How much is threescore cubits in inches?

A score is the same as 20, so threescore is 20x3=60

A cubit is an ancient form of measurement of length based of the length of the forearm. This, of course, means that the actual length of a cubit depends on average lengths. which is about 18-22 in. long.

Thus, threescore cubits equals anywhere from 1080-1320 In.