Marathon Pace Calculator
Calculate the pace you need to run a marathon based on your goal time.
RunningCalculate your VO2 max based on your running distance and time.
--mL/kg/min
Estimated VO2 Max
Learn more about the calculator and its creator
I'm a software developer and year long triathlete. I spend a lot of time running. Most calculators don't tell you how they calculate the VO2 max, so I made this simple calculator that uses your running distance and time to calculate the VO2 max.
The Running VO2 Max Calculator estimates your maximal oxygen uptake based on your recent race performance using Jack Daniels' formula, a widely respected method in the running community.
The calculator uses Jack Daniels' formulas:
Race Distance
Your race distance (between 1500m and 50km for accurate results)
Race Time
Your finish time for the race.
Calculate Race Velocity
Convert race distance and time into velocity (meters/minute)
Calculate VO2 max %
Apply the first formula using race time
Calculate VO2
Apply the second formula using race velocity
Calculate Final VO2 max
Divide VO2 by VO2 max %
Minimum Distance
1500 meters (approximately 1 mile)
Maximum Distance
50 kilometers
Recent Performance
Use a recent race result for the most accurate estimation
Distance Limitations
Results may be less accurate for distances outside the recommended range
Laboratory Testing
For the most accurate results, consider professional laboratory testing
Jack Daniels' Running Formula
This calculator provides a reliable estimation of your VO2 max based on race performance. For the most accurate results, ensure your race distance falls within the recommended range and use a recent performance.
VO2 max, also known as maximal oxygen uptake, is the maximum amount of oxygen your body can utilize during intense exercise. It's measured in milliliters of oxygen per kilogram of body weight per minute (ml/kg/min) and is considered the gold standard for measuring aerobic fitness and cardiorespiratory endurance.
Athletic Performance
Higher VO2 max generally correlates with better endurance performance, especially in activities like running, cycling, and swimming.
Health Indicator
A higher VO2 max is associated with reduced risk of cardiovascular disease, better overall health, and increased longevity.
Training Guidance
Knowing your VO2 max helps in setting appropriate training intensities and monitoring fitness progress.
Recovery Capacity
Higher VO2 max values typically indicate better recovery abilities between training sessions.
The following tables show typical VO2 max values (ml/kg/min) for men and women of different ages and fitness levels:
Age | Poor | Fair | Good | Excellent | Superior |
---|---|---|---|---|---|
Men | |||||
20-29 | <38 | 38-41 | 42-45 | 46-50 | >50 |
30-39 | <34 | 34-37 | 38-41 | 42-46 | >46 |
40-49 | <30 | 30-33 | 34-37 | 38-42 | >42 |
50+ | <25 | 25-28 | 29-32 | 33-37 | >37 |
Women | |||||
20-29 | <32 | 32-35 | 36-39 | 40-43 | >43 |
30-39 | <28 | 28-31 | 32-35 | 36-39 | >39 |
40-49 | <26 | 26-29 | 30-33 | 34-37 | >37 |
50+ | <24 | 24-27 | 28-31 | 32-35 | >35 |
Note: Elite athletes typically have much higher VO2 max values than those listed above. Elite endurance athletes often have values between 70-85 ml/kg/min for men and 60-75 ml/kg/min for women.
Genetics
Up to 50% of your VO2 max potential is determined by genetic factors.
Training Status
Regular endurance training can improve VO2 max by 5-20%.
Age
VO2 max typically decreases by about 10% per decade after age 30.
Gender
Women typically have VO2 max values about 10-15% lower than men due to physiological differences.
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