The SI base unit for length is: meter (m)

1 ångstrom (Å)= 1.0e-10 m 1 foot (ft) = 0.3048 meter (m) 1 inch (in) = 0.0254 meter (m)
1 fathom = 6 foot (ft) 1 yard (yd) = 0.9144 meter (m) 1 mile nautical (nmi) = 1852 meter (m)