Running Functional Threshold Pace Calculator
Your running functional threshold pace (rFTP) is the pace you could sustain for a maximal 60-minute effort. It anchors all training zones. Enter your 30-minute time trial result and this calculator applies the standard 95% adjustment to estimate your rFTP, then derives six training zones based on Coggan's power zone percentages adapted to pace.
rFTP formula
rFTP (sec/km) = test average pace (sec/km) / 0.95 (for 30-min test)
rFTP (sec/km) = test average pace (sec/km) (for 60-min test)
A higher seconds-per-km value means a slower pace. Zone boundaries are applied as multipliers to the rFTP seconds-per-km value.
Running training zones (Coggan zones adapted for pace)
- Zone 1 (active recovery): above 129% of rFTP sec/km (very easy).
- Zone 2 (endurance): 114-129% of rFTP sec/km (comfortable aerobic).
- Zone 3 (tempo): 106-113% of rFTP sec/km (moderate).
- Zone 4 (threshold): 100-106% of rFTP sec/km (comfortably hard).
- Zone 5 (VO2max): 90-100% of rFTP sec/km (hard, 3-8 min intervals).
- Zone 6 (anaerobic): below 90% of rFTP sec/km (very hard, short intervals).
Running threshold pace: frequently asked questions
What is running functional threshold pace?
Running functional threshold pace (rFTP) is the fastest pace you can sustain for approximately 60 minutes in a maximal effort. It is the running equivalent of FTP in cycling and represents the lactate threshold pace used to set training zones.
How is rFTP estimated from a 30-minute test?
Perform a maximal 30-minute run. Your rFTP is approximately 95 percent of your average pace for that effort (i.e., slightly slower per kilometre or mile), because a 30-minute effort is slightly above threshold. This adjustment is based on the Coggan FTP protocol adapted for running.
What are the running training zones based on rFTP?
Zone 1 (active recovery): slower than 129% of rFTP time per km. Zone 2 (endurance): 114-129% of rFTP time per km. Zone 3 (tempo): 106-113%. Zone 4 (threshold): 100-106%. Zone 5 (VO2max): 90-100%. Zone 6 (anaerobic): faster than 90%. Zones are expressed as percentage of threshold time, so a higher percentage means slower pace.
Can I use a race result instead of a time trial?
Yes. A recent 10 km race pace is approximately equal to threshold pace for most runners. A half-marathon race pace is approximately 95-98 percent of threshold pace. Use the estimated rFTP field to enter a pace derived from race performance.
How often should I retest my rFTP?
Retest every 4 to 8 weeks during a training block, or whenever you feel your fitness has changed significantly. A higher rFTP (faster threshold pace) indicates improved aerobic fitness.
Official sources
- Coggan AR, Allen H (2010). Training and Racing with a Power Meter, 2nd ed. VeloPress. Zone definitions adapted for running pace.
- Billat VL (2001). Interval training for performance: a scientific and empirical practice. Sports Medicine, 31(1), 13-31. PubMed 11219499.
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. See our methodology.