Average Calculator
Mean, median, mode, range, and standard deviation — all at once.
More Than Just Average
A single "average" number often misleads. This tool computes mean, median, mode, range, sum, count, minimum, maximum, and standard deviation — so you see the full shape of your data.
Common Uses
- Exam scores and grade analysis
- Survey responses and rating aggregation
- Sales / revenue / performance comparisons
- Fitness tracking (weight, pace, reps over time)
Frequently Asked Questions
What's the difference between mean, median, and mode?
Mean is the arithmetic average. Median is the middle value when sorted. Mode is the most common value. Each tells a different story — compare them to spot skew.
When should I use median instead of mean?
Use median when data has outliers or is skewed — like income or house prices. A few extreme values distort the mean; the median is resistant.
What is standard deviation?
A measure of spread: how far, on average, values deviate from the mean. Low SD = data clustered tightly; high SD = widely spread.
How many numbers can I enter?
Paste any list — comma, space, or newline separated. The tool handles thousands of values with instant calculation in the browser.