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Karvonen HR Zones

Calculate Karvonen HR Zones instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

Karvonen HR Zones

Age
Resting HR
Zone 4 (80%)
164bpm
Z1: 125, Z2: 138, Z3: 151, Z5: 177Calculate Karvonen HR Zones instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.

More about: Karvonen HR Zones

What it calculates

The “Karvonen HR Zones” calculator computes Zone 4 (80%) in bpm from 2 parameters: age, resting hr.

A study aid and exam-prep helper.

Example calculation

With parameters Age = 30, Resting HR = 60 the result is 164 bpm (Z1: 125, Z2: 138, Z3: 151, Z5: 177).

How to use

  1. Enter the parameter values — every field above is adjustable with a slider.
  2. The result and related metrics are calculated automatically as you type.
  3. Use the additional metrics shown (if any) where needed.
  4. Copy the result or bookmark the page.

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