Degree of unsaturation calculator
DBE from a molecular formula (halogens as H).
Calculator
How to use
DBE
$$\text{DBE} = \frac{2C + 2 + N - H - X}{2}$$
Educational use only. Double-check values for labs, homework, and exams.
DBE from a molecular formula (halogens as H).
$$\text{DBE} = \frac{2C + 2 + N - H - X}{2}$$
Educational use only. Double-check values for labs, homework, and exams.
Model / formula
Degree of unsaturation (index of hydrogen deficiency) — halogens count as H
Result
DBE = (2C + 2 + N − H − X) / 2 = 4