HIV Pre-Exposure Prophylaxis (PrEP) Risk Assessment Tool:
Individual Risk Calculator

1. What percent of the time do you use condoms when having anal sex, including both receptive (bottom) and insertive (top)? %
2. What percent of the time are you the insertive partner (top) when having anal sex? %
3. On average, how many times per month do you have anal sex?
4. Are you in a monogamous relationship with an HIV positive partner? Yes No


Switch to Population Risk Calculator

This tool uses a decision analysis model of HIV transmission to estimate the annual risk of HIV acquisition in men who have sex with men (MSM), and the impact of oral Pre-Exposure Prophylaxis (PrEP) with daily emtricitabine-tenofovir in reducing this risk. Click here to download model calculations for review.