Cycling Heart Rate Zones

Cycling-specific heart rate zone calculator. Train by intensity across endurance, tempo, threshold, and VO₂ max efforts using your personal HRmax.

Cycling HR Zones vs Running HR Zones

Cycling HR at any given perceived effort is typically 5–10 bpm lower than running HR at the same RPE. The seated position, lower muscle mass recruitment, and reduced venous return from the legs all suppress peak cardiac output. Athletes who use their running HRmax to set cycling zones consistently overshoot and end up training harder than intended.

Practical rule: either measure cycling HRmax with a dedicated bike test, or subtract ~8 bpm from your running HRmax and use that as the cycling reference.

HR vs Power — Why Serious Cyclists Use Both

Heart rate lags behind effort by 30–60 seconds and drifts upward over the course of a long ride (cardiac drift), so it is a poor tool for pacing short intervals. Power (watts) responds instantly and never drifts. Most structured cycling plans define zones in watts, then use HR as a secondary check on cumulative fatigue.

Sample Weekly Cycling Structure (8 hours)

2 × endurance rides (Zone 2, 90–120 min each) — aerobic base
1 × threshold session (Zone 4, 3–5 × 8–10 min, ~55 min total) — lactate clearance
1 × VO₂max session (Zone 5, 5 × 3 min hard / 3 min easy, ~45 min total) — top-end power
1 × long ride (Zone 2 with occasional Zone 3 climbs, 3–4 h) — durability

Heart Rate Zones (reference: age 30, HRmax ≈ 187 bpm, Tanaka)

Zone	Name	% HRmax	BPM (age 30)	Primary use
1	Recovery	50–60%	94–112	Warm-up, recovery, active rest
2	Endurance	60–70%	112–131	Aerobic base, fat oxidation
3	Aerobic	70–80%	131–150	Tempo, aerobic capacity
4	Threshold	80–90%	150–168	Lactate threshold intervals
5	Maximum	90–100%	168–187	VO₂ max, neuromuscular power

What Each Zone Feels Like (Talk Test)

Zone 1 · Recovery: You can sing.
Zone 2 · Endurance: You can hold a full conversation.
Zone 3 · Aerobic: Speaking becomes noticeably harder.
Zone 4 · Threshold: Only short phrases of a few words.
Zone 5 · Maximum: Almost impossible to speak.

Maximum Heart Rate Formulas

Tanaka (2001) — our default for men: HRmax = 208 − 0.7 × age. Meta-analysis of 18,712 participants.
Gulati (2010) — our default for women: HRmax = 206 − 0.88 × age. Developed on 5,437 women.
Gellish (2007): HRmax = 207 − 0.7 × age. Developed on regularly active adults.
Nes / HUNT (2013): HRmax = 211 − 0.64 × age. Norwegian HUNT Fitness Study on 3,320 healthy adults.
Fox (1971) — historical reference: HRmax = 220 − age. Simple and widely quoted, but a 1970s approximation with ±10–12 bpm variability that overestimates for active adults.

No formula is universally “correct.” The only way to know your true HRmax is a supervised maximum-effort test.

Limitations

Zone estimates from age-based formulas carry ±10 bpm uncertainty, because HRmax varies substantially between individuals of the same age. Medication that affects heart rate (for example beta-blockers) makes percentage-of-HRmax targets unreliable. These are training estimates, not medical advice — anyone who needs individual medical guidance should use a qualified health professional.

Disclaimer: This calculator is for informational purposes only and does not provide medical advice. Always consult with a healthcare professional before starting any new exercise program.

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