Number base converter
Convert integers exactly between bases 2–36, including negative and very large values, with common base results shown together.
Number list statistics
Calculate an exact decimal sum, mean, median, minimum, maximum and population or sample standard deviation for a list of numbers.
Updates as you type or change an option
One number per line, or separate values with semicolons. Use your local decimal separator; do not use thousands separators.
About this tool
Summarize a batch of measurements or compare the center and spread of a small dataset.
How to use
Enter one number per line or separate numbers with semicolons. Decimal points, the current language’s decimal separator and scientific notation are accepted; thousands separators are not. Copy or download the statistics.
The sum uses exact decimal arithmetic, and the mean is calculated from that sum and the count. The mean and other statistics display up to 12 significant digits. Sample standard deviation uses n−1 and needs at least two values; population deviation uses n. Limits: 10,000 values and 256 KiB input.
Common questions
Are all statistics exact?
The decimal sum is exact. Mean and other statistics use numerical calculation and display up to 12 significant digits. Sample standard deviation needs at least two values.
Which standard deviation should I use?
Population standard deviation describes the complete set you entered and divides by n. Sample standard deviation uses n−1 when those values are a sample of a larger population. With one value, the sample result is unavailable, while population standard deviation is zero.
How should I paste spreadsheet numbers and reuse the results?
Use one value per line or separate values with semicolons; remove thousands separators. The local decimal separator and a decimal point are accepted. Numeric-row copy and the full report preserve ungrouped values, while the display may round or use scientific notation. An out-of-range statistic is marked separately.
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