Average (Mean) Calculator

Quickly compute the average of a list of numbers or marks

Tips

  • Separate numbers with commas or spaces.
  • Ignore non-numeric values; they will be skipped.
  • Use the Grade Percentage tool for weighted averages and letter grade mapping.

📊Formula

Average = ÎŖ(values) / N

💡How it works

Enter your numbers separated by commas or spaces and click Calculate. Useful for averaging marks, scores, or datasets.

ℹī¸ What is Average Calculator?

An average calculator computes the mean, median, mode, and range of a set of numbers. These statistical measures describe the central tendency and spread of data, commonly used in academics, data analysis, finance, and everyday decision-making.

📐 Formula

Mean = ÎŖx / n | Median = middle value | Mode = most frequent
ÎŖx— Sum of all values in the dataset
n— Count of values in the dataset
Median— Middle value when data is sorted
Mode— Value that appears most often

✏ī¸ Worked Example

Data Set: 4, 7, 7, 9, 11, 15
  1. 1Sort: 4, 7, 7, 9, 11, 15
  2. 2Mean = (4+7+7+9+11+15) / 6 = 53 / 6 ≈ 8.83
  3. 3Median = average of 3rd and 4th values = (7+9) / 2 = 8
  4. 4Mode = 7 (appears twice, more than any other)
  5. 5Range = 15 − 4 = 11
✅ Result: Mean = 8.83 | Median = 8 | Mode = 7 | Range = 11

💡 How to Interpret Results

  • ▸Use the mean for symmetric data without extreme outliers (e.g., test scores, temperatures).
  • ▸Use the median when data has outliers (e.g., income data — a few very high earners skew the mean).
  • ▸Use the mode for categorical data or to identify the most common value (e.g., most popular shoe size).
  • ▸A large range or high standard deviation means data is spread out; a small range means values cluster tightly.
  • ▸When mean > median, the distribution is right-skewed (few high values pulling the mean up).

❓ Frequently Asked Questions

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