Empirical Formula Calculator.

Calculate normalized C/H/N/O/X mole ratios from entered elemental masses and atomic masses.

On-device calculationNo signup

Set your values

Results update as you type.

02 / ANSWER

Carbon mass

Hydrogen mass

Nitrogen mass

Oxygen mass

Aggregate halogen mass

Carbon atomic mass

Hydrogen atomic mass

Nitrogen atomic mass

Oxygen atomic mass

Aggregate halogen atomic mass

molesCarbon

0.000000

molesHydrogen

0.000000

molesNitrogen

0.000000

molesOxygen

0.000000

molesHalogen

0.000000

ratioCarbon

0.000000

ratioHydrogen

0.000000

ratioNitrogen

0.000000

ratioOxygen

0.000000

ratioHalogen

0.000000

How to Use

Moles = entered mass ÷ entered atomic mass; each non-zero amount is divided by the smallest mole amount. X is one aggregate halogen slot.

All material properties and conventions are entered explicitly. Results update automatically; no chemical database or laboratory procedure is inferred.

FAQs

What assumptions are used?

Calculate normalized C/H/N/O/X mole ratios from entered elemental masses and atomic masses. All values and conventions are entered explicitly; no chemical database or assay method is inferred.

Related Calculators

Activity Coefficient CalculatorCalculate an ideal-dilute Debye–Hückel activity coefficient from explicit ionic strength, charge, and A.Boiling Point CalculatorCalculate boiling point using an explicit model and coefficients.Buffer Capacity CalculatorCalculate monoprotic buffer capacity from total concentration, pKa, and pH.Buffer pH CalculatorCalculate buffer pH from pKa and conjugate base and acid amounts.Calibration Curve CalculatorFit a three-point linear calibration curve and estimate an unknown.Carbon Dating CalculatorEstimate radiocarbon age from remaining fraction and an explicit isotope half-life.