What is the difference between mean, median, and mode?

Mean is the arithmetic average (sum ÷ count). Median is the middle value when sorted. Mode is the most frequently occurring value. For symmetric distributions they are equal; for skewed data they differ.

What is standard deviation?

Standard deviation (σ) measures how spread out numbers are from the mean. A low σ means values are clustered close to the mean; a high σ means they are spread widely.

What is geometric mean used for?

Geometric mean is used for growth rates, investment returns, and ratios. It is only valid for positive numbers and less affected by extreme values than arithmetic mean.

Quartiles divide sorted data into four equal parts. Q1 = 25th percentile, Q2 = median (50th), Q3 = 75th percentile. IQR = Q3 − Q1 and measures the spread of the middle 50% of data.

Can I enter decimal numbers?

Yes. Enter numbers like 1.5, 3.14, 0.001 — they are all supported. Non-numeric values are automatically skipped with a warning.

Average Calculator

Calculate mean, median, mode, standard deviation and more from a list of numbers.

Enter Numbers

7 numbers

Average (Mean)

28.5714

Median

Sum

200

Count

Central Tendency

Arithmetic Mean

28.5714

Geometric Mean

25.5971

Harmonic Mean

22.4599

Mode

20, 30

Spread & Distribution

Minimum

Maximum

Range (Max − Min)

Std Deviation (σ)

12.454

Variance (σ²)

155.102

Quartiles

Q1 (25th Pct)

Q2 / Median (50th)

Q3 (75th Pct)

IQR (Q3 − Q1)

Distribution

0.0%

25.0%

50.0%

75.0%

100.0%

Min: 10Mean: 28.57Max: 50

How to Use Average Calculator

1
Type or paste your numbers into the input box.
2
Separate values with commas, spaces, semicolons, or new lines.
3
All statistics update instantly as you type.
4
Click the copy icon next to any result to copy it.
5
Use the distribution bar to visually compare values.

About Average Calculator

A full-featured statistics calculator that goes far beyond just finding the average. Enter any list of numbers — separated by commas, spaces, or new lines — and instantly get:

**Central Tendency**: Arithmetic mean, geometric mean, harmonic mean, and mode. **Spread**: Minimum, maximum, range, variance, and standard deviation (σ). **Quartiles**: Q1 (25th percentile), Q2 (median), Q3 (75th percentile), and IQR. **Distribution bar**: Visual bar chart showing relative distribution of each value.

All results update in real-time as you type. Each value has a copy button for easy use. Works with integers, decimals, and large datasets.