Calculators

Calculates the ratio of useful output energy or power to the total input energy or power, often as a percentage.

Simplifies a ratio or finds an equivalent ratio given one part.

Solves for sides of a special 45-45-90 right triangle (isosceles right triangle).

Finds the remainder after division of one number by another.

Calculates the result of raising a base number to a certain power (exponent).

Reduces a fraction to its simplest form (lowest terms).

Calculates the logarithm of a number to a specified base.

Estimates the costs of house cleaning services based on the size of the house, cleaning frequency, and service options.

Calculate the potential savings from switching to LED light bulbs, considering factors like bulb wattage, usage hours, and electricity cost.

This calculator finds the equation of a line parallel to a given line and passing through a specified point. It uses the slope-intercept form (y = mx + b).