Convert 1 1 per Millimeter to 1 per Inch

1 mm⁻¹ (1 per Millimeter) is equal to 25.400000000101603 in⁻¹ (1 per Inch). To convert from 1 per Millimeter to 1 per Inch, multiply by 25.4000000001016 or divide by 0.03937007874.

• 1 mm⁻¹ × 25.400000000102 = 25.400000000102 in⁻¹
• 1 mm⁻¹ ÷ 0.03937007874 = 25.400000000102 in⁻¹