100 cm = 1 metre just so you know. If one centimeter equals 10 millimetres. 100 centimeters = 1 meter so basically you multiply 10 mm by witch equals 1000 so I believe there's 1000 milimeters in one meter I'm not sure I'm really bad at math but that's what I think

The suffix 'centi-' means hundred. That is why 100 cents are equal to one US dollar. Similarly, one meter is equal to a hundred centimeters and one centimeter can be said to be equal to one hundredth of a meter. Now suppose, your height is 175 cm but you want to know it in meters (possibly for a BMI calculation or a form that asks for your height in meters). So, to convert it into meters, you would simply divide this value by 100: 175/100 = 1.75 m

Similarly, to convert meters into cm, we just multiply the given value by hundred. Suppose, your friend's height is 1.70 meters. So, in cm his height would be 170cm: 1.79 x 100 = 179cm

It is actually quite easy to convert between the two and I am sure you would have no trouble doing so at all! Have a good day!