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Use your lab results to build personalized training zones and calorie targets. No account, no signup.
Zones calculated via Karvonen (heart-rate reserve). Max HR estimated as 220 − age — off by ±10 bpm for most people. For precise zones from your actual ventilatory thresholds, book a lab test.
Uses the Mifflin-St Jeor equation, generally within ±10% of a measured RMR. For your exact number and fuel mix, book an RMR test.
A 45-minute test on a metabolic cart gives you numbers accurate to within 1%. You leave the same day with your real VO₂ max, thresholds, heart-rate zones, and RMR — no math required.
Book your test →