Empirical formula from masses
Empirical formula from masses: calculate a transparent estimate from the values and assumptions you provide.
Your inputs stay in your browser. Displayed results are rounded to a maximum of 12 significant digits.
Method and assumptions
Method version 1.0.0 · Updated
Calculate
Formula: Mole ratios normalized to the smallest, then approximated by small integers
Empirical formula from masses: calculate a transparent estimate from the values and assumptions you provide.
- symbols
- Element symbols separated by ;
- masses
- Matching masses separated by ;
- atomicMasses
- Matching atomic masses separated by ;
Numerical approximation; ambiguous near-ratios should be checked against experimental data.
Calculate with code
These short examples use the same inputs and core calculation as this tool. Adapt validation and formatting to your application.
JavaScript
const ratios = [40 / 12.011, 6.72 / 1.008]; // divide mole amounts by the smallest ratio