Calculators

Converts imperial units of mass (pounds and ounces) to metric units (grams).

Calculates the Effective Field Goal Percentage (eFG%) in basketball, which adjusts field goal percentage to account for the extra value of three-point shots.

Calculates the grade (slope) of an elevation change, expressed as a percentage. This is often used in construction, landscaping, and surveying to determine the steepness of a slope.

Calculates the age difference between two individuals based on their birth dates.

Convert between millions and billions easily.

Calculates the ionic strength of a solution based on the concentrations and charges of the ions present.

Calculates the heat of combustion (energy released) from a combustion reaction given the mass of the substance burned and its specific heat of combustion.

Estimates the maximum current a PCB trace can handle based on width, thickness, and temperature rise.

This calculator converts units between the Centimeter-Gram-Second (CGS) system and the International System of Units (SI).

Calculates the molar ratio between two substances in a balanced chemical equation.