Cycling Training Zones Calculator
Calculate your 7 cycling training zones from FTP (Functional Threshold Power).
Get exact watt ranges for Zone 1 through Zone 7 and what each zone trains.
FTP — the cornerstone of modern cycling training
Functional Threshold Power (FTP) is the highest average power a cyclist can sustain for approximately 60 minutes. It became the central metric of cycling training after Andrew Coggan and Hunter Allen published Training and Racing with a Power Meter in 2006, replacing heart rate as the primary intensity measure.
FTP roughly corresponds to lactate threshold — the power where blood lactate begins to rise rapidly. Below FTP, you’re aerobic and can sustain effort. Above FTP, anaerobic contribution increases and time-to-exhaustion drops rapidly.
The seven Coggan zones express training intensity as a percentage of FTP:
| Zone | Name | % FTP | Heart Rate | Perceived effort |
|---|---|---|---|---|
| Z1 | Active Recovery | < 55% | < 68% | Very easy |
| Z2 | Endurance | 56-75% | 69-83% | Easy, all-day pace |
| Z3 | Tempo | 76-90% | 84-94% | Comfortably hard |
| Z4 | Threshold | 91-105% | 95-105% | Hard |
| Z5 | VO2 Max | 106-120% | > 106% | Very hard |
| Z6 | Anaerobic | 121-150% | N/A | Extremely hard |
| Z7 | Neuromuscular | > 150% | N/A | Maximum |
How to test FTP
Several FTP test protocols exist, each with tradeoffs:
20-minute test (most common):
- Warmup 15-20 min easy with two 1-min hard openers
- All-out 5 min effort (to wake up neuromuscular system)
- 10 min easy recovery
- 20 min all-out time trial
- Average power × 0.95 = FTP
The 0.95 multiplier accounts for the difference between 20-min power and true 60-min power. Most cyclists can hold roughly 5% more power for 20 minutes than for 60.
Ramp test (TrainerRoad protocol):
- 25-30 minute test on a smart trainer
- Power increases by 6% every minute
- Continue until failure
- FTP = 75% of best 1-minute power achieved
Ramp tests are shorter and less mentally taxing. Generally produce 5-10% higher FTP than 20-min tests for cyclists with strong sprints, slightly lower for diesel-engine endurance riders.
8-minute test (less common):
- Two 8-minute all-out efforts with 10 min between
- FTP = 90% of average of both efforts
- Better for very experienced riders
Hour record (gold standard):
- Actual 60-minute all-out time trial
- The definitive FTP measurement
- Brutal physically and mentally
- Few cyclists do this regularly
For most riders, the 20-minute test every 6-8 weeks is the practical standard.
Power-to-weight ratio (W/kg)
Absolute power matters less than power relative to body weight, especially on climbs. The W/kg metric:
W/kg = FTP ÷ body weight in kg
Pro cyclist categories (Coggan’s classifications):
| Category | FTP W/kg (men) | FTP W/kg (women) |
|---|---|---|
| World class (Tour winners) | 6.0+ | 5.4+ |
| Pro | 5.0-6.0 | 4.5-5.4 |
| Cat 1 | 4.5-5.0 | 4.0-4.5 |
| Cat 2 | 4.0-4.5 | 3.5-4.0 |
| Cat 3 | 3.5-4.0 | 3.0-3.5 |
| Cat 4 | 3.0-3.5 | 2.5-3.0 |
| Cat 5 (entry) | 2.5-3.0 | 2.0-2.5 |
| Recreational | < 2.5 | < 2.0 |
Tadej Pogačar reportedly sustains 6.2-6.4 W/kg in major mountain stages. Pauline Ferrand-Prévot has been measured at 5.5+ W/kg.
For context: a typical 75kg recreational male cyclist with 200W FTP = 2.67 W/kg. A 60kg female with 180W FTP = 3.0 W/kg.
Training zone purposes
Each zone develops specific physiological systems:
Zone 1 (Active Recovery): < 55% FTP
- Easy spinning for recovery between hard days
- 30-60 minutes typical
- Should feel like you’re barely working
- Used the day after hard intervals or races
Zone 2 (Endurance): 56-75% FTP
- The “fat-burning zone” with significant volume potential
- Builds aerobic base, capillary density, mitochondrial enzymes
- 60-300+ minute rides
- Should be conversational; long-haul pace
- Where pros spend ~70% of training time
Zone 3 (Tempo): 76-90% FTP
- Comfortably hard; you couldn’t have a long conversation
- Builds aerobic capacity at moderate intensity
- 20-90 minute efforts typical
- The “sweet spot” (88-94% FTP) is a popular focus for time-crunched riders
Zone 4 (Threshold): 91-105% FTP
- At or near FTP — race-pace simulation
- 5-30 minute efforts
- Cumulative target: 40-60 minutes per session in this zone
- Where most race-specific fitness is built
Zone 5 (VO2 Max): 106-120% FTP
- Hard intervals for maximal aerobic power
- 3-8 minute efforts with equal recovery
- Classic structures: 5 × 5 min, 6 × 4 min, 8 × 3 min
- Highly productive but high recovery cost
Zone 6 (Anaerobic): 121-150% FTP
- Hard 30-second to 3-minute efforts
- Develops anaerobic capacity
- Important for races with attacks and tactical surges
Zone 7 (Neuromuscular): > 150% FTP
- Maximum sprints, under 30 seconds
- Develops peak power, recruitment patterns
- Important for sprint finishes, short hard efforts
Polarized training in cycling
Stephen Seiler’s polarized training research (originally from rowing and skiing) applies strongly to cycling:
Optimal distribution for endurance cyclists:
- 80% Zone 1-2
- 5-10% Zone 3
- 10-15% Zone 4-5
- Minimal Zone 6-7
Most amateur cyclists do too much Zone 3 (the “moderate trap”) and not enough Zone 1-2 or Zone 4-5. Either go truly easy or truly hard. Spending hours at 80-85% FTP is “junk” intensity for most riders.
The 80/20 implementation:
- Long Sunday ride: 3-5 hours in Zone 2
- Two interval sessions: hard work in Zone 4-5
- 1-2 easy recovery rides
- Total: 8-15 hours/week for serious amateurs
FTP improvement timelines
Typical FTP gains by training history:
| Starting point | First year gain | Years 2-3 | Years 4+ |
|---|---|---|---|
| Untrained (under 2.0 W/kg) | 30-50% | 10-20% | 5-10% |
| Recreational (2.5-3.0 W/kg) | 10-15% | 5-10% | 2-5% |
| Trained (3.5-4.0 W/kg) | 5-10% | 2-5% | 1-3% |
| Highly trained (4.0+ W/kg) | 2-5% | 1-3% | 0-2% |
The first year of structured training produces enormous gains. After 4-5 years of consistent training, FTP improvement slows dramatically. Genetic potential, age, and training history all matter.
Sweet Spot Training (SST)
Hunter Allen and Frank Overton popularized “sweet spot” intervals at 88-94% FTP (high Zone 3 / low Zone 4). The pitch: nearly the FTP-development benefits of threshold work, but with less recovery cost.
Sweet spot intervals: 2 × 20 min, or 3 × 15 min, or 4-5 × 10 min with short recoveries.
Effective for time-crunched riders (1-hour workout sessions) and during base/build phases. Less effective for peak fitness — true threshold and VO2 work are required for top performance.
Common cycling training mistakes
- Stale FTP: not retesting after fitness changes. Your zones are based on old FTP, so workouts are too easy or too hard.
- All Zone 3, all the time: the moderate trap. Hours of “comfortably hard” produce hours of fatigue without specific adaptations.
- Skipping Zone 2: feeling that easy rides “don’t count.” They do.
- Outdoor/indoor mismatch: outdoor FTP is typically 5-10% higher than indoor FTP. Use separate values.
- Neglecting recovery: hard intervals require 36-48 hours of recovery; many riders try to stack consecutive hard days.
Bottom line
FTP (Functional Threshold Power) is the cornerstone of modern cycling training. Coggan’s 7-zone system expresses training intensity as % of FTP. The 80/20 polarized model (80% easy Zone 1-2, 20% hard Zone 4-5+) consistently outperforms moderate-intensity training. W/kg matters more than absolute power for climbing performance — pro tour winners sustain 6.0+ W/kg. Retest FTP every 6-8 weeks for accurate zones. Sweet spot intervals (88-94% FTP) are efficient for time-crunched riders. Most amateur cyclists train too much in Zone 3 and not enough in either Zone 2 or Zone 4-5.