Normality Calculator

Compute solution Normality with precision using molarity n factor mass volume and equivalent weight inputs. Live steps show equivalents and liters. Export results and example table to CSV or PDF. Designed for classrooms labs and professionals on desktop and mobile with a clean white interface. Includes customizable units validation helpers and clear formula notes

Calculate Normality

Choose a method and enter inputs. The result updates instantly in the browser and is also computed on submit.

From Molarity & n-factor
From Mass & Volume

Molarity (mol/L)

n-factor

Mass of solute (g)

Equivalent weight (g/eq)

Solution volume

Result N: — eq/L

Formula Used

Normality N measures equivalents of solute per liter of solution.

N = equivalents / liters, where equivalents depend on the reaction.
Acid–base: N = M × n, with n the number of replaceable H⁺ or OH⁻.
From mass: equivalents = mass / equivalent weight; then divide by liters.
For redox, n equals the electrons exchanged per mole of reagent.

Units: eq/L. Ensure volume is total solution volume.

Example Data Table

Sample compounds and computed Normality using common assumptions.

#	Compound	Route	Molarity (M)	n-factor	Mass (g)	Equivalent wt (g/eq)	Volume	Unit	Normality (N)	Notes
1	HCl	M×n	0.500	1					0.500	Monoprotic acid
2	H₂SO₄	M×n	0.250	2					0.500	Diprotic acid
3	NaOH	M×n	0.100	1					0.100	Monobasic base
4	HCl (mass)	mass/eqw			3.646	36.46	250	mL	0.400	3.646 g in 250 mL
5	H₂SO₄ (mass)	mass/eqw			4.900	49.00	500	mL	0.200	49 g/eq assumption

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Molar Mass of Gas Calculator Mole Fraction Calculator

Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.