CHEMISTRY TOOLS

Practical Chemistry Calculators

Calculate common laboratory quantities quickly. All calculations run locally in your browser.

Concentration Converter

Convert between molar and common mass-based concentration units.

Value

From

Molecular Weight (g/mol) Required when either unit is mass-based.

Result

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For dilute aqueous solutions, ppm is treated approximately as mg/L.

Calculate molarity, moles, mass or solution volume.

Calculation

Moles (mol)

Solution Volume

Result

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Formula: M = n / V

Calculate normality, equivalents, mass or solution volume.

Calculation

Equivalents (eq)

Solution Volume

Result

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Formula: N = equivalents / volume (L)