Grams To Meq Calculator

Input any three values—grams, valence, molecular weight, or milliequivalents (meq)—to calculate the missing parameter quickly and accurately.

The Grams to Meq Calculator is a useful tool for converting grams of a substance into milliequivalents (meq) or vice versa. This calculation is commonly required in chemistry, medicine, and biology for precise quantification of ionic concentrations and substance equivalence. It simplifies complex formulas by automating the calculations, ensuring accuracy and efficiency.

Conversion Formulas

Milliequivalents (meq): $\text{meq} = \frac{\text{grams} \times \text{Valence} \times 1000}{\text{Molecular Weight}}$
Grams: $\text{grams} = \frac{\text{meq} \times \text{Molecular Weight}}{\text{Valence} \times 1000}$
Valence: $\text{Valence} = \frac{\text{meq} \times \text{Molecular Weight}}{\text{grams} \times 1000}$
Molecular Weight: $\text{Molecular Weight} = \frac{\text{grams} \times \text{Valence} \times 1000}{\text{meq}}$

Variable	Description	Unit Example
$\text{grams}$	Mass of the substance	g, kg, mg, lb
$\text{Valence}$	Ionic charge or combining power of the ion	Unitless
$\text{Molecular Weight}$	Weight of one mole of the substance	g/mol, kg/mol
$\text{meq}$	Milliequivalents	meq, eq

Solved Calculations

Example 1:

Input Parameters	Value
$\text{grams}$	0.5 g
$\text{Valence}$	2
$\text{Molecular Weight}$	58.44 g/mol
$\text{meq}$	$\frac{0.5 \times 2 \times 1000}{58.44} = 17.11 \, \tex$

Example 2:

Input Parameters	Value
$\text{meq}$	25
$\text{Valence}$	1
$\text{Molecular Weight}$	74.55 g/mol
$\text{grams}$	$\frac{25 \times 74.55}{1 \times 1000} = 1.863 \, \$