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Kalkulator Zona Detak Jantung

Pick a method, enter your values, and get bpm ranges for Zones 1-5 (or a simple 3-zone view). Zone 2 is highlighted automatically, and you can copy results or share a link.

Sample values auto-calculate on load so you can see Zone 2 right away. Everything runs in your browser until you copy a URL on purpose.

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Cara menggunakan (3 langkah)

  1. Choose a method: quick %HRmax, Karvonen (HRR) if you know resting HR, or %LTHR if you train with threshold data.
  2. Enter HRmax directly or estimate from age. The default 5-zone model works for most people; open Advanced settings if you need 3-zone, 7-zone LTHR, or custom boundaries.
  3. Hasil diperbarui otomatis. Gunakan "Salin tabel" atau "Salin URL" untuk membagikan tampilan yang sama persis.

Targets are training guidelines, not medical advice. Stop if you feel unwell and consult a professional if needed.

Input

HRR uses both HRmax and resting HR. LTHR uses your threshold heart rate if you have it from a field test.

HRmax input

Measure when calm (e.g., after waking). Required for Karvonen (HRR).

If unknown, prefer HRmax or HRR. LTHR is usually from a threshold test or recent race.

Highlights which zone your current heart rate sits in.

Advanced settings (optional)

Adjust zone model, custom boundaries, rounding, and how zones touch. You can leave these as they are for most workouts.

Custom boundaries must increase and end at 100%. 5-zone defaults: 50,60,70,80,90,100.

Comma or space separated. Example for 3 zones: 60 75 85 100.

Enter or adjust values to see bpm ranges for each zone. Zone 2 is highlighted by default.

Zone target
Zone 2 mid-point appears here.
HRmax used
Resting HR
LTHR
Rounding
Interval rule

Boundaries are rounded to whole bpm, and each zone gets its own non-overlapping range.

Zone Percent range Low (bpm) High (bpm) Purpose

Cara menghitung

FAQ

Apa perbedaan antara %HRmax dan Karvonen (HRR)?

%HRmax hanya memakai denyut jantung maksimum. Karvonen (HRR) juga memakai denyut jantung istirahat: target = HRrest + (HRmax - HRrest) x %. HRR bisa menempatkan Zona 2 sedikit lebih rendah bagi orang dengan HR istirahat rendah.

Bagaimana memperkirakan HRmax?

Jika Anda tidak memiliki tes laboratorium, gunakan rumus usia seperti 220 - usia atau 208 - 0.7*usia (Tanaka). Ini hanya perkiraan. Jika Anda memiliki HRmax terukur dari usaha berat, masukkan langsung.

Mengapa batas zona kadang terlihat berdekatan?

Semua batas dibulatkan ke bpm utuh. Setiap zona berakhir di batas berikutnya dikurangi satu agar tidak tumpang tindih, sehingga angka yang berdampingan bisa terlihat sangat dekat setelah pembulatan.

Apakah ini nasihat medis?

Tidak. Alat ini hanya untuk informasi. Jika Anda memiliki masalah jantung, sedang hamil, atau merasa tidak sehat, konsultasikan tenaga medis sebelum berlatih berdasarkan denyut jantung.

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