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Cycling Heart Rate Zone Calculator

Jerry O
Written by Jerry O
Last updated on May 29th, 2026

Use this cycling heart rate zone calculator to estimate training zones from max heart rate, heart-rate reserve, or cycling threshold heart rate.

Icebike gap tool

Cycling Heart Rate Zone Calculator

Estimate cycling heart-rate training zones from max heart rate, resting heart rate, or lactate-threshold heart rate.

How to use this calculator

Enter the values that match your bike, body, route, training data, or shipping box. Change one input at a time if you want to see which detail moves the result most.

What the result means

Zones are training estimates. Medication, heat, dehydration, fatigue, cardiac history, and inaccurate max or threshold values can change safe targets.

This calculator is for practical planning and comparison. It does not replace a professional bike fit, mechanic inspection, medical guidance, carrier quote, manufacturer specification, or local safety judgment.

Should you have any questions or require further clarification on the topic, please feel free to connect with our expert author Jerry O by leaving a comment below. We value your engagement and are here to assist you.

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Jerry O

Jerry O

Jerry is a competitive professional cyclist with extensive experience in both road and mountain biking. He has competed at a national level, winning multiple races and earning a reputation as a top-star athlete in his local cycling community. In addition to his success on the race course, Jerry is also an experienced bike mechanic, with a deep understanding of the mechanics and technology of bikes.

Jerry's expertise in the cycling world is reflected in his writing for IceBike.org, where he shares his knowledge and experience with fellow cyclists of all levels. With a focus on providing accurate and reliable information, his articles cover a wide range of topics, from training, bike and gear reviews and maintenance tips.

As an active member of the different cycling community, Jerry is committed to promoting safe and responsible biking practices and helping others achieve their goals in the sport. With his wealth of experience and expertise, he is a valuable contributor to the IceBike.org team and an important voice in the cycling community.

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