Half of 2 9/16 inches is 1 9/32 inches (1.28125″, 32.54 mm).
How to Calculate It
Convert 2 9/16 to an improper fraction, divide by 2, then simplify. 2 9/16 = 41/16, divided by 2 = 41/32, simplified to 1 9/32.
On the Tape Measure
The mark at 1 9/32 inches (1.28125″) is a 1/32-inch mark found on many professional tapes. If your tape does not show 32nds, use the decimal 1.28125 with a digital caliper.
To find half of any tape measure measurement, enter it in TapeMath and tap the Half It button. The result appears instantly on the visual tape.