm] = (exactly) `1*10^-15` [m]
• 1 [m] = (exactly) `1/(1*10^-15)` [fm] = 1.0 × 10+15 [fm]
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Multiply convert of fermi to common length units:
[fm]Length units sort by name in ABC order
Lide, D. (Ed.). (1990). Handbook of Chemistry and Physics (71st ed). Boca Raton, FL: CRC Press. Section 1.