
A ratio of 18 to 36 can be written as 18 to 36, 18:36, or 18/36. Furthermore, 18 and 36 can be the quantity or measurement of anything, such as students, fruit, weights, heights, speed and so on.
A ratio of 18 to 36 simply means that for every 18 of something, there are 36 of something else, with a total of 54.
In the box below, you can enter a number in either box and we will calculate the other number to keep the ratio of 18 to 36. In other words, we will calculate the corresponding equivalent ratio of 18:36 for you.
To calculate the left side of the ratio, our calculator multiplies the right side by 18 and then divides the product by 36. To calculate the right side of the ratio, our calculator multiplies the left side by 36 and then divides the product by 18. Answers are rounded to two decimals if necessary.
Below is a list of equivalent ratios of 18:36 that we created using our 18:36 ratio calculator above.
1:2
2:4
3:6
4:8
5:10
6:12
7:14
8:16
9:18
10:20
11:22
12:24
We have also created a pie chart for you to put 18:36 ratio in perspective. To do so, we divided a pie into 54 pieces and then colored 18 pieces green and 36 pieces blue. The pie will look exactly the same using any equivalent ratio of 18:36.

The green part of the pie covers 33.33% and the blue part covers 66.67%. To calculate the percentages, we divided each side of the ratio by its total and then multiplied by 100, like this:
(18 / 54)×100 ≈ 33.33
(36 / 54)×100 ≈ 66.67
In fractional terms, 18/36 of the pie above is colored in green. This means that the ratio of 18 to 36 or 18:36 can also be expressed as a fraction, where the 18 to the left of the colon is the numerator and the 36 to the right of the colon is the denominator:
18:36 = 18/36
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 18 to 36, the width is 18 and the height is 36. Below is a picture of what a rectangle with a ratio of 18:36 looks like.

Since the simplest form of the fraction 18/36 is 1/2, the simplest form of the ratio 18:36 is also 1:2.
Ratio Calculator
Need information about another ratio? Here you can submit another ratio for us to explain.
Ratio of 18 to 37
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