Average Calculator
Tính trung bình, trung vị và thống kê dãy số
Average Calculator: Mean, Median, Sum, Min, Max & Count
This free average calculator computes six essential statistics — mean, median, sum, minimum, maximum, and count — from any list of numbers in one click. Whether you are grading student scores, analyzing sales figures, or crunching survey results, you get a complete statistical snapshot instantly without spreadsheets or formulas. Simply paste your numbers and let the tool do the work.
Benefits
Instead of running separate calculations for each metric, this tool delivers all six descriptive statistics at once, saving time and reducing errors:
- All-in-one output: Mean, median, sum, min, max, and count are calculated simultaneously so you never have to switch tools.
- Outlier detection made easy: Comparing the mean and median immediately reveals whether your data is skewed or contains extreme outliers.
- Works on any device: Runs entirely in the browser — no installation, no account, no data sent to a server.
- Handles large datasets: Paste hundreds or thousands of values and get results in milliseconds.
Use cases
The average calculator is useful across a wide range of everyday and professional scenarios:
- Education: Calculate a student's average grade, GPA component, or class performance summary.
- Business & finance: Analyze monthly revenue, compute average transaction values, or find the median product price to set competitive pricing.
- Research & surveys: Summarize Likert-scale responses, test scores, or experiment measurements with descriptive statistics.
- Health & fitness: Track average workout times, daily step counts, or weekly weight measurements over a period.
- Data quality checks: Use min and max to spot data-entry errors or unexpected values before deeper analysis.
How to use
Getting your statistics takes just three steps:
- Step 1 — Enter your numbers: Type or paste a list of numbers into the input field. Separate values with commas, spaces, or line breaks (e.g., 12, 45, 7, 89, 23).
- Step 2 — Click Calculate: Press the calculate button to process the entire list instantly.
- Step 3 — Read your results: View all six statistics — mean, median, sum, min, max, and count — displayed clearly in the results panel.
Frequently asked questions
What is the difference between mean and median? The mean is the sum of all values divided by the count, while the median is the middle value when the list is sorted — the median is more resistant to outliers and skewed distributions than the mean.
Does the calculator support negative numbers and decimals? Yes, you can enter any real numbers including negatives (e.g., -15) and decimals (e.g., 3.14); the tool handles them all accurately.
Is there a limit to how many numbers I can enter? There is no hard limit — the calculator processes large lists directly in your browser without uploading data anywhere, so performance depends only on your device.
Are my numbers stored or shared? No, all calculations happen locally in your browser and no data is transmitted or saved, so your numbers remain completely private.