蘇州碼是中國民間常用的記數方式，研讀史料原件時（如：土地契書、帳冊等等），內文中若提到土地、銀兩／元、重量、長度，其計數方式經常使用蘇州碼。此工具可將蘇州碼轉換為阿拉伯數字，並幫助使用者解讀與蘇州碼一同出現的數值。例如：當契書中出現「〣〦〦〡〨〨十石」，可被解讀為「三十六石 六斗 一升 八合 八勺」，或簡化為「36.6188石」表示。

Suzhou code is common counting method in China. When studying original historical data (such as land leases, account books, and etc.), the units for land, silver/yuan, weight, and length are usually described with Suzhou numerals. This tool can convert Suzhou code into the common numerals and convert the measurement that accompanied with the Suzhou code. For example, when the code “〣〦〦〡〨〨 ten dans” appeared in a contract, it will be interpreted as “36 dans, 6 dou, 1 sheng, 8 he, and 8 shao”, or simply “36.6188 dans”.