Chem Calc

Chemistry calculator: reactions, molar mass, mass fraction, equation balancing.

Chem Calc is a powerful and easy-to-use chemistry calculator for students, teachers, and professionals. It helps you solve chemical problems, balance equations, and perform accurate calculations — both online and offline.

Most features work offline. Internet access is required only for reaction search.

Key Features Interactive Periodic Table Explore all chemical elements with detailed properties:

• atomic number and atomic mass
• electron configuration
• electronegativity
• atomic radius and oxidation states
• standard state and physical properties

Tap any element to view full information.

Reaction Search and Equation Balancer

• Search for common inorganic and organic reactions
• Automatic equation balancing
• Correct stoichiometric coefficients
• Support for complex formulas and brackets

Molar Mass Calculator Calculate molar mass for any valid chemical formula (for example: C6H12O6, Fe2O3, KMnO4).

• detailed element breakdown
• support for nested brackets
• crystal hydrates (CuSO4·5H2O)
• pH and Acid–Base Calculations
• pH calculation for acids and bases
• concentrations of H⁺ and OH⁻
• support for weak acids and bases using pKa / pKb

Gas Laws and Ideal Gas Calculator Solve problems using the ideal gas equation PV = nRT.

• pressure, volume, temperature, amount of substance
• automatic unit conversion (Pa, atm, mmHg, L, mL, K, °C)

Concentration and Dilution Tools

• molarity, molality, normality
• mass fraction and volume fraction
• dilution and solution mixing calculations

Calculation History All recent calculations are saved so you can quickly return to previous results.

Unit Converter Convert:

• mass, volume, amount of substance
• concentration units
• number of particles (Avogadro’s number)

Change units without re-entering values.

Why Choose Chem Calc

• Accurate and reliable data based on standard chemistry references
• Clean and intuitive interface
• Works offline for most calculations
• Suitable for school, university, and laboratory use

Regular updates with new features and improvements

Download Chem Calc and keep all essential chemistry calculations in one app — no paper tables or external references needed.

Follow updates: https://t.me/chemcalc_en

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