Mean Calculator Formula

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

Use the Mean Calculator

Formulas Used

Arithmetic Mean

mean_result = total / 5

Sum of Values

sum_total = total

Variables

VariableDescriptionDefault
val1Value 110
val2Value 220
val3Value 330
val4Value 440
val5Value 550
totalDerived value= val1 + val2 + val3 + val4 + val5calculated

How It Works

How to Compute the Arithmetic Mean

Formula

Mean = (Sum of all values) / (Number of values)

The arithmetic mean represents the central tendency of a dataset by distributing the total evenly across all observations. It is sensitive to extreme values, so outliers can shift the mean significantly.

Worked Example

Find the mean of 10, 20, 30, 40, and 50.

val1 = 10val2 = 20val3 = 30val4 = 40val5 = 50
  1. 01Sum all values: 10 + 20 + 30 + 40 + 50 = 150
  2. 02Count the values: 5
  3. 03Mean = 150 / 5 = 30

Ready to run the numbers?

Open Mean Calculator