1 yoctometre

To help compare different orders of magnitude this page lists lengths shorter than 10⁻²³ m (10 ym).

This series on orders of magnitude does not have a range of shorter distances
*1.6 × 10⁻³⁵ metres = the Planck length (lengths smaller than this do not make any physical sense, according to current theories of physics)
*1 ym = 1 yoctometre, the smallest named subdivision of the metre in the SI base unit of length.Distances longer than 10 ym

ee also

*Yoctometre
*Orders of magnitude (length)