ChemTrix Elements, The Free Chemistry Calculator

ChemTrix Elements is a simple, free, calculator for common chemical problems.
Other chemistry calculators make it hard to do simple things. Not ChemTrix. ChemTrix was built by chemists, for chemists. It has powerful, convenient, time-saving features that make common chemical calculations a snap.
Enter a chemical formula, and ChemTrix Elements calculates:
- Molar mass (molecular weight)
- Exact (monoisotopic) mass
- Nominal mass
- Percentage composition by mass
ChemTrix Elements features:
- A clean, elegant interface
- Quick, simple, and accurate formula entry using a purpose-built keypad, including programmable buttons for even more flexibility and speed
- Natural chemical syntax
- A history of all entered formulae
- Detailed listings of the properties of all the elements in the periodic table, including electronic configurations, stable isotopes, and electronegativities.