Maximum Aerobic Speed Calculator (MAS)
Estimate maximum aerobic speed from a timed field test and calculate training speeds at percentages of MAS.
Training percentages
| % MAS | Speed | Pace /km | Pace /mile |
|---|
What is maximum aerobic speed?
MAS can be defined and measured in multiple laboratory and field-test ways. This result is a field-test estimate based only on average speed during your entered time trial.
How this MAS calculator works
Distance in meters ÷ elapsed seconds gives m/s; multiplying by 3.6 gives km/h.
Field testing vs laboratory MAS
A short time trial is not identical to laboratory-measured vVO2max or MAS.
How to calculate MAS from distance and time
Use a measured distance and accurate elapsed time under repeatable conditions.
Training with percentages of MAS
Each row multiplies estimated MAS by its percentage and converts that target speed into pace.
MAS interval examples
The interval tools calculate distance from speed × time or time from distance ÷ speed.
MAS vs VO2 max
MAS is speed while VO2 max describes oxygen uptake. See the VO2 max calculator, VDOT, training paces, and heart-rate zones.
FAQ
Does this guarantee performance?
No. It is an educational field-test estimate.