Treadmill Incline Pace
Calculator
Results
- Oxygen uptake (ml/kg/min)
- 45.3
- Equivalent flat pace (seconds per km)
- 287.081339
- Equivalent flat speed (km/h)
- 12.539999
- Treadmill speed (km/h)
- 12
Endurance training results
| Oxygen uptake (ml/kg/min) | 45.3 |
| Equivalent flat pace (seconds per km) | 287.081339 |
| Equivalent flat speed (km/h) | 12.539999 |
| Treadmill speed (km/h) | 12 |
formula-map diagram
- Oxygen uptake (ml/kg/min)
- 45.3
- Equivalent flat pace (seconds per km)
- 287.081339
- Equivalent flat speed (km/h)
- 12.539999
- Treadmill speed (km/h)
- 12
Formula breakdown
Formula
VO2 = 0.2×S + 0.9×S×grade + 3.5 (S in m/min)= 45.3
Note
Simplified model: these are standard endurance-training formulas (Riegel, ACSM, Banister TRIMP, ACWR, Minetti gradient cost and published fuelling rates) applied to the numbers you enter. They assume even effort, typical conditions and average physiology, and ignore terrain, heat, wind, sleep, individual sweat and carbohydrate tolerance, and training history, so results are indicative planning figures, not medical or coaching advice.
More in Endurance training
See all →Frequently asked questions
Why does treadmill incline change my equivalent outdoor pace?+
Running uphill requires more energy per unit of speed than running flat, so a given treadmill pace at an incline is physiologically harder, and therefore roughly equivalent to a faster flat-ground pace. The calculator converts your incline pace into the flat-pace effort it approximates.
What's the general rule for adjusting pace per percent of incline?+
A commonly used rule of thumb adds about 12-15 seconds per mile of effective pace adjustment for each percent of incline, though the exact relationship is nonlinear and becomes steeper at higher inclines. This calculator applies a more precise physiological model rather than a flat per-percent adjustment.
Does a 1% incline correction account for the lack of wind resistance indoors?+
Yes, the classic advice to set a treadmill to 1% incline for outdoor-equivalent effort exists specifically because running outside involves overcoming air resistance that a treadmill belt doesn't require. Some calculators build this baseline correction in before adding further incline for hill training.
Can I use this to simulate hill training indoors?+
Yes, this is one of its main uses: converting a target outdoor hill effort into an equivalent treadmill pace and incline lets you do structured hill workouts even without access to real hills, which is especially useful in flat regions or bad weather.
Why does incline affect pace more at higher speeds?+
The energy cost of overcoming gravity while running uphill scales with both incline and speed, so the same percent grade demands proportionally more added effort at a fast pace than at an easy jog. This is why the pace adjustment isn't a simple flat offset across all speeds.