πŸ“Š Mean Median Mode Calculator

Updated: 2026-07-11
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How to Use

  1. Enter numbers in the text area, separated by commas, spaces, or newlines
  2. Click "Calculate" to instantly get statistics
  3. All calculations happen locally in your browser

About Central Tendency

Mean (Average): Sum of all values divided by count. Most commonly used, but sensitive to outliers.

Median: The middle value when data is sorted. Not affected by outliers. Better for skewed distributions.

Mode: The most frequent value(s). A dataset can have multiple modes (multimodal).

Range: The difference between maximum and minimum values.

Frequently Asked Questions

Q: When to use mean vs median?

Use mean for symmetric data without outliers (e.g., test scores). Use median for skewed data or data with outliers (e.g., income data β€” median income better represents typical income than average).

Q: What is mode useful for?

Mode works well for categorical and discrete data: most common test score, most popular product size, most used browser, etc. It's the only central tendency measure for non-numeric data.

Q: Is there a limit on data size?

Theoretically unlimited, but browser performance may slow with very large datasets. Recommend ≀100,000 numbers. Results shown to 4 decimal places.

Q: How to check if data is skewed?

When mean β‰ˆ median β‰ˆ mode, data is roughly symmetric. Mean > median > mode: right-skewed. Mean < median < mode: left-skewed. This tool shows all three for easy comparison.

Q: Does it support negative and decimal numbers?

Yes. Negative numbers, decimals, and integers are all fully supported.

Q: Does it work offline?

Yes. After loading, all calculations work offline since everything runs in your browser.