Halfway Between 4 and 20

When you ask "What number is halfway between 4 and 20?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=4 and Y=20.

Halfway Between Line

To find the number halfway between 4 and 20, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 4 and 20 into our formula, we get:

(4 + 20)/2 = 12

Thus, the number halfway between 4 and 20 is 12.

To check that our answer is correct, we subtract 4 from 12 and subtract 12 from 20 and compare the two numbers:

12 - 4 = 8
20 - 12 = 8

As you can see, the halfway number is 8 higher than 4 and 8 lower than 20. Therefore, our halfway between answer of 12 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 4 and 21
Here is our next Halfway Between calculation.