Health & Fitness
VO₂max — Rockport 1-Mile Walk Test
Estimate VO2 max (aerobic fitness) from a 1-mile walk or run time and heart rate using the Rockport formula.
Preparing your result…
What this calculator does
Calculates VO2 Max Calculator using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
VO₂max = 132.853 − 0.0769 × weight (lb) − 0.3877 × age + 6.315 × sex (1 male, 0 female) − 3.2649 × time (decimal min) − 0.1565 × heart rate at finish
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • Rockport/Kline one-mile walking estimate: VO2max mL/kg/min=132.853−0.0769×weight lb−0.3877×age+6.315×sex−3.2649×time minutes−0.1565×finish HR, sex=1 male/0 female.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • Define sex coding, pounds and decimal minutes; 15:30 is 15.5 min, not 15.30. Follow the maximal-effort walking test protocol and original population. The track equation is not automatically valid for treadmill walking, running or a casual walk.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | Weight (lb) | Age (years) | Walk time — minutes (min) | Estimated VO₂max |
|---|---|---|---|---|
| Worked example | 170 | 35 | 15 | 41.5746 mL/kg/min |
| Half the amounts | 85 | 18 | 8 | 88.545 mL/kg/min |
| Double the amounts | 340 | 70 | 30 | -49.7045 mL/kg/min |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
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