Molecular Weight Calculator
Calculate the molar mass of any chemical compound instantly. Enter a formula and get results using IUPAC-standard atomic weights.
Enter formulas like H2O, NaCl, C6H12O6, Ca(OH)2
About the Molecular Weight Calculator
The Molecular Weight Calculator is an indispensable tool for chemistry students, researchers, and professionals who need to determine the molar mass of chemical compounds. It accepts chemical formulas in standard notation, including parentheses and subscripts, and calculates the total molecular weight using IUPAC-standard atomic weights. The calculator identifies each element, counts the atoms, and sums the weighted contributions.
Molecular weight is essential for preparing solutions, calculating reaction yields, converting between mass and moles, and understanding chemical properties. Whether you are balancing equations, preparing reagents, or studying for an exam, this calculator provides accurate results instantly. It supports both simple formulas like H2O and complex ones like Ca3(PO4)2 or C6H12O6.
The tool also displays the elemental composition of the compound, showing the percentage by weight of each element. This breakdown is useful for understanding compound composition and for analytical chemistry calculations.
How to Use the Molecular Weight Calculator
Calculate molecular weight in two simple steps:
- Enter the chemical formula in the input field (e.g., H2O, NaCl, C6H12O6).
- Click Calculate to see the molecular weight in g/mol and the elemental breakdown.
Use standard notation: uppercase for element symbols, numbers for subscripts, and parentheses for grouped atoms. The calculator will parse the formula and display the total molecular weight along with the weight contributed by each element.