Since the Meiji period, the New Currency Act became effective and 1 ryo was determined as equivalent to 1 yen (the value of contained amount of gold and silver of nibukin and purity of gold of 1 yen coin were almost equivalent).
なお、明治以降新貨条例が施行され、1両は1円(通貨)と等価とされ、（二分金の金銀含有量の実質価値と日本の金貨一円金貨の純金含有量の価値がほぼ等しかった。