Average Calculator
Calculate mean (average), median, mode, range, sum and count for any set of numbers. Supports comma or newline-separated values.
About the Average Calculator
The average, or arithmetic mean, is the sum of a set of numbers divided by how many there are. The average of 4, 8 and 12 is 24 divided by 3, which is 8. It is the most common way to summarise a set of values such as test scores, prices or measurements.
The mean can be misleading when a few values are very large or small. If four people earn 30,000 and one earns 500,000, the mean is 124,000, which describes nobody. In such cases the median, the middle value when sorted, is a better summary. The mode is the most frequent value and is useful for categories such as shoe sizes.
Use the calculator to find the mean, median, mode and range of a list in one go.
For the scores 70, 75, 80, 85 and 100, the sum is 410 and the mean is 82. The median is 80 and the range is 30.
Tips for best results
- For a weighted average, multiply each value by its weight, add the results and divide by the total weight.
How to use the Average Calculator
Why use Toolseza for Average Calculator?
Use this tool as often as you need with no paywalls, premium tiers, or hidden daily calculation quotas.
All calculations and file manipulations run inside your web browser. Your inputs are never sent to a cloud server.
Results update in real-time as you type or adjust settings, with instant one-click copy and export capabilities.
Works natively on smartphones, tablets, laptops, and desktop computers with zero installation or account creation.
Editorial Standards & Verification: All formulas, algorithms, and conversion factors implemented on Toolseza adhere to openly documented international standards (ISO, NIST, BIPM, W3C). Results are verified against benchmark reference datasets before publication.
Frequently Asked Questions
Is Average Calculator free to use?
Yes — Average Calculator is completely free, unlimited, and requires no sign-up.
Can I calculate the average of a large set of numbers?
Yes — paste or type as many numbers as you like, separated by commas or new lines. There is no hard limit.
Are the calculations accurate?
Yes — it uses the standard, widely accepted formula, so results are accurate and reliable.
Does it work on mobile and tablet?
Yes — Average Calculator works on any modern browser, including mobile and tablet, no app required.