



 
Amanda, we have two responses for you: Dear Amanda, Gabriel
Hi Amanda. Metric measurements use the International System of Units (SI) prefixes. That means that mm means millimeter and cm means centimeter. With SI, "milli" always means "onethousandths" and "centi" always means "onehundredths". There is a larger table in this earlier web page of ours. So to convert from mm into cm, you have to ask "how do I go from thousandths to hundredths?" You divide by ten. So 83 mm is 8.3 cm. Stephen La Rocque. >
 


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