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Average Calculator
Need to find the average of a list of numbers? This free calculator instantly works out the mean, total, count, minimum, and maximum values — and shows you the full step-by-step calculation so you understand exactly how the result was reached.
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Average Formula
Average = Sum of Values ÷ Number of Values
The average, also known as the arithmetic mean, is calculated by adding all values together and dividing the total by the number of values. It is one of the most commonly used statistical measures.
Example Calculation
Input: Values: 10, 20, 30, 40
Output: Average = (10 + 20 + 30 + 40) ÷ 4 = 25
Common Uses
- • Student Marks
- • Grade Calculations
- • Business Reports
- • Data Analysis
- • Performance Tracking
- • Statistical Calculations
How the Average Calculator Works
1
Enter Numbers
Enter the numbers separated by commas or spaces.
2
Calculate Average
The calculator adds all values and divides the total by the number of values.
3
View Results
See the average, sum, count, minimum value, and maximum value instantly.
Questions about this calculator
An average, also known as the arithmetic mean, is the sum of all values divided by the total number of values.
Add all values together and divide the total by the number of values.
Average = Sum of Values ÷ Number of Values.
Yes. You can calculate the average of exam marks, grades, scores, and other educational data.
In most cases, the terms mean and average refer to the same arithmetic calculation.
Yes. The calculator supports both whole numbers and decimal values.
How to calculate an arithmetic average
Enter numbers separated by commas, spaces, or line breaks. The calculator adds every valid number and divides the sum by the count. It also shows the sum, number of values, minimum, and maximum so you can check the dataset.
Average formula and example
Arithmetic mean = sum of values ÷ number of values. For 12, 15, 18, and 25, the sum is 70 and the count is 4, so the average is 70 ÷ 4 = 17.5.
When the average can mislead
A very high or low outlier can pull the arithmetic mean away from a typical value. For strongly skewed data such as house prices or response times, compare the mean with the median. This tool calculates the unweighted arithmetic mean; if different scores carry different percentages, use a weighted-average or grade calculator instead.
Input tips
- Decimals and negative numbers are accepted.
- Do not include units or currency symbols in the input.
- Review the displayed count to confirm that every intended value was recognised.
Learn more
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