Average Calculator Formula

Understand the math behind the average calculator. Each variable explained with a worked example.

Use the Average Calculator

Formulas Used

Average

average = (a + b + c + d + e) / 5

Sum

sum = a + b + c + d + e

Count

count = 5

Variables

VariableDescriptionDefault
aValue 185
bValue 290
cValue 378
dValue 492
eValue 588

How It Works

How to Calculate an Average

Formula

Average = Sum of Values / Number of Values

Also called the arithmetic mean. Add up all the numbers and divide by how many numbers there are.

Worked Example

Find the average of 85, 90, 78, 92, and 88.

a = 85b = 90c = 78d = 92e = 88
  1. 01Sum = 85 + 90 + 78 + 92 + 88 = 433
  2. 02Count = 5
  3. 03Average = 433 / 5 = 86.6

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