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Unit Converter

Conversion formula

The conversion factor from inches to centimeters is 2.54, which means that 1 inch is equal to 2.54 centimeters:

1 in = 2.54 cm

To convert 20 inches into centimeters we have to multiply 20 by the conversion factor in order to get the length amount from inches to centimeters. We can also form a simple proportion to calculate the result:

1 in → 2.54 cm

20 in → L(cm)

Solve the above proportion to obtain the length L in centimeters:

L(cm) = 20 in × 2.54 cm

L(cm) = 50.8 cm

The final result is:

20 in → 50.8 cm

We conclude that 20 inches is equivalent to 50.8 centimeters:

20 inches = 50.8 centimeters

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 centimeter is equal to 0.019685039370079 × 20 inches.

Another way is saying that 20 inches is equal to 1 ÷ 0.019685039370079 centimeters.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty inches is approximately fifty point eight centimeters:

20 in ≅ 50.8 cm

An alternative is also that one centimeter is approximately zero point zero two times twenty inches.

Conversion table

inches to centimeters chart

For quick reference purposes, below is the conversion table you can use to convert from inches to centimeters

inches (in) centimeters (cm)
21 inches 53.34 centimeters
22 inches 55.88 centimeters
23 inches 58.42 centimeters
24 inches 60.96 centimeters
25 inches 63.5 centimeters
26 inches 66.04 centimeters
27 inches 68.58 centimeters
28 inches 71.12 centimeters
29 inches 73.66 centimeters
30 inches 76.2 centimeters