MM to Inches Converter

Divide mm by 25.4. 1 mm = 0.03937 inches. 10 mm = 0.394 inches. 25.4 mm = 1 inch exactly. The converter provides results in decimal inches and fractional inches (e.g., 12.7 mm = 1/2 inch).

3 mm ≈ 1/8". 6 mm ≈ 1/4". 8 mm ≈ 5/16". 10 mm ≈ 3/8". 12 mm ≈ 1/2". 19 mm ≈ 3/4". 25 mm ≈ 1". These approximations help when matching metric and imperial fasteners.

Phone screens: 6.1" = 155 mm diagonal. Monitor bezels: 5 mm = 0.2". Pixel pitch: 0.27 mm = 0.0106". The converter helps compare device specifications listed in different unit systems.

3 mm = 0.118 inches ≈ 1/8". Common jewelry sizes: 1 mm = 0.039", 2 mm = 0.079", 4 mm = 0.157", 5 mm = 0.197", 6 mm = 0.236". Ring band widths and gemstone sizes are often listed in mm.

1 inch = 25.4 mm. Each 1/16" mark = 1.5875 mm. Each 1/8" mark = 3.175 mm. Each 1/4" mark = 6.35 mm. Metric rulers show mm as the smallest division. The converter bridges both measurement systems precisely.