Average Calculator
Statistics
30
Mean (Average)
30
Median
None
Mode
40
Range
150
Sum
5
Count
10
Min
50
Max
What is an Average Calculator?
An average calculator computes the key statistical measures of a dataset: mean (arithmetic average), median (middle value), mode (most frequent value), and range (spread). These four measures give a complete picture of any collection of numbers, whether you're analyzing test scores, temperatures, sales figures, or survey results.
How to Use
- Enter your numbers separated by commas, spaces, or line breaks (e.g., 10, 20, 30, 40, 50).
- The calculator instantly computes mean, median, mode, range, sum, count, min, and max.
- Results update in real time as you type or edit your data.
Frequently Asked Questions
What is the difference between mean, median, and mode?
Mean (average): sum divided by count. Median: the middle value when sorted — resistant to outliers. Mode: the most frequently occurring value. For symmetric distributions they're equal; for skewed data (like income), the median is often more representative than the mean.
When should I use median instead of mean?
Use median when data has outliers or is skewed. For example, average household income is misleading because billionaires inflate it — median income better represents the "typical" household. Median home prices are similarly preferred over mean.
What is the range?
Range = maximum value − minimum value. It measures the spread of the data. A large range indicates high variability. For more robust spread measurement, use standard deviation or interquartile range.
Can a dataset have multiple modes?
Yes. A dataset with two modes is "bimodal" and three modes is "trimodal." If all values occur equally, the dataset has no mode. The mode is the only average measure that can be used with non-numeric (categorical) data.
Definitions
- Mean: Sum / Count
- Median: Middle value when sorted
- Mode: Most frequent value
- Range: Max − Min