# How to Read a Ruler: 10 Steps (with Pictures)

## Steps

### Method 1 of 2: American Rulers

#### Step 1. Take an American ruler

It must have a total of 12 inches marked. Between each of the inch marks, there should be 15 smaller marks.

#### Step 2. Learn the "1/16 of an inch" marks

This means that there are 16 of these marks between each inch mark and 192 of them on the entire ruler.

#### Step 3. Learn the "1/8 of an inch" marks

In total there are 96 of them across the entire ruler.

#### Step 4. Learn the "1/4 of an inch" marks

In total, there are 48 of them across the entire ruler.

#### Step 5. Learn the "1/2 inch" marks

In total there are 24 of them across the entire ruler.

#### Step 6. Learn the "inch" marks

A ruler is made of 12 of these marks. These are numbered.

### Method 2 of 2: Metric Ruler

#### Step 1. Take a measuring ruler

There must be a foot in it. Between each centimeter mark, there should be 10 smaller marks.

#### Step 2. Learn the "1/10th of a centimeter" marks, or the "millimeter" marks

That means there are 300 of these marks on the entire ruler.