Finding Your Maximum Heart Rate
Your maximum heart rate (HRmax) is the single number every heart-rate zone is built on. Get it wrong by 10 beats and every zone shifts by 5–10 bpm, so it's worth getting right. Here's what it is, how to estimate it, and how to test it for real.
What max heart rate actually is
HRmax is the highest your heart can beat during all-out effort. It's largely genetic, drifts down slowly with age, and, importantly, is not a measure of fitness. A fitter athlete doesn't have a higher HRmax; they just do more work at the same heart rate.
You can't train your max heart rate up. Its only job is to anchor your zones.
Estimate it in five seconds
The fastest way to a number is an age formula. The famous 220 − age rule is easy to remember but was never derived from solid data. It runs high for older athletes and low for some younger ones. Modern equations like Tanaka (208 − 0.7 × age) are more accurate.
Rather than do the arithmetic, drop your age into the live calculator below: it shows six published formulas side by side so you can see the spread:
HRmax disyorkan
184bpm
Tanaka (2001)
Purata kesemua 6 model
183bpm
jika tidak pasti, gunakan ini
Enam peramal yang diterbitkan, sebelah-menyebelah (ralat lazim ±10–12 bpm)
| Fox / Haskell (1971) | 185 bpm |
| Tanaka (2001)Disyorkan | 184 bpm |
| Gellish (2007) | 183 bpm |
| Nes (2013) | 189 bpm |
| Gulati, wanita (2010) | 175 bpm |
| Londeree & Moeschberger | 181 bpm |
| Purata kesemua enam modelmin daripada peramal di atas | 183 bpm |
- Kami mengesyorkan Tanaka (2001) kerana ia diterbitkan semula daripada meta-analisis 18,712 orang dan lebih tepat merentas pelbagai umur berbanding peraturan lama 220 tolak umur, yang cenderung terlalu tinggi untuk atlet yang lebih tua.
- HRmax yang diramal formula membawa sisihan piawai kira-kira ±10–12 bpm, jadi dua atlet yang sama umur boleh berbeza sebanyak 20+ bpm. Gunakannya sebagai titik permulaan sahaja.
- Untuk ketepatan, lakukan ujian padang maksimum (cth. sesi ulangan bukit yang sukar atau ujian tanjakan diselia) dan baca HRmax sebenar anda daripada peranti.
PDF dengan keputusan diperibadikan anda, serta kod QR untuk membukanya semula bila-bila masa.
Notice how much the estimates differ? That spread is exactly why a formula is a starting point, not gospel.
Test it for real
A field test is more accurate than any equation. After a thorough warm-up:
- Run or ride 2–3 minutes hard uphill.
- Recover briefly, then go again, building to an all-out final 30 seconds.
- The highest number you see is close to your true HRmax.
Stop if you feel unwell: this is a maximal effort and not for beginners. One good test lasts a long time: HRmax drifts down only about 0.7 bpm per year.
Then build your zones
Once you have a trustworthy HRmax, everything downstream falls into place:
- Heart-rate zone calculator: the standard %HRmax 5-zone split.
- LTHR zones: if you'd rather anchor to lactate-threshold heart rate, which many coaches prefer.
- Max heart rate calculator: the six-formula tool from above, on its own page.
Train by the number, not the formula, and your easy days stay easy and your hard days stay honest.