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ZonePulse
Simple max-HR rule with Z1–Z5 zones.
Different heart-rate zones target different physiological adaptations — low zones build aerobic base and fat-burning efficiency, high zones build speed and anaerobic capacity, which is why structured training plans specify a target zone rather than just 'go hard.'
The 220-minus-age formula is a fast, widely used approximation, but it can be off by 10-15 beats for some individuals — a real max-HR field test gives a more personalized number if you're training seriously.
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OpenMax HR (bpm)
190
What you entered
Estimated max heart rate
220 − 30= 190 bpmEach zone is a % range of max HR (Z1 50–60% … Z5 90–100%)
max HR × zone %= Z1: 95-114; Z2: 114-133; Z3: 133-152; Z4: 152-171; Z5: 171-190Result
Max HR (bpm): 190
At age 30, your estimated max heart rate is 190 bpm — use the zone ranges above to guide training intensity.