Average Calculator
Paste a list of numbers to get the mean, median, mode, range and standard deviation.
Runs in your browser — nothing is uploadedEnter values
Result
- Count
- 7
- Sum
- 109
- Median
- 15
- Mode
- 15
- Minimum
- 7
- Maximum
- 31
- Range
- 24
- Std. deviation (population)
- 7.442295
- Std. deviation (sample)
- 8.038597
How it's calculated
Mean = Sum ÷ Count
= 109 ÷ 7 = 15.571429
Median = middle value when sorted (average of the two middle values for an even count)
About Average Calculator
An average summarizes a list of numbers with one representative value. This calculator gives you the mean, median and mode together, plus the range and standard deviation, so you can understand both the typical value and how spread out the data is.
Paste numbers separated by commas, spaces or new lines — straight from a spreadsheet or document. Anything that is not a number is listed and ignored, so you can see exactly what was included.
When to use it
- Calculating average marks, test scores or grades.
- Analyzing prices, sales or survey results.
- Quick statistics for homework and research.
- Checking data copied from Excel or Google Sheets.
Tips for better results
- Use the median when a few very large or small values could distort the mean, such as salaries or house prices.
- A low standard deviation means the values are close together; a high one means they vary widely.
- Paste a whole column from a spreadsheet — line breaks are handled automatically.
How to use the Average Calculator
- Type or paste numbers separated by commas, spaces or new lines.
- Results update as you type.
- Anything that isn't a number is listed and ignored.
Frequently asked questions
What is the difference between mean and median?
The mean adds all values and divides by the count. The median is the middle value when sorted, so it isn't pulled by extreme values.
Population or sample standard deviation?
Use population when your list is the entire group, and sample (divides by n − 1) when it's a sample from a larger group.
What is the mode?
The mode is the value that appears most often. A list can have one mode, several modes, or none if every value appears once.
What does the range tell me?
The range is the difference between the highest and lowest value. It gives a quick idea of spread, but it is sensitive to a single extreme value.