# Thread: Metric Scale: convert from cm to m

1. ## Metric Scale: convert from cm to m

Hello there

I dont know how to use the 'metric scales' ruler.

I have to use the scale 1:50 for drafting and the numbers on the rules are in meters.

i've been given the measurements in cm. for example, my stairs raiser is 30 cm.

How do i use the scale ruler? I have to convert cm to m. Please help! I know that 1 m = 100 cm, but why does 30 cm look so small on the paper. it shouldnt be this small!

this is how my ruler looks like : http://www.artsupply.com/alvin/740PM.jpg

i found this image but i am not exactly sure what does it mean. http://www.design-skills.org/graphic...e/1m_scale.gif

Thank you

2. You are probably doing fine, as 30cms using a scale of 1:50 is actually very small.

Looking at the image you sent of the different scales, look at the 1:50 one. This small line represents 1meter, or 100cm. Since you're stair riser is 30cm, it is going to be approximately 1/3 the length of this short line. Is that approximately the length you are drafting?

I dont know how to use the 'metric scales' ruler.

I have to use the scale 1:50 for drafting and the numbers on the rules are in meters.

i've been given the measurements in cm. for example, my stairs raiser is 30 cm.

You are working with a 1:50 scale

1meter = 100cm
Using the scale

1 meter is REPRESENTED by 100/50 = 2cm
Divide this by 20
5cm is REPRESENTED by 1mm

You could use this on your scale ruler.

Every length you have to draw, divide it by 5 and the length of the line you have to draft is your answer times 1mm

30/5 = 6

You draft a line of 6mm

I hope this helps

,

,

,

,

,

,

,

,

,

,

# how to convert cm to m in 1:50scale

Click on a term to search for related topics.