Average and Median Calculator
Find mean, median, min, max, sum, and range from any list of numbers.
Type or paste a list of numbers separated by commas or spaces. Get the full statistical summary in one tap.
Mean vs median (the most important thing to know)
The mean is what most people call "average." Add up all the values and divide by how many you have. The median is the middle value when the numbers are sorted (or the average of the two middle values if there's an even count).
Mean and median can be very different when your data has outliers. Five test scores: 70, 75, 80, 85, 90. Mean and median are both 80. But add one outlier (a perfect 100 and a zero): 0, 70, 75, 80, 85, 90, 100. Mean is 71.4, but median is still 80. The mean dropped because the zero pulled it down. For test scores or income, the median often tells a more useful story than the mean.
When to use which
- Mean: when all values matter equally (test grades, lab measurements)
- Median: when outliers would distort the picture (income, home prices, response times)
- Both: when comparing the two tells you whether outliers are present
This calculator handles
Any list of numbers separated by spaces or commas. It returns mean, median, min, max, sum, count, and range (max minus min). Useful for quick statistics on grades, measurements, sales numbers, or any small dataset.