Halfway Between 12 and 678

When you ask "What number is halfway between 12 and 678?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=12 and Y=678.

Halfway Between Line

To find the number halfway between 12 and 678, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 12 and 678 into our formula, we get:

(12 + 678)/2 = 345

Thus, the number halfway between 12 and 678 is 345.

To check that our answer is correct, we subtract 12 from 345 and subtract 345 from 678 and compare the two numbers:

345 - 12 = 333
678 - 345 = 333

As you can see, the halfway number is 333 higher than 12 and 333 lower than 678. Therefore, our halfway between answer of 345 above is correct.

Halfway Between
Find halfway between two other numbers here!

Halfway Between 12 and 679
Here is our next Halfway Between calculation.