What is 2.290 inches on a tape measure?

Answer 1

You will not be able to measure to that accuracy using a tape measure. You should have marks at tenths of an inch and so you will get 2.3 inches on the tape measure.

If you have a tape measure that has divisions to 1/32 of an inch then 2 and 10/32 is the nearest.

Answer 2

Approximately two and two thirds.

Any more detail in the answer would require information as to whether it is millimetres, or inches or whatever.

Answer 3

2.6 inches, strangely enough!