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Inches to Centimeters

Convert inches (in) to centimeters (cm) — instant and accurate

1 in = 2.54 cm  ·  To convert inches to centimeters, multiply by 2.54.

2.54 cm

Inches to Centimeters Conversion Table

InchesCentimeters
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
15 in38.1 cm
20 in50.8 cm
25 in63.5 cm
30 in76.2 cm
40 in101.6 cm
50 in127 cm
75 in190.5 cm
100 in254 cm
250 in635 cm
500 in1270 cm
1000 in2540 cm

Formula

centimeters = inches × 2.54
inches = centimeters × 0.39370079
Example: 5 in × 2.54 = 12.7 cm

About the Inches-to-Centimeters Conversion

Converting inches to centimeters is needed when ordering goods internationally, interpreting US product specifications in a metric context, or working with sewing patterns and woodworking plans across measurement systems. The conversion is exact: every inch is precisely 2.54 centimetres.

Real-World Examples

  • 12 in (one foot exactly) = 30.48 cm
  • 72 in (6-foot person's height in inches) = 182.88 cm
  • 15.6 in (laptop screen diagonal) = 39.624 cm
  • 1 in (one inch) = 2.54 cm

Centimeters to Inches (Reverse)

CentimetersInches
1 cm0.393701 in
2 cm0.787402 in
3 cm1.1811 in
4 cm1.5748 in
5 cm1.9685 in
6 cm2.3622 in
7 cm2.75591 in
8 cm3.14961 in
9 cm3.54331 in
10 cm3.93701 in
15 cm5.90551 in
20 cm7.87402 in
25 cm9.84252 in
30 cm11.811 in
40 cm15.748 in
50 cm19.685 in
75 cm29.5276 in
100 cm39.3701 in
250 cm98.4252 in
500 cm196.85 in
1000 cm393.701 in

Frequently Asked Questions

How many centimeters are in a inch?

1 inch equals 2.54 centimeters.

How do I convert inches to centimeters?

Multiply the value in inches by 2.54 to get centimeters. For example, 5 in × 2.54 = 12.7 cm.

How do I convert centimeters back to inches?

Multiply the value in centimeters by 0.39370079 to get inches. Equivalently, divide by 2.54.

How many inches are in a centimeter?

1 centimeter equals 0.39370079 inches.

How many centimeters is 12 in?

12 in (one foot) equals 30.48 cm.

Is the inches-to-centimeters conversion exact?

Yes. 1 in = 2.54 cm is an exact value defined by international agreement.

About Inches and Centimeters

The inch (symbol in) is an imperial and US customary unit defined as exactly 25.4 millimetres since the 1959 international agreement.

The centimetre (symbol cm) equals one hundredth of a metre and is widely used for everyday measurements throughout most of the world.

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