Iss
Iss is a fast, free health calculator. Enter AIS Region 1 (worst), AIS Region 2 (2nd worst) and AIS Region 3 (3rd worst) to get an instant, accurate result — complete with the formula, a step-by-step worked example, and answers to common questions, all on one page and private to your browser.
Formula
ISS = sum of squares of 3 highest AIS body region scores. AIS 6 = ISS 75 (unsurvivable)
- ISS = sum of squares of 3 highest AIS body region scores. AIS 6 = ISS 75 (unsurvivable) — for clinical reference only.
Iss
Iss calculation.
Frequently asked questions
Is this validated?
Yes, based on published clinical scoring systems. Always confirm with current guidelines.