Mean Calculator

Calculate the arithmetic mean (average) of any dataset instantly.

The Mean Calculator helps you find the arithmetic mean (average) of any set of numbers. Simply enter your data and get instant results with step-by-step calculations.

Enter your numbers in the input field, separated by commas, spaces, or new lines
The mean is calculated automatically as you type
Click "Show Steps" to see the detailed calculation
View all related statistics in the Summary panel below

Instant arithmetic mean calculation
Step-by-step solution breakdown
Supports multiple input formats (comma, space, newline)
Adjustable decimal precision
Complete summary with all statistics (median, mode, std dev, and more)

What is the difference between mean and median?: The mean is the sum divided by count, while the median is the middle value when sorted. The median is less affected by outliers.
How many numbers do I need?: You need at least one number, but the mean is most useful with larger datasets.
Can I use decimal numbers?: Yes, the calculator supports both integers and decimal numbers.

Enter Data

Data Type

Decimals

Arithmetic Mean

x̄ = (Σxᵢ) / n

Median

Middle value of sorted data

Mode

Most frequent value(s)

Sample Standard Deviation

s = √[Σ(xᵢ - x̄)² / (n - 1)]

Sample Variance

s² = Σ(xᵢ - x̄)² / (n - 1)

Summary Statistics

Count -

Sum -

Min -

Max -

Range -

Mean -

Median -

Mode -

Std Dev (S) -

Std Dev (P) -

Variance (S) -

Variance (P) -

Q1 -

Q2 -

Q3 -

IQR -

Statistics Calculator

Comments 0