Welcome to ChemToolsHub
A comprehensive platform for chemical calculations and structure conversion tools. Explore our collection of free online tools.
Latest Tools
More »Atomic Properties Calculator
Calculate and view detailed properties of chemical elements using their atomic symbols.
pH Calculator
Calculate pH values from H+ concentration, pOH, or acid/base solutions. Includes visual pH scale and detailed results.
3D Conformer Generator
Generate and visualize 3D molecular conformations from SMILES notation. This tool helps you explore different possible 3D arrangements of your molecules.
Most Used Tools
More »Structure Converter
Convert between different chemical structure formats including SMILES, InChI, IUPAC, MOL file, and 2D structure images.
Chemical Structure Editor
Draw, edit, and convert chemical structures. Supports multiple formats including SMILES, MOL, InChI, and image export. Features structure recognition from images.
Molecular Weight Calculator
Quickly calculate molecular weight of chemical formulas, supporting complex organic and inorganic compounds
Popular Tools
More »Solution Preparation Calculator
Calculate required amounts of solute and solvent for preparing solutions of specific concentrations. Supports molarity, molality, mass percentage, and PPM.
Molecular Descriptor Calculator
Calculate and visualize molecular descriptors including molecular weight, LogP, TPSA, and other important properties for chemical compounds
Structure Similarity Calculator
Compare chemical structures and calculate similarity scores using different fingerprint methods and similarity metrics.
Phase Diagram Calculator
Calculate and visualize phase states of substances at different temperatures and pressures, including critical points, triple points, and phase boundaries
Chemical Equation Balancer
Balance chemical equations automatically. Support complex redox reactions and get stoichiometric coefficients.
Thermodynamics Calculator
Calculate thermodynamic properties including enthalpy, entropy, Gibbs free energy, and heat capacity. Visualize property changes with temperature.