There are 2.54 centimetres to an inch (to two decimal places), so all you need to do is multiply up accoringly.

If you wnat a more accurate answer, i.e. one that is more than two decimal places, or you can't remember the conversion rate or simply can't be bothered to use the conversion rate, then I wuld suggest you use an imperial/metric conversion website. There are loads of these sites and all of them are free to use and don't require you to sign up.

the conversion websitees are very easy to use and all you do is select the measurement you have, i.e. in your case inches, and then select the measurement you want, i.e. in your case centimetres. You then enter the number of units you have, i.e. inches, press "convert" and you will get the number of units you want.

You can convert an inch into a centimeter simply by multiplying it by 2.54 cm. We are multiplying it because inch is bigger than centimeter and obviously centimeter number(Like 80 centimeter) is greater than inch number(20 inch). Here, 20<80. It means, we should produce the more amount to get centimeter value of given inch value.

I hope my answer helps you.

One easy way to find a conversion of inches to centimeters without doing the math is to use google! Just go to google.com and enter what you wish to convert. For example, if you wanted to convert 15 inches to centimeters, you would enter "convert 15 inches to centimeters" and the google calculater would give you the answer: 15 inches = 38.1 centimeters.

...You can convert inches to centimeters by multiplying the number of inches by 2.54, because each inch

equals 2.54 centimeters.

For example, 4 inches equals 4 x 2.54 = 10.16 centimeters

You convert centimetres to inches by multiplying by 2.54

so 2 inches = 2 x 2.54 = 5.08 inches

This is a good online converter http://www.theonlineconverter.co.uk

Multiply by 2.54. For example, to convert 10 inches to centimeters, multiply 10 by 2.54.

10 inches = 10 x 2.54 = 25.4 centimeters.