Inches to CM Converter
Convert inches to centimeters
Frequently Asked Questions
How do I convert inches to centimeters?
Multiply inches by 2.54. 1 inch = 2.54 cm exactly. 12 inches = 30.48 cm. The converter handles fractional inches (3½" = 8.89 cm) and shows results in both cm and mm.
What are common inch to cm conversions?
1" = 2.54 cm. 3" = 7.62 cm. 6" = 15.24 cm. 12" = 30.48 cm. 24" = 60.96 cm. 36" = 91.44 cm. 48" = 121.92 cm. These cover most everyday measurement needs.
How do I convert TV screen sizes to cm?
Multiply the diagonal inches by 2.54. A 55" TV = 139.7 cm diagonal. A 65" TV = 165.1 cm. Screen dimensions depend on aspect ratio — the converter calculates width and height from diagonal and ratio.
How do I convert fractional inches to cm?
Convert the fraction to decimal first: 3/8" = 0.375", then multiply by 2.54 = 0.9525 cm. Common fractions: 1/4" = 0.635 cm, 1/2" = 1.27 cm, 3/4" = 1.905 cm. The converter accepts fraction input directly.
What is the difference between inches and centimeters for paper sizes?
US Letter: 8.5" × 11" = 21.59 × 27.94 cm. A4: 21.0 × 29.7 cm = 8.27" × 11.69". A4 is slightly narrower and taller than Letter. The converter helps compare international paper formats.