Science Converters

Grams to moles, molarity, dilution (C1V1=C2V2), density, light years to km, and significant figures calculators for chemistry and physics students.

Chemistry and physics problems require precise unit handling — moles, molarity, density, significant figures, dilution ratios. These calculators use the standard formulas (C1V1=C2V2, n=m/M, d=m/V) and show the full solution steps so you can follow along or check your own work.