HomeCM to Inches1 cm to inches
Length Conversion

How many inches is 1 centimeters?

0.39
inches (in)
Centimeters
1 cm
Inches (exact)
0.3937 in
Feet + Inches
0 ft 0.39 in
Millimeters
10 mm
Meters
0.01 m
Feet (decimal)
0.0328 ft

1 cm to inches — full breakdown

1 centimeters = 0.3937 inches (exact). Rounded: 0.39 in. In feet and inches: 0 ft 0.39 in. In millimeters: 10 mm. In meters: 0.01 m.

Smaller than a pen cap. Millimeter precision matters for jewellery, electronics, and medical measurements.

1 cm = 0.39 inches. Useful for screen sizes (monitors measured diagonally in inches), photo print sizes, and product dimensions on US retailers. A standard A4 sheet is 29.7 × 21 cm (11.69 × 8.27 in).

Complete breakdown: 0.39 inches · 0 ft 0.39 in · 10 mm · 0.01 m. The inch is defined as exactly 2.54 cm since the 1959 International Yard and Pound Agreement.

Exact formula: inches = cm ÷ 2.54. Quick estimate: divide by 2.5 → 0.4 in (about 1.6% over the exact 0.39 in). To convert back: multiply inches × 2.54.

Frequently Asked Questions

How many inches is 1 cm?

1 cm = 0.39 inches (exact: 0.3937 in). Divide by 2.54.

How do I convert 1 cm to inches?

Divide by 2.54: 1 ÷ 2.54 = 0.39 in. Quick estimate: divide by 2.5 → 0.4 in.

What is 1 cm in feet and inches?

1 cm = 0 feet 0.39 inches (0’0.39”). In decimal feet: 0.0328 ft.

What is 1 cm in millimeters?

1 cm = 10 mm (1 cm = 10 mm). Also: 0.01 m and 1.0E-5 km.

Live Converter

Formula: in = cm ÷ 2.54  |  cm = in × 2.54