Ratio of 1 to 1 (1:1)

Ratio of 1 to 1

A ratio of 1 to 1 can be written as 1 to 1, 1:1, or 1/1. Furthermore, 1 and 1 can be the quantity or measurement of anything, such as students, fruit, weights, heights, speed and so on.

A ratio of 1 to 1 simply means that for every 1 of something, there are 1 of something else, with a total of 2.

In the box below, you can enter a number in either box and we will calculate the other number to keep the ratio of 1 to 1. In other words, we will calculate the corresponding equivalent ratio of 1:1 for you.

To calculate the left side of the ratio, our calculator multiplies the right side by 1 and then divides the product by 1. To calculate the right side of the ratio, our calculator multiplies the left side by 1 and then divides the product by 1. Answers are rounded to two decimals if necessary.

Below is a list of equivalent ratios of 1:1 that we created using our 1:1 ratio calculator above.

1:1

2:2

3:3

4:4

5:5

6:6

7:7

8:8

9:9

10:10

11:11

12:12

We have also created a pie chart for you to put 1:1 ratio in perspective. To do so, we divided a pie into 2 pieces and then colored 1 pieces green and 1 pieces blue. The pie will look exactly the same using any equivalent ratio of 1:1.

1 to 1 pie ratio

The green part of the pie covers 50% and the blue part covers 50%. To calculate the percentages, we divided each side of the ratio by its total and then multiplied by 100, like this:

(1 / 2)×100 = 50
(1 / 2)×100 = 50

In fractional terms, 1/1 of the pie above is colored in green. This means that the ratio of 1 to 1 or 1:1 can also be expressed as a fraction, where the 1 to the left of the colon is the numerator and the 1 to the right of the colon is the denominator:

1:1 = 1/1

Ratio is often used when defining rectangles in width:height format. Width and height can be feet, inches, centimeters, or any other kind of length. With a ratio of 1 to 1, the width is 1 and the height is 1. Below is a picture of what a rectangle with a ratio of 1:1 looks like.

1 to 1 pie rectangle

Since the simplest form of the fraction 1/1 is 1/1, the simplest form of the ratio 1:1 is also 1:1.

Ratio Calculator
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Ratio of 1 to 2
Go to the next ratio on our list that we have detailed information about.