1-Mile Run VO2 Max Calculator

Calculate your VO2 max

Why the 1-mile test is submaximal

George's innovation was recognizing that a maximal all-out mile is hard on testers (especially first-time ones) and produces variable results because pacing skill dominates. By instructing subjects to run at a steady, fast but sustainable pace and then reading off their HR at the finish, the test extracts two pieces of information: how fast you ran (work rate) and how hard you had to work to run that fast (HR response). The combination gives a sharper VO2 max estimate than either alone.

In validation, George et al. found that subjects instructed to "run at a comfortably fast pace" produced finishing HRs in the 170–190 range — intense but not max. The formula is calibrated for this submaximal zone.

Protocol

1. Measure exactly one mile. A 400-meter track × 4 laps is 1,600 m (1.0 mi within 0.6%).
2. Wear a chest-strap HR monitor. Wrist optical HR is not accurate enough at this intensity — a 10 bpm error shifts VO2 max by ~2 ml/kg/min.
3. Warm up for 10 minutes with easy running and a few strides.
4. Run the mile at a "comfortably fast" pace — fast enough to elevate HR into the 170s by the final lap, but not an all-out sprint. Typical finishing times: 6:30–9:00 for fit runners, 9:00–12:00 for recreational exercisers.
5. Record your time and HR at the moment you finish. HR drops ~30 bpm in the first minute of recovery; delayed readings under-predict VO2 max.
6. Enter time, HR, sex, and weight in the calculator.

Accuracy and validation

George et al. validated the formula on 124 college-age men and women (mean age 23 ± 6). Results:

• Correlation with directly measured VO2 max: r = 0.84
• Standard error of estimate: 3.0 ml/kg/min
• Mean absolute error: ~2.3 ml/kg/min

Accuracy is best in the 18–29 age range. Between 30 and 45 the test still performs well but SEE rises to ~4 ml/kg/min. Above 45 or below 18, the age coefficient assumptions don't hold and the test under- or over-predicts systematically.

Worked example

A 22-year-old woman weighing 60 kg (132 lb) runs 1 mile in 8:45 (8.75 min) and finishes with HR 178 bpm. Her VO2 max estimate:

The 50th-percentile value for a 20–29 woman is 37.6 ml/kg/min, so 44 puts her around the 75th percentile — "Good" in ACSM categories.

1-mile run vs. Cooper and 1.5-mile

For most recreational testers, the Cooper 12-minute run or 1.5-mile run are easier to execute: no HR monitor required, no weight entered, just distance or time. The 1-mile George test's advantage is that it's submaximal — suitable for testers who can't safely hit all-out effort but can sustain a fast-but-controlled pace.

The 1-mile George test is also the preferred protocol in many college PE and ROTC fitness assessments, where testing large groups quickly (no "until exhaustion" component) is useful.

When to use a different test

• You're over 45. The age range in George's validation was 18–29. Use the Cooper test or Rockport walk.
• You don't have a chest-strap HR monitor. Wrist HR is too noisy for this formula. Use a no-HR test instead.
• You can't run for ~8 minutes at a fast pace. Use the Rockport 1-mile walk.

Gear for this test

The formula depends on accurate finishing HR — a chest strap is strongly preferred over wrist optical. As an Amazon Associate we earn from qualifying purchases.

Frequently asked questions

What is the George 1-mile run test formula?

VO2 max = 100.5 + 8.344·sex − 0.1636·weightKg − 1.438·time(min) − 0.1928·HR(bpm). Sex = 1 for male, 0 for female. George JD et al., Medicine & Science in Sports & Exercise, 1993;25(3):401-406.

Do I need to run the mile all-out?

No — the George test is submaximal. Run at a "comfortably fast" pace that elevates your HR into the 170s by the final lap. All-out sprinting invalidates the formula's calibration.

How accurate is the 1-mile run test?

In the original validation (124 college-age adults), correlation with directly measured VO2 max was r = 0.84 with a standard error of estimate of 3.0 ml/kg/min — highly accurate for the 18–29 age range.

Can I use wrist HR for the 1-mile test?

Not recommended. Wrist optical HR can err by 5–15 bpm during running, and the formula's HR coefficient is −0.19 per bpm — a 10 bpm error shifts the VO2 max estimate by ~2 ml/kg/min.

Is this test safe for older adults?

The formula was validated on college-age (18–29) subjects. It is not recommended for adults over 45 — use the Cooper run, Rockport walk, or Åstrand cycle test instead for more age-appropriate accuracy.