Pick the level you have time for. Your scores save on this device automatically.
The HEFT (Hazard-Event Fitness Test) is a physical-readiness battery that answers one question: could you actually handle it if something went wrong right now — carry a person to safety, move under load, keep going when it counts? It runs at three levels: 5 tests in about 15 minutes with no equipment, 7 tests (~25 min) with a pull-up bar, or the full 9 tests (~45 min) with a bar, weights, and a run route.
Across the full nine tests you measure balance, explosive power, single-leg strength, upper-body endurance, grip endurance, anaerobic work capacity, aerobic capacity, and a loaded carry. The overall score uses a weighted geometric mean, not a simple average — so one weak area drags the number down instead of hiding behind five strong ones. Your lowest test is the Force Multiplier: the single highest-ROI thing to train next.
Every test earns its slot from published research, not bro-science — and each one is an honest proxy, labeled as one. The specific studies, the exact hedges, and what each test does and doesn't prove are laid out in full on the evidence page.
Want the full methodology, the scoring math, and every source? Read what fitness really means and the evidence behind each test →
Or go straight to the numbers: every standard the HEFT scores against, each cited and hedged →
Five physical capacities. One number for where your physical readiness stands, and the one test worth training.
Here's what's different: HEFT (Hazard-Event Fitness Test) doesn't just hand you a number, it points to the one test where training pays off most, and shows the math behind why. No guessing. No bro science.
We recommend a brief warm-up before testing. , or start whenever you're ready.
100% free. No account required. Your results stay on your device.