Average Calculator
Find mean, median, and mode from a list of numbers in seconds, with optional weighted average support, simple chart feedback, and clear step-by-step explanations for school, finance, and data checks.
Choose mean, median, or mode as the headline result. The calculator also shows the full statistical summary below.
24.17
21.5
18
--
12, 18, 18, 25, 30, 42
Added values and divided by count
How to Use the Average Calculator
- Paste or type your numbers using commas, spaces, or line breaks between each value.
- Select whether you want mean, median, or mode to be the main highlighted result.
- Optionally enter weights if you also want to calculate a weighted average for marks, grading, or category scoring.
- Click calculate to view the result, step explanation, sorted list, and quick distribution summary.
Mean vs Median vs Mode
The mean is the arithmetic average, found by adding all values and dividing by how many values there are. The median is the middle value after sorting the list. The mode is the value that appears most often.
How to calculate average
To calculate the mean, sum all numbers and divide by the count. For example, if your marks are 70, 80, and 90, the mean is 240 divided by 3, which gives 80.
When median is more useful
The median is helpful when your data has outliers. A very high or low number can pull the mean away from the center, while the median still reflects the middle position of the sorted list.
Real-life examples
Average tools are useful for exam scores, household budgets, monthly sales, survey results, investment tracking, and comparing repeated measurements in science or fitness data.
Frequently Asked Questions
How do I calculate average?
Enter numbers and click calculate.
Is this tool free?
Yes.
Can I calculate median and mode?
Yes.
Can I enter multiple numbers?
Yes.