Calculators

Estimates body fat percentage using the US Navy Circumference Method. This method requires height, waist circumference, and neck circumference for men, and height, waist circumference, neck circumference, and hip circumference for women.

This calculator determines the optimal spacing for planting bulbs based on the bulb's diameter and the desired spacing factor.

Calculates the magnification power of a lens based on focal length or object/image distances.

Calculates the kinetic energy of electrons ejected from a material when light shines on it, based on photon energy and work function.

Calculates the rate at which an object cools down based on the temperature difference with its surroundings.

Calculates the speed at which an object orbits around another body, based on the mass of the central body and the orbital radius.

Performs arithmetic operations (add, subtract, multiply, divide) on binary numbers.

Calculates the sides of a 30-60-90 right triangle given one side length.

Calculates the cross product (vector product) of two vectors in 3D space.

Calculates the Cost of Goods Sold (COGS) for a given period, which represents the direct costs attributable to the production of the goods sold by a company.