Inches to Centimeters

Type a value in in and get cm instantly: 1 in = 2.54 cm

Centimeters (cm) 2.54

1 in = 2.54 cm

⇄ Centimeter → Inch
cm = in × 2.54Formula
in = cm × 0.393701Reverse formula
1 in = 2.54 cmFactor

The conversion between inches (in) and centimeters (cm) is fixed: 1 in = 2.54 cm and 1 cm = 0.3937 in. To convert in to cm, multiply by 2.54; to go the other way, multiply by 0.3937 (or divide by 2.54). For example, 10 in = 25.4 cm and 24 in = 60.96 cm.

Enter any value in the converter above; the result updates as you type. You will also find a ready-made table for common values, the formula, and a link to the reverse conversion (centimeters to inches).

Since 1959 the inch has been defined internationally as exactly 2.54 cm, so cm to inches uses 1/2.54 ≈ 0.3937. Screen sizes (a 15.6-inch laptop, a 55-inch TV) refer to the diagonal.

Quick answers

1 in = 2.54 cm 5 in = 12.7 cm 8 in = 20.32 cm 12 in = 30.48 cm 24 in = 60.96 cm 40 in = 101.6 cm 55 in = 139.7 cm 100 in = 254 cm

Inches to Centimeters conversion table

Inches (in)Centimeters (cm)
1 in2.54 cm
2 in5.08 cm
3 in7.62 cm
4 in10.16 cm
5 in12.7 cm
6 in15.24 cm
7 in17.78 cm
8 in20.32 cm
9 in22.86 cm
10 in25.4 cm
11 in27.94 cm
12 in30.48 cm
15 in38.1 cm
18 in45.72 cm
20 in50.8 cm
24 in60.96 cm
27 in68.58 cm
32 in81.28 cm
36 in91.44 cm
40 in101.6 cm
48 in121.92 cm
50 in127 cm
55 in139.7 cm
60 in152.4 cm
65 in165.1 cm
72 in182.88 cm
100 in254 cm

Centimeters to Inches quick table

Centimeters (cm)Inches (in)
1 cm0.3937 in
4 cm1.5748 in
8 cm3.1496 in
12 cm4.7244 in
20 cm7.874 in
40 cm15.748 in
60 cm23.622 in
90 cm35.433 in
160 cm62.992 in
200 cm78.74 in
Go to the centimeters to inches converter →

Frequently Asked Questions

How many centimeters are in 1 Inch?

1 in = 2.54 cm. Multiply a value in in by 2.54 to get cm.

How do I convert centimeters to inches?

Multiply the value in cm by 0.3937, or divide it by 2.54. For example, 25.4 cm ≈ 10 in.

What is 24 in in cm?

24 in = 60.96 cm.

Is the factor 2.54 exact?

Both units have exact international definitions, so the factor is fixed; only the displayed value is rounded.

Open the unit converter 13 categories, both directions; Inch ↔ Centimeter preselected

More length conversions

All unit conversion tables →