Calculators

Calculate the Heronian mean of two positive numbers. For example, what is the Heronian mean of 3 and 12?

Calculate the weighted average of a dataset.

Calculate the variance and standard deviation of a set of numbers.

Calculate the mean square of a set of numbers.

Calculate the maximum product based on the sum of two integers. For example, the sum of two numbers is 64. What is the maximum product of these two numbers?

Calculate the other number based on a given product and a number. For example, the product of two numbers is 360, and one of them is 20. What is another number?

Free calculator to find two numbers by given harmonic and arithmetic mean. For example, the harmonic mean of two numbers is 6.4, and their arithmetic mean is 10. What are the two numbers?

Free calculator to find two numbers by given geometric and harmonic mean. For example, the geometric mean of two numbers is 8, and their harmonic mean is 6.4. What are the two numbers?

Free online calculator to find two numbers by given geometric and arithmetic mean. For example, the geometric mean of two numbers is 20, and their arithmetic mean is 25. What are the two numbers?

Calculate the mean, median, mode, quartile, midrange, range, minimum, maximum and sum of a set of numbers.

Calculate the sum of harmonic numbers and the Nth harmonic number. For example, what are the 5th harmonic number and the sum of the first 5 harmonic numbers?

Calculate the sum of harmonic sequence and the Nth term of a harmonic sequence. For example, calculate the sum and the 10th term of a harmonic sequence 1/2, 1/5, 1/8.

Net Percentage Increase or Decrease Calculator is a free online tool for calculating net increase percentage or net decrease percentage.

Calculate the percentage based on two or more percentages. Or for calculating the value of two or more percentages of a number.

Calculate a number based on the given difference between two percentages of the number. Eg. what is the number if the difference between 55% and 15% of that number is 200?