C-H-O Molecular Mass Calculator
Calculate approximate molecular mass from carbon, hydrogen, oxygen, and nitrogen atom counts.
C-H-O Molecular Mass measurements
Enter your values, then calculate.
Result
How to calculate c-h-o molecular mass
Estimate molar mass for an organic molecular formula containing carbon, hydrogen, oxygen, and nitrogen.
How the calculation works
Each atom count is multiplied by its standard atomic mass; the four contributions are then added.
Example
C8H9NO2 contains 8 carbon, 9 hydrogen, 1 nitrogen, and 2 oxygen atoms, giving about 151.17 g/mol.
Frequently asked questions
Why is the result approximate?
Atomic weights are averaged natural-isotope values and the calculator is limited to four common organic elements.
C-H-O Molecular Mass Calculator
Each atom count is multiplied by its standard atomic mass; the four contributions are then added.
Let's understand your c-h-o molecular mass result.
Calculate a result above and this guide will help you interpret it using this calculator's own formula and explanation.
Pro Tips for C-H-O Molecular Mass
- Enter zero for an element absent from the formula.
- Use a full periodic-table tool when the compound contains other elements.
Common C-H-O Molecular Mass Mistakes to Avoid
- Using subscripts as decimal proportions instead of whole atom counts produces an incorrect molecular mass.
When to Use This Calculator
Estimate molar mass for an organic molecular formula containing carbon, hydrogen, oxygen, and nitrogen.