TOOLOG TOOL
Average Calculator | Mean, Median, Std. Deviation, Quartiles
Paste a number list to calculate average, median, sum, min, max, range, Q1, Q3, and standard deviation instantly. Supports thousands separators, currency symbols, decimals, and negative values.
Enter numbers to calculate average, median, quartiles, standard deviation, sum, and range instantly.
Commas, spaces, tabs, line breaks, currency symbols, and thousands separators are supported. Up to 5,000 finite numbers are calculated in your browser.
Quick stats from a number list
Paste or type scores, expenses, survey values, or measurements and get core statistics immediately:
- Count
- Sum
- Mean
- Median
- Minimum / Maximum / Range
- Q1 / Q3
- Population standard deviation
If labels, currency symbols, thousands separators, or stray text are mixed in, the calculator keeps the valid numbers, skips non-number entries, and shows how many were ignored.
Key features
- Automatic number parsing with comma, space, tab, and line-break separators
- Mean, median, sum, minimum, maximum, range, quartiles, standard deviation, and count in one result panel
- Decimal and negative number support for grades, balances, measurements, and survey responses
- Thousands separators and simple currency-formatted values such as
$1,200 - Ignored-entry count when text, blanks, or non-finite values are mixed into the list
- Copyable result summary for reports, class records, expense checks, and quick data reviews
How to use
- Paste or type your number list.
- Check the live count, sum, mean, median, minimum, maximum, range, quartiles, and standard deviation.
- If the ignored-entry count is not zero, review the original list for labels or extra text.
- Use Copy result when you need to share the summary.
Related tools
- Compare ratios or changes: Percent Calculator
- Average pace or travel records: Average Speed Calculator
- Normalize values first: Unit Converter
- Count text length before pasting labels: Text Counter
FAQ
How should I input numbers?
Use commas, spaces, tabs, or line breaks. For example, both 12, 18, 30 and one number per line work. Values such as 1,000 and $2,500 are treated as numbers.
Are decimals and negative values supported?
Yes. Values such as -2.5 and 3.14 are included in the average, median, sum, and range calculations.
How is median calculated?
The calculator sorts the values first. If there is an even number of values, it averages the two middle values.
Can I check standard deviation and quartiles?
Yes. Standard deviation is calculated as population standard deviation, and Q1/Q3 are the medians of the lower and upper halves of the sorted list.
What happens if text is mixed with numbers?
Text and blank entries are excluded from the calculation, and the ignored-entry count is shown in the result. As long as valid numbers remain, mean, median, and range are still calculated.