MathBench

Science & Lab Calculators

Solution prep is simple math with expensive failure modes: a decimal slip in a dilution wastes a day's experiment, and weighing an anhydrous mass for a hydrated salt halves a buffer's concentration. These calculators handle the two calculations every bench runs on (C₁V₁ = C₂V₂ dilutions and mass-molarity conversions) with the unit handling built in, so molar stocks, percent solutions, and X-fold buffers each convert correctly or refuse loudly rather than guessing.

Both tools restate their answers as bench instructions ("measure 25 mL of stock, bring to 500 mL total"), because the recipe, not the number, is what prevents mistakes. The molarity calculator carries formula weights for common reagents with hydrates listed as they appear on the bottle, and the dilution tool flags impossible targets before you reach for a pipette. The physics side starts with the projectile motion simulator: an animated launch with real air drag, where temperature, elevation, and shape each pull their true weight in the trajectory. If there's a calculation your bench or classroom repeats weekly, the contact page is the fastest way to get it built.