Calculators

Calculates the number of combinations (binomial coefficient) of choosing k items from a set of n items.

Calculates the frequency of an event or occurrence per unit of time, given the frequency in a different unit of time.

Calculates the number of combinations (nCr) - the number of ways to choose k items from a set of n items, where order doesn't matter.

Calculates odds and probabilities, converting between the two and determining odds from event counts.

Performs addition or subtraction on two matrices of compatible dimensions.

Converts between ten different angle measurement units.

This calculator converts between years and decades. A decade is a period of 10 years.

Calculates volume, total surface area, lateral surface area, or base area of a cylinder.

Calculates the total surface area of various common 3D shapes.

Calculates percentages and degrees for sectors representing proportions of a whole in a pie chart.