The accuracy of Iran's ballistic missiles has improved over time, but it varies depending on the specific missile system. As of early 2024, here's an overview of the estimated accuracy for some of Iran's key ballistic missile systems:

1. Shahab-3 and its variants:

• Earlier versions: Circular Error Probable (CEP) of about 2-3 km
• Improved versions: CEP possibly reduced to 500m-1km

2. Sejjil-2:

• Estimated CEP of 500m or less

3. Fateh-110 and its variants (shorter range):

• Later versions claimed to have a CEP of about 10-50m

4. Qiam-1:

• Estimated CEP of about 500m

5. Emad:

• Reported to have a CEP of 500m or less, with some sources claiming as low as 250m

It's important to note that:

1. CEP (Circular Error Probable) is the radius within which 50% of missiles are expected to land.

2. These figures are estimates based on publicly available information and may not reflect the most current capabilities.

3. Accuracy can be affected by factors such as range, weather conditions, and countermeasures.

4. Iran claims higher accuracy for some of these systems, but these claims are often treated with skepticism by outside analysts.

5. Iran continues to work on improving the accuracy of its missile forces, so these figures may be subject to change.

Given the sensitive nature of this information, these estimates should be treated as approximate. Actual performance may vary, and the most current data may not be publicly available.​​​​​​​​​​​​​​​​