Online Average Calculator
Calculate the mean of a list of numbers, plus sum, count, median, range, largest, smallest, and geometric mean. Free and instant.
Average
| Sum | Largest | ||
|---|---|---|---|
| Count | Smallest | ||
| Median | Range | ||
| Geometric Mean |
What Is This Tool?
The Average Calculator finds the mean of a list of numbers and shows it as the sum divided by the count. Alongside the average it reports the sum, the count, the largest and smallest values, the median, the range, and the geometric mean. You enter your numbers separated by commas, and the full breakdown can be downloaded as a PDF. It is a quick way to summarize a small dataset without working through the statistics by hand.
How to Use This Tool?
- Type your numbers into the field, separated by commas.
- Click Calculate to see the average and the full breakdown.
- Review the sum, count, median, range, and other statistics.
- Click Download Result as PDF to save a copy.
Key Features
- Calculates the arithmetic mean and shows it as sum over count.
- Reports the sum, count, largest value, and smallest value.
- Finds the median and the range of the dataset.
- Also calculates the geometric mean.
- Download the full breakdown as a PDF.
Examples
- The list 10, 2, 38, 23, 38, 23, 21, 234 has a sum of 389 across 8 values, giving a mean of 48.625.
- For that same list the median is 23, the middle of the sorted values.
- The range is 232, the difference between the largest value 234 and the smallest value 2.
- Its geometric mean works out to about 22.87894539.
Common Use Cases
- Quickly averaging a set of numbers like scores or measurements.
- Summarizing a small dataset with several statistics at once.
- Checking homework or coursework in basic statistics.
- Finding the median and range of a list, not just the mean.
- Using the geometric mean for figures such as growth rates.
Tips & Best Practices
- Separate every value with a comma so each number is read correctly.
- Avoid a trailing comma, since an empty entry is counted as a zero.
- Decimal numbers are fine and can be entered directly.
- Double-check for typos, as a single non-number stops the calculation.
- Use positive numbers for a meaningful geometric mean.
Limitations
- The geometric mean can be invalid if the list contains negative numbers.
- An empty entry from a trailing or doubled comma is treated as a zero.
- Values must be separated by commas, not spaces or other characters.
- It reports a fixed set of statistics and does not include mode or standard deviation.
Frequently Asked Questions
- What is the difference between the mean and the median?
- The mean is the sum divided by the count, while the median is the middle value when the numbers are sorted.
- What is the geometric mean?
- It is the nth root of the product of all the numbers, often used for rates and ratios rather than simple averages.
- Can I enter decimals?
- Yes. You can include decimal numbers, and they are averaged along with whole numbers.
- Can I save my result?
- Yes. Click Download Result as PDF to save the average and the full breakdown as a file.
Key Terminology
- Arithmetic mean
- The sum of all values divided by how many values there are.
- Median
- The middle value of a sorted list, or the average of the two middle values.
- Range
- The difference between the largest and smallest values in the dataset.
- Geometric mean
- The nth root of the product of n values, useful for rates and ratios.
- Dataset
- The full list of numbers being summarized.