About TreadmillCalc
A premium, ad-free cardio dashboard built to give every runner and walker access to the same metabolic math used by exercise physiologists.
Why we built this
Most online calorie calculators rely on rough averages that ignore incline, pace, and body weight — the three variables that matter most on a treadmill. We wanted a tool that respects the science: fast, transparent, and honest about its assumptions.
Backed by ACSM equations
Every result is computed with the American College of Sports Medicine (ACSM) metabolic equations for walking and running — the same formulas taught in clinical exercise physiology programs and used in cardiopulmonary stress testing.
- Walking: VO₂ = 3.5 + 0.1·S + 1.8·S·G
- Running: VO₂ = 3.5 + 0.2·S + 0.9·S·G
- Calories/min = METs × 3.5 × body weight (kg) / 200
What we stand for
- Privacy first — nothing you enter ever leaves your device.
- No ads, no tracking — a clean experience, always.
- Open science — the formulas, thresholds, and assumptions are documented in plain language.
Questions or feedback? Get in touch — we read everything.