Organic Chemistry Calculators

Organic chemistry calculators provide essential computational tools for molecular analysis, reaction planning, and compound characterization. These specialized calculators help students and researchers determine molecular formulas, calculate reaction yields, estimate physical properties, and prepare solutions for organic synthesis with precision and efficiency.

Use comprehensive organic chemistry tools for stoichiometric calculations, limiting reagent determination, colligative property estimation, and solubility parameter approximation. Each calculator implements fundamental organic chemistry principles to support accurate laboratory work, compound identification, and synthetic pathway planning in organic chemical research.

⚠ Disclaimer: This calculator provides results based on standard formulas and simplified assumptions. It is intended for educational purposes only and should not be used for professional, medical, industrial, or experimental applications without expert verification.

Molar Mass of Organic Compound

Enter molar mass (g/mol)

Percent Composition of C,H,O,N in Compound

Mass of Carbon (g) Mass of Hydrogen (g) Mass of Oxygen (g) Mass of Nitrogen (g) Total compound mass (g)

Empirical Formula from Elemental Analysis

Mass C (g) Mass H (g) Mass O (g) Mass N (g)

Using atomic masses: C=12, H=1, O=16, N=14

Molecular Formula from Molar Mass

Empirical formula mass (g/mol) Molar mass of compound (g/mol)

Reaction Stoichiometry Calculator

Moles of reactant Stoichiometric coefficient

Limiting Reagent in Organic Reaction

Moles of Reactant A Moles of Reactant B

Percent Yield in Organic Synthesis

Theoretical yield (g) Actual yield (g)

Acid-Base Titration for Organic Acids

Moles of acid Moles of base

Molecular Weight from Functional Group Analysis

Sum of functional group masses (g/mol)

Density → Molar Concentration for Liquids

Density (g/mL) Molar mass (g/mol)

Refractive Index Correlation to Concentration

Measured refractive index (nD) Slope of correlation (dn/dC)

Concentration = (nD – n0) / (dn/dC)

IUPAC Naming Helper Calculator

Enter common name

Simple placeholder: shows upper-case

Mass of Reagent Required Calculator

Moles required Molar mass (g/mol)

Volume of Liquid Reagent Calculator

Moles required Molar mass (g/mol) Density (g/mL)

Molarity of Solution from g Solute

Mass of solute (g) Molar mass (g/mol) Solution volume (L)

Grams Required for Target Moles

Target moles (mol) Molar mass (g/mol)

Boiling Point Elevation Calculator

Molality (mol/kg) Boiling point elevation constant Kb (°C·kg/mol)

Freezing Point Depression for Organics

Molality (mol/kg) Freezing point depression constant Kf (°C·kg/mol)

Partition Coefficient (logP) Estimator

LogP value

Solubility Parameter Approximation

Input parameter (e.g., cohesive energy density)