Dipole moment ($\mathrm{\mu }$) between two charges separated by distance $\mathrm{d}$ is $\mathrm{\mu }=\mathrm{q}\times \mathrm{d}$.

The unit of dipole moment is Debye. One Debye $={10}^{-18}\mathrm{esu} \mathrm{cm}$.

$$\begin{gathered} ={10}^{-18}\mathrm{esu} \mathrm{cm}\times \frac{3.335\times {10}^{-10}\mathrm{C}}{\mathrm{esu}} \times \frac{{10}^{-2}\mathrm{m}}{\mathrm{cm}} \\ =3.335\times {10}^{30 }\mathrm{C} \mathrm{m}. \end{gathered}$$