Average Calculator
Enter a list of numbers to instantly calculate mean, median, mode, range, sum, and count.
Enter Numbers
Mean (Average)
30
Count
5
Sum
150
Median
30
Mode
None
Range
40
How to Use This Calculator
Type or paste your numbers separated by commas, spaces, or new lines. The calculator instantly shows the mean, median, mode, range, sum, and count for your dataset. Useful for students, teachers, researchers, and business analysts.
Definitions and Formulas
Mean = Sum of all values ÷ Count
Median = Middle value when sorted (average of two middles for even count)
Mode = Most frequently occurring value(s)
Range = Maximum value − Minimum value
Sum = Total of all values
Count = Number of values entered
Example
Data: 4, 7, 13, 2, 7, 9, 4, 7
Sorted2, 4, 4, 7, 7, 7, 9, 13
Mean(2+4+4+7+7+7+9+13) ÷ 8 = 6.625
Median(7+7) ÷ 2 = 7 (middle two)
Mode7 (appears 3 times)
Range13 − 2 = 11
FAQ
Use median when your data has extreme outliers. For example, Nigerian household income data — a few very high earners drag the mean upward, making it unrepresentative of typical Nigerians. The median income is the income level where half earn more and half earn less, making it a better measure of "typical" income. Median is always preferred for skewed distributions.
If every value appears exactly once, the dataset has no mode (all values occur equally). If multiple values tie for most frequent, the dataset is bimodal or multimodal. Mode is most useful for categorical or discrete data — for example, the most common shoe size sold, or the most popular price point for sachet water in Lagos markets.
There is no hard limit — you can paste hundreds of numbers separated by commas. The calculator processes them all in real time in your browser without sending data to any server. For very large datasets (thousands of values), you may notice a brief calculation delay.