How to Convert 1mm to Inches
1 mm ÷ 25.4 = 0.0394 inches. To find the nearest 32nd, multiply by 32: 0.0394 × 32 = 1.26, which rounds to 1/32.
On a Tape Measure
Standard US tape measures show marks at every 1/16 inch. The nearest mark to 1mm is the 1/16″ mark. For rough layout work, use the 0/1″ mark.