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Heart Rate Zones — Z1 to Z5 in BPM (Max HR + Karvonen)

Train in the right zone: max HR and five exact zone ranges from your age and resting HR — in BPM.

Quick answer: Free heart-rate zone calculator: Tanaka max HR, resting-HR Karvonen option, all 5 training zones in BPM.

How to use

  1. Enter your age.
  2. Add resting HR if you know it (morning pulse).
  3. Read max HR and the five zones.

About this tool

Zone training works only if your zones are right. This tool computes max HR (Tanaka formula: 208 minus 0.7 times age — more accurate than the old 220-age), refines with your measured resting HR via the Karvonen method, and lays out Z1 to Z5.

FAQ

Which max-HR formula?
Tanaka (208 - 0.7 x age) fits real populations better than 220-age.
Why resting HR?
Karvonen zones track your working range — more personal than percent-of-max alone.
Zone 2?
Easy aerobic base — full-sentence talk; see its BPM range here.
Watch vs this?
Watches estimate; this computes from your inputs.
Medication?
Beta-blockers change HR — seek medical guidance; this is general info.
Update?
Resting HR drops with fitness — re-enter monthly.

Questions people ask about Heart Rate Zone Calculator

Collected from live search results on 31 Aug 2026 (search-engine "people also ask" boxes plus the questions published on ranking pages).

what heart rate zone calculator
The Toolfyra Heart Rate Zone Calculator runs entirely in your browser: open it, enter your input and the result appears instantly. No sign-up, no file upload, no watermark, and it works on phones as well as desktop.
how to determine heart rate zones calculator
The Toolfyra Heart Rate Zone Calculator runs entirely in your browser: open it, enter your input and the result appears instantly. No sign-up, no file upload, no watermark, and it works on phones as well as desktop.
how to calculate heart rate zone calculator
The Toolfyra Heart Rate Zone Calculator runs entirely in your browser: open it, enter your input and the result appears instantly. No sign-up, no file upload, no watermark, and it works on phones as well as desktop.
how is the target heart rate zone calculator
The Toolfyra Heart Rate Zone Calculator runs entirely in your browser: open it, enter your input and the result appears instantly. No sign-up, no file upload, no watermark, and it works on phones as well as desktop.
which heart rate zone calculation is best
The Toolfyra Heart Rate Zone Calculator runs entirely in your browser: open it, enter your input and the result appears instantly. No sign-up, no file upload, no watermark, and it works on phones as well as desktop.
which heart rate zone calculation is best garmin
The Toolfyra Heart Rate Zone Calculator runs entirely in your browser: open it, enter your input and the result appears instantly. No sign-up, no file upload, no watermark, and it works on phones as well as desktop.

People also searched

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