科塔计算器（英语：Curta Calculator）是欧洲小国列支敦士登的Contina公司所发明的一款手摇式计算器，可以计算11位数字，是流行于二十世纪五六十年代的计算工具，在二十世纪七十年代被袖珍电子计算器所取代。

The Curta is a small mechanical calculator developed by Curt Herzstark. The Curta's design is a descendant of Gottfried Leibniz's Stepped Reckoner and Charles Thomas' Arithmometer, accumulating values on cogs, which are added or complemented by a stepped drum mechanism. It has an extremely compact design: a small cylinder that fits in the palm of the hand.