Classifies walking ability using the Functional Ambulation Categories (FAC), a 6-level scale: 0 (non-ambulatory/complete assistance needed), 1 (continuous manual support), 2 (intermittent support or guarding), 3 (supervision only), 4 (independent on level surfaces), 5 (fully independent including stairs, inclines, and uneven terrain).
Use the full interactive calculator below, or