Tikvah
Editors’ Pick

July 30, 2025

How Long Is a Cubit?

Archaeology may have the answer.

While Americans measure things in feet and inches, and Europeans in meters and centimeters, the Torah and Talmud use cubits and handsbreadths, and these measurements are essential for a variety of halakhic purposes. In modern times, rabbinic scholars have tried to translate these units into standard Western ones. Estimates for a cubit, for instance, usually range between 18 and 24 inches. Yair Hoffman argues that recent archaeological discoveries support the opinion of the American authority Rabbi Moses Feinstein, who ruled that a cubit (amah) is 21 inches and a handsbreadth (tefah) 3.54 inches:

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