Chemical Calculators Directory

🧪 Acid-Base Chemistry

pH, pOH, Ka, Kb, Henderson–Hasselbalch, Ksp, buffers, and weak acid/base equilibria.

14 calculators

• Acid Dissociation Constant
• Amphiprotic Salt Approximation
• Base Dissociation Constant
• Degree of Dissociation
• Henderson–Hasselbalch Equation (acid buffer)

📊 Analytical Chemistry

Beer–Lambert law, chromatography, NMR shift, LOD/LOQ, conductivity, and recovery.

40 calculators

• Absorbance Definition
• Beer–Lambert Law
• Buffer Capacity
• Calibration Curve
• Chromatographic Resolution

⚛️ Atomic Structure

Wave-particle duality, photon energy, Bohr model, Rydberg equation, Coulomb's law.

4 calculators

• Bohr Model Deltae Between Two Orbitals
• Kinetic Energy Of Ejected Electrons
• Photon Energy
• Wave Speed

⏱️ Chemical Kinetics

Integrated rate laws, half-lives, Arrhenius equation, and Eyring transition state theory.

10 calculators

• Arrhenius Equation
• Differential Rate Law
• First-Order Half-Life
• Integrated First-Order Rate Law
• Integrated Second-Order Rate Law

🔥 Chemical Reactions

Equation balancing using linear algebra for any formula or SMILES input.

1 calculators

• Balance Reaction

⚡ Electrochemistry

Nernst equation, cell potential, Faraday's laws, free energy, and electrolysis.

5 calculators

• Charge–Current–Time Relation
• Faraday’s First Law of Electrolysis
• Nernst Equation
• Nernst Equation at 25 °C
• Standard Cell Potential

💨 Gas Laws

Ideal & real gas equations, effusion, kinetic theory, and mixture laws.

12 calculators

• Avogadros Law
• Boyles Law
• Charles Law
• Charless Law
• Combined Gas Law

🔷 Inorganic Chemistry

Crystal field theory, ionic strength, Debye–Hückel, XRD, magnetic moments, and lattice parameters.

17 calculators

• Bond Valence Equation
• Born Solvation Equation
• Bragg’s Law
• Crystal Field Stabilization Energy (octahedral)
• Crystal Field Stabilization Energy (tetrahedral)

🧬 Organic Chemistry

SMILES-based reaction prediction, mechanism labeling, DBE, stereochemistry, and logP.

17 calculators

• Degree of Unsaturation (DBE / IHD)
• Enantiomeric Excess
• Eyring–Polanyi Linear Form
• Hammett Equation (equilibrium form)
• Hammett Equation (rate form)

🌡️ Physical Chemistry

Thermodynamics, quantum mechanics, colligative properties, nuclear decay, and statistical mechanics.

103 calculators

• Activity (concentration convention)
• Activity (mole-fraction convention)
• Amagat’s Law of Partial Volumes
• Amount of Substance from Mass
• Amount of Substance from Particles

⚗️ Stoichiometry

Molarity, dilution, percent yield, density, moles, ppm/ppb, molality, and more.

5 calculators

• Dilution
• Mass Percent
• Molarity
• Mole Fraction
• Percent Yield