VO2 Max Calculator vs Heart Rate Zone Calculator
Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.
VO2 Max Calculator
Estimate your VO2 max — the maximum rate at which your body can take up and use oxygen during exhaustive exercise — from a recent race time without needing a lab treadmill or metabolic cart. VO2 max is the single best whole-system measure of aerobic fitness and is strongly predictive of all-cause mortality.
- Answers
- Estimated VO2 Max (ml/kg/min)
- Inputs
- Race Distance, Race Time (minutes), Age, Body Weight
Heart Rate Zone Calculator
Calculate your personalised heart rate training zones using the Karvonen heart rate reserve method, which factors in resting heart rate to give zones that actually reflect your cardiovascular fitness. Used by coaches and endurance athletes to keep aerobic, threshold, and VO2-max sessions in the right intensity bands.
- Answers
- Heart Rate Training Zones (bpm)
- Inputs
- Age, Resting Heart Rate, Calculation Method
At a glance
| VO2 Max Calculator | Heart Rate Zone Calculator | |
|---|---|---|
| Category | Fitness | Health |
| Answers | Estimated VO2 Max | Heart Rate Training Zones |
| Inputs | 4 | 3 |
| Result unit | ml/kg/min | bpm |
When to use each
Estimate your VO2 max — the maximum rate at which your body can take up and use oxygen during exhaustive exercise — from a recent race time without needing a lab treadmill or metabolic cart. VO2 max is the single best whole-system measure of aerobic fitness and is strongly predictive of all-cause mortality.
Calculate your personalised heart rate training zones using the Karvonen heart rate reserve method, which factors in resting heart rate to give zones that actually reflect your cardiovascular fitness. Used by coaches and endurance athletes to keep aerobic, threshold, and VO2-max sessions in the right intensity bands.