While 1 ryo of Nanryo Nishu Gin contained 21.6 monme (81g) of silver, the silver coins in currency (Gembun Chogin) did 27.6 monme (103.5g) when 1 ryo of these was considered as 60 monme (225g).
南鐐二朱銀一両の純銀量が21.6匁であるのに対し、通用銀（元文丁銀）は一両を60匁として、27.6匁の純銀量であった。