Calculators

Calculates the payback period for a passive house investment by comparing initial costs with energy savings.

Calculates the scaled size or real size of an object, or determines the scale of a model.

Calculates the approximate flow rate of water in Gallons Per Minute (GPM) based on the Pressure (PSI) reading from a pressure gauge. This calculation assumes a standard water pipe size and doesn't account for friction loss or other factors.

This calculator converts volume in cubic yards to mass in metric tons, based on the material's density. It's useful for estimating the weight of materials like soil, concrete, or gravel.

Calculate the volume of a rectangular box in cubic meters and convert between various volume units.

Calculates the cubic footage of a rectangular space or object, such as a room or a box, given its length, width, and height.

Converts a decimal inch measurement into its equivalent fractional representation (inches and fractions of an inch).

A tool for performing arithmetic operations on measurements in feet and inches, including fractions and decimals.

Calculates the area of a rectangular space given its width and length, and converts the result between various area units.

Calculates the weight of aggregate materials in tons, given the volume and material density.