The conversion is approximately:
1 liter ≈ 61.02 cubic inches
Therefore, a 3.0-liter engine has a CID of approximately:
3.0 liters * 61.02 cubic inches/liter ≈ 183.06 cubic inches
Keep in mind that this is an approximation. The actual CID might vary slightly depending on the engine's specific design and measurement tolerances.