HIFreeTools

Free Average Calculator

Enter your numbers in the fields — add as many as you need, or paste a whole list — to get the mean (average), median, mode, range, sum, and count at once.

1
2
3
4

Tip: you can also paste a whole list (like “10, 20, 30”) into any field and it splits into separate rows automatically.

Results (4 numbers)
25
Mean (average)
25
Median
none
Mode
30
Range
100
Sum
4
Count

Quick answer

The average (mean) of a set of numbers is the sum of the numbers divided by how many there are. The median is the middle value when sorted, the mode is the most frequent value, and the range is the largest value minus the smallest.

Formula & method

Mean (average)

mean = (sum of all values) ÷ (count of values)
  • sum — all values added together
  • count — how many values there are

Median = middle value when sorted (or the average of the two middle values). Mode = the value that appears most often. Range = max − min.

Examples

Example 1: Mean of 4 numbers
Input
10, 20, 30, 40
Result
Mean 25
Why
(10 + 20 + 30 + 40) ÷ 4 = 100 ÷ 4 = 25.
Example 2: Median with an odd count
Input
3, 1, 4, 1, 5
Result
Median 3
Why
Sorted: 1, 1, 3, 4, 5 — the middle value is 3.
Example 3: Mode and range
Input
2, 7, 7, 9
Result
Mode 7, range 7
Why
7 appears most often; range is 9 − 2 = 7.

When to use this tool

  • Averaging grades, prices, measurements, or survey results.
  • Checking the typical value in a data set with the median.
  • Getting a quick sum and count alongside the average.

Common mistakes

  • Confusing mean and median. A few very large values pull the mean up but barely move the median.
  • Forgetting a set can have no mode (all unique) or several modes (ties).
  • Including non-numeric text; only valid numbers are counted.

Frequently asked questions

＋ How do I calculate the average of numbers?

Add all the numbers together, then divide by how many numbers there are. The tool does this and also shows the median, mode, and range.

＋ What's the difference between mean and median?

The mean is the sum divided by the count; the median is the middle value when the numbers are sorted. The median is more robust to extreme outliers.

＋ What is the mode?

The mode is the value that appears most frequently. A set can have one mode, several, or none if every value is unique.

＋ How do I enter my numbers?

Type each number in its own field and press “+ Add number” for more, or paste a comma- or line-separated list into any field and it splits into separate rows automatically. Anything that isn't a number is ignored.

＋ Is my data uploaded?

No. All calculations run in your browser, so your numbers never leave your device.

  • ✓ Free to use
  • ✓ No sign-up required
  • ✓ Runs entirely in your browser — nothing is uploaded.
  • ✓ Formula and method shown above
Last updated: How we calculateReport a correctionDisclaimer

Provided “as is” for general information only — results may be inaccurate, so verify before you rely on them. No warranty; use at your own risk.

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