Add every number, then divide by how many numbers there are.
MATH & STATISTICS
Average Calculator
Find the arithmetic mean, median, mode, sum, count and range of your numbers. Use weighted mode when some values should count more than others.
✓ Free to use•Browser-based calculations•Works on mobile
YOUR DATA
Enter your numbers
Your numbers are processed in your browser and are not sent to this calculator page.
YOUR RESULTS
Calculation summary
Your results will appear here
Enter your data and select Calculate average to see the statistics.
Arithmetic mean—Sum ÷ count
Median—
Mode—
Sum—
Count—
Minimum—
Maximum—
Range—
Distinct values—
Weighted total—Total weight—
How the average was calculated
Sorted values
UNDERSTAND THE MATH
What is an average?
An average is a value used to represent a group of numbers. The arithmetic mean is the most common meaning of “average”: add all the values and divide the total by the number of values. The median is the middle value after sorting, while the mode is the value or values that appear most often.
Use when values have different importance, such as subject credits or assessment weights.
The difference between the largest and smallest values.
How to use this calculator
- Enter or paste numbers separated by commas, spaces or new lines.
- For a regular average, keep Simple average selected. For values with different importance, choose Weighted average and enter one weight per value.
- Choose how many decimal places to show.
- Select Calculate average to see the mean, median, mode and supporting statistics.
- Use the copy buttons to copy your results or sorted data.
COMMON QUESTIONS
Average calculator FAQs
What is the formula for average?
The arithmetic mean equals the sum of all values divided by the number of values: Mean = Σx ÷ n.
What is the difference between mean, median and mode?
The mean uses the total divided by the count. The median is the middle value in sorted order. The mode is the most frequently occurring value; a dataset can have more than one mode or no repeated mode.
Can I calculate a weighted average?
Yes. Choose Weighted average and enter one weight for each number in the same order. The calculator multiplies each value by its weight, adds those products and divides by the sum of the weights.
Can I include negative numbers and decimals?
Yes. Negative numbers, zero and decimal values are supported. Use a period as the decimal separator, such as 12.5. Commas separate values.
Are repeated numbers counted more than once?
Yes. Every entry counts separately. Repeated values contribute to both the sum and the count, and they are included when calculating the mode.
When should I use the median instead of the mean?
The median can better represent a typical value when a dataset has unusually high or low outliers, because it is less affected by extreme values than the mean.