HIV Risk Calculator: Per-Act Transmission Estimator
Your Estimated Risk:
*Note: These figures are statistical averages per act based on CDC data. They do not guarantee an outcome and are for educational purposes only.| Exposure Type | Estimated Risk per 10,000 Exposures | “1 in X” Probability |
| Receptive Anal Intercourse | 138 | 1 in 72 |
| Insertive Anal Intercourse | 11 | 1 in 909 |
| Receptive Vaginal Intercourse | 8 | 1 in 1,250 |
| Insertive Vaginal Intercourse | 4 | 1 in 2,500 |
| Oral Sex (Receiving or Giving) | Low to Negligible | — |



