Percentage calculator
Calculate the percentage of a number, a percentage increase and a percentage decrease. Free percentage calculator.
Maths
Calculator · Maths
Average Calculator
Enter up to 6 numbers — the calculator returns the mean, median, minimum, maximum and sum.
How we calculate
Arithmetic mean = sum of all numbers divided by count. Median = middle value after sorting.
Example: average of 1, 2, 3, 4, 5
Sum = 15, count = 5, mean = 15/5 = 3, median = 3.
Frequently asked questions
What is the arithmetic mean?
The sum of all values divided by the number of values. Example: mean(2,4,6) = 12/3 = 4.
What is the median?
The middle value when numbers are sorted. For an even count, it is the average of the two middle values.
What is the difference between mean and median?
Mean is sensitive to outliers; median is not. Use median for skewed distributions.
What is the mode?
The most frequently occurring value. This calculator does not compute mode, but mean and median are usually more useful.
How do I calculate weighted average?
Multiply each value by its weight, sum the products, divide by total weight. This calculator computes unweighted mean.
What is range?
Range = maximum − minimum. It shows how spread out the data is.
What is variance?
Average of squared differences from the mean. Standard deviation is the square root of variance.
Can I calculate grade average?
Yes — enter each grade as a number. For weighted grades use a weighted average formula.
How many numbers can I enter?
Up to 6 using the individual fields. For more, use a spreadsheet or statistics software.
What if numbers are negative?
Negative numbers are handled correctly — the calculator sums all values including negatives.
Indicative result
For educational purposes.