1/8 as a Percent

How to convert 1/8 to a percent

1. Divide the top number by the bottom number: 1 ÷ 8 = 0.125.
2. Multiply by 100: 0.125 × 100 = 12.5%.

Where you will see 1/8

One slice of a pizza cut into eight pieces is 1/8, or 12.5% of the pie.

In music, an eighth note lasts 1/8 of a whole note. In cooking, 1/8 teaspoon is the smallest spoon in most sets, and in US stocks prices were once quoted in eighths of a dollar, 12.5 cents each.

How 1/8 compares with nearby fractions

1/8 (12.5%) is a little less than 1/6 (16.67%). This is handy for estimating: if you remember the nearby benchmark, you can check that your answer is in the right range before you rely on it.

Check it in reverse

To go from the percent back to the fraction, write 12.5% over 100 and simplify. 12.5% = 12.5/100, which reduces back to 1/8.

1/8 of common amounts

Knowing that 1/8 is 12.5% lets you take that share of any number:

• 1/8 of 20 = 2.5
• 1/8 of 50 = 6.25
• 1/8 of 80 = 10
• 1/8 of 200 = 25

All the 8ths as percents

Other fractions as percents

• 6/7
• 1/6
• 4/5
• 3/5
• 3/2
• 5/8
• 5/4
• 5 1/5
• 2/5
• 1/5
• 1/3
• 4 3/4
• 4 1/4
• 3/8
• 1/4
• 5/7