# How do you convert 1.70mm to cm?

I just started to learn about conversion of units

i have the scale but i'm still REALLY confused..

if someone can do it in step by step with some explanation, it would be truly appreciated, thanks

### 4 Answers

- 7 years agoBest Answer
1 cm = 10 mm

10 mm = 1 cm

Therefore,

1.7 mm = .17 cm

The Metric system is easy because everything is based on values of ten. That means that you just need to move the decimal place forward or backwards based on how high/low your prefix is.

milli- to centi-? Move it one place to the left. Centi- to deci-? Again, move it one place to the left. Deci- to the regular unit? Once more, move the decimal to the left. And so on and so forth.

The opposite holds true for larger-to-smaller conversions. Deci- to centi-? Move the decimal one place to the right.

Hope I helped! :3

- 7 years ago
There are 10 mm in one cm so 1.70mm would be 0.17 cm you just add another 0 to the left most digit