Peak HR (bpm)

HR after 1 min (bpm)

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General estimate for planning only — not medical advice. Consult a doctor about your specific situation.

Calculation details

Every figure above is calculated locally in your browser from the assumptions shown. No inputs are sent anywhere. See the methodology section below for how this tool works.

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Rating bands for heart rate recovery drop at one minute — A 24 bpm drop rates Good; under 12 bpm warrants a doctor's look.

Method & verification

How This Tool Works

fact-checked against our calculation methodology

Calculation Method

HR recovery = Peak HR - HR after 1 min

Site methodology

BoringToolsKit methodology and verification standard

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Assumptions to Verify

These tools provide general estimates for planning and education only.
They are not medical advice and not a substitute for a qualified healthcare professional.
Always consult your doctor or another healthcare provider about your specific situation.

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Worked example: a 24 bpm drop, step by step

Take a 38-year-old finishing a hard interval session. A chest strap shows 172 bpm at the moment she stops (peak) and 148 bpm exactly 60 seconds later (after-1-min). The calculator does one subtraction: 172 - 148 = 24 bpm drop. That falls in the 20-29 bpm band, so the rating is Good. It never averages, smooths, or estimates anything, so the output is only as good as the two readings you give it.

Notice what changes the answer without changing fitness. If she looks at her watch 15 seconds late, the reading might be 143, giving 172 - 143 = 29 bpm, still Good but much closer to Excellent (30+). A 10-second timing error swings the result by roughly 3-6 bpm in this example, because the fastest decay happens in the first 30 seconds. Same workout, same heart, same fitness level: the score moved. That is why the 1-minute mark should be timed from a stopwatch or the watch itself, not estimated, and why a single reading is a data point rather than a diagnosis.

Where the single-number rule breaks down

The <12 bpm threshold comes from studies on mostly healthy, medicated-naive adults, and several situations push the number down without meaning poor fitness. Beta-blockers blunt peak heart rate by 20-30 bpm and slow the descent; one cardiology cohort found recovery values running about 5-8 bpm lower in medicated patients at the same treadmill workload. Hot gyms and dehydration also compress the drop: training in 30 C heat can hold heart rate 10-15 bpm higher at any effort, and the first minute after stopping stays elevated with it.

Practical fixes that cost nothing: measure after the same type of session each time (a steady 20-minute run beats a random HIIT class for comparability), keep room temperature roughly consistent, and track the trend across 4-6 sessions rather than reacting to one number. A drop that slides from 24 to 21 to 18 over three weeks at unchanged training load is a more useful signal than any single 12-vs-13 bpm line. If recovery stays under 12 bpm across multiple rested, cool-condition sessions, that pattern warrants a conversation with a doctor, not panic.