XTRAW Tools
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VO2 Max Calculator helps you estimate VO2 max from a 1.5-mile run time or heart rate reserve. Use this free browser-based calculator from XTRAW Tools to compare inputs, estimate results, and plan your next step.
Estimate VO2 max from a 1.5-mile run time or heart rate reserve. It is designed for runners, walkers, cyclists, swimmers, lifters, coaches, students, fitness users, endurance athletes, gym users, and health reference users who want a fast browser-based estimate before relying on vehicle records, race software, training platforms, fitness trackers, competition scoring, route tools, manufacturer data, or professional sources.
People use this calculator when they need a quick way to estimate VO2 max, aerobic capacity, and cardio fitness reference values.
1.5-mi run: VO₂max = 483/time(min) + 3.5; HR method: 15 × (maxHR/restHR)
Example inputs: Estimation Method: 1.5-Mile Run Time; Run Time (min): 12 min; Run Time (sec): 0 sec; Resting Heart Rate: 60 bpm; Max Heart Rate: 190 bpm
Example result: Using the default run-time method, estimated VO2 max is 43.8 ml/kg/min; HR method with the default heart rates gives 47.5 ml/kg/min.
Yes. This calculator is free to use on XTRAW Tools.
No. XTRAW tools are designed for browser-based use without requiring an account.
Results may be estimates depending on the inputs, formula, rounding, method, equipment, route conditions, vehicle conditions, bodyweight, race conditions, or purpose of the calculator. Always verify important results before relying on them.
Disclaimer: This calculator is provided for general informational, educational, and convenience purposes only. It is not medical, health, training, coaching, safety, sports-science, nutrition, legal, financial, or professional advice. Fitness, race, VO2 max, powerlifting, and training outputs are estimates and can vary by method, equipment, bodyweight, conditions, and individual physiology. Always verify important results with a qualified professional, coach, clinician, governing body, or authoritative source before making decisions.