Paste or type a list of numbers and the Average Calculator gives you the mean, median, mode, range, sum, count, minimum and maximum in one step. You can separate the numbers with commas, spaces, semicolons or new lines, so a column copied from Excel or Google Sheets works directly. Students use it for marks, teachers for class results, shop owners for daily sales and analysts for quick checks on a dataset.
How to use the average calculator
- Type or paste your numbers into the box, for example
82, 90, 76, 88, 95. - Decimals and negative numbers are fine.
- Press Calculate. Any text that is not a number is ignored.
Mean (arithmetic average)
Marks 82, 90, 76, 88, 95 → sum 431 ÷ 5 = 86.2.
The mean uses every value, which makes it sensitive to outliers. If four friends earn ₹40,000 a month and a fifth earns ₹5,00,000, the mean income is ₹1,32,000, which describes nobody in the group.
Median (middle value)
Sort the numbers and take the middle one. With an even count, average the two middle values.
- 76, 82, 88, 90, 95 → median 88
- 3, 7, 9, 12, 15, 20 → median (9 + 12) ÷ 2 = 10.5
The median ignores extreme values, so it is the better measure for skewed data such as incomes, house prices and delivery times. In the income example above, the median is ₹40,000.
Mode (most frequent value)
The value that appears most often. A list can have one mode, several (multimodal), or none if every value appears once. Shoe sizes 7, 8, 8, 9, 8, 10, 7 have a mode of 8, which is the size a shop should stock most of.
Range, minimum and maximum
The range shows how spread out the data is. Two classes can both average 70%, but a range of 45–95 tells a very different story from 65–78.
Which average should you use?
| Situation | Best measure | Why |
|---|---|---|
| Exam marks, temperatures, heights | Mean | Data roughly symmetric, every value matters |
| Salaries, property prices, wait times | Median | A few extreme values would distort the mean |
| Most popular size, colour or product | Mode | Shows the most common choice, and works for categories too |
| Consistency of results | Range (or standard deviation) | Shows the spread, not the centre |
Weighted average
When the items carry different importance, a plain mean is wrong. Each value must be multiplied by its weight:
Internal assessment 80% (weight 30) and final exam 70% (weight 70): (80 × 30 + 70 × 70) ÷ 100 = 73%, not the simple average of 75%. Use the Grade Calculator for weighted grades, or the CGPA Calculator for credit-weighted grade points.
Average of percentages: a common trap
You cannot average percentages that have different bases. If you scored 45/50 (90%) in one test and 60/100 (60%) in another, your overall score is 105/150 = 70%, not (90 + 60) ÷ 2 = 75%. Add the raw marks first, then convert. Speeds work the same way: driving 60 km at 60 km/h and then 60 km at 40 km/h gives an average speed of 48 km/h, not 50.
Other averages
- Geometric mean: for growth rates and returns. Returns of +50% and −50% have a geometric mean of about −13.4% a year, not 0%.
- Harmonic mean: for rates such as speed over equal distances, or the P/E ratio of a portfolio.
- Moving average: the mean of the last n values, used in stock charts (50-day and 200-day moving averages) and sales trends.
Frequently asked questions
How do you calculate the average of numbers?
Add all the numbers and divide by how many there are. The average of 12, 15, 18 and 23 is 68 ÷ 4 = 17.
What is the difference between mean and median?
The mean is the sum divided by the count. The median is the middle value when the numbers are sorted. The median is less affected by extreme values, so it suits skewed data such as incomes.
What if there is no repeated number for the mode?
Then the data has no mode, and the calculator shows “None”. If several values share the highest frequency, all of them are listed.
How do I calculate a weighted average?
Multiply each value by its weight, add the results and divide by the total of the weights. For weighted course grades, use the Grade Calculator.
Can I paste numbers from Excel?
Yes. Copy a column or row and paste it into the box. Line breaks, tabs, spaces and commas are all treated as separators.