Molar Ratio Calculator
Calculate mole fraction in a mixture.
About Molar Ratio Calculator
Stoichiometric ratios for Molar Ratio scale reactant amounts by the coefficient ratio in the balanced equation to find how much product forms. Balanced coefficients are the exact conversion factors between reactants and products.
Formula
Molar Ratio
Product moles = reactant moles x (product coefficient / reactant coefficient)
- coefficient
- The number in the balanced equation
Worked example
With the default values below, Molar Ratio Calculator returns Product Moles of 1.500. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Reactant molesminimum 0
- 3
- Reactant coefficientminimum 0
- 2
- Product coefficientminimum 0
- 1
Results
- Product Moles
- 1.500 mol
- Moles per Coefficient
- 1.500
- Ratio
- 1.500
Step by step
- 1Values used
- 2Molar Ratio
- 3Product Moles= 1.500 mol
- 4Moles per Coefficient= 1.500
- 5Ratio= 1.500
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 3 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Molar Ratio calculated?
Product moles = reactant moles x (product coefficient / reactant coefficient) Stoichiometric ratios for Molar Ratio scale reactant amounts by the coefficient ratio in the balanced equation to find how much product forms.
Why does Molar Ratio matter?
Balanced coefficients are the exact conversion factors between reactants and products.
What values do I need to enter?
This calculator takes 3 inputs: Reactant moles, Reactant coefficient, Product coefficient. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.