Calculators

This calculator converts any number into its equivalent representation in billions.

Calculates the length of a rafter based on the roof's span, rise, and overhang. This calculator helps ensure correct roof truss dimensions.

Calculates the appropriate furnace BTU size based on square footage and climate conditions.

Calculates the amount of concrete and cement needed for slabs and blocks, based on dimensions and mix ratios.

Calculates the dimensions of a spiral staircase, including the number of treads, tread width, and overall diameter.

Calculates the mass percentage of a component in a mixture.

Calculates the bond order of a molecule based on the number of bonding and antibonding electrons or from the number of bonds between two atoms.

Calculates the estimated number of calories burned based on the number of steps taken, weight, and stride length.

Helps determine the appropriate TV screen size based on viewing distance and resolution.

Calculates impulse (force times time) and relates it to the change in momentum. It helps understand the relationship between force, time, mass, and velocity in physics.