How to use incline pace
Compare a treadmill session with flat running effort.
Enter belt speed
Use the speed displayed after the belt has reached its set pace.
Add the incline
Use the percentage shown on the console, not the number of clicks.
Compare like with like
Use the flat-equivalent pace for effort comparisons, not as a guaranteed outdoor race time.
What does this tool do?
Running or walking uphill on a treadmill costs more energy than covering the same distance on the flat. This tool applies grade adjustments from the ACSM energy equations to estimate a flat-equivalent pace.
The Formula
Equivalent flat speed = treadmill speed × (1 + grade × k), with k ≈ 4.5 running or 12 walkingFrequently Asked Questions
What incline on a treadmill equals running outdoors?
About 1% is often used to compensate for the lack of air resistance outdoors. The grade adjustment here is about effort at a given speed, not a direct outdoor conversion.
Does holding the handrails change the effort?
Yes. Supporting body weight reduces the workload, sometimes substantially. The estimate assumes you are not holding the rails.