Average Calculator
Mean, median and mode.
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About Average Calculator
The Average Calculator takes any list of numbers separated by commas, spaces, or new lines and instantly returns the mean along with a full set of statistics: count, sum, median, mode, minimum, maximum, range, and population standard deviation. Non-numeric tokens are ignored automatically, so pasting messy data still works.
It is completely free with no sign-up, and it runs entirely in your browser. Your numbers are never uploaded to a server, so calculations are private and available instantly as you type.
Frequently asked questions
- Is the Average Calculator free to use?
- Yes, it is completely free with no account, sign-up, or usage limits. Enter as many numbers as you like, as often as you like.
- Are my numbers uploaded or stored anywhere?
- No. All calculations happen locally in your browser using JavaScript. Nothing you type is sent to a server, saved, or shared, so your data stays private.
- How do I separate the numbers I enter?
- You can separate values with commas, spaces, new lines, or any mix of those. For example, '12, 7, 22' and '12 7 22' on separate lines both work the same way.
- What statistics does it calculate?
- It shows the count, sum, mean (average), median, mode, minimum, maximum, range, and the population standard deviation for your set of numbers.
- How is the average (mean) calculated?
- The mean is the sum of all your numbers divided by how many numbers there are. The median is the middle value when sorted, and the mode is the most frequently occurring value.
- What happens if I include text or invalid values?
- Any token that is not a valid number is automatically ignored, and the tool tells you how many were skipped. Empty input simply shows no results instead of an error.
- Is the standard deviation population or sample?
- This tool reports the population standard deviation, which divides by the total count of values rather than count minus one used for a sample.