Calculator for Max Heart Rate

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Maximum Heart Rate Calculator

Your maximum heart rate is the highest number of times your heart can beat in one minute during strenuous physical activity. It's an important metric for understanding your cardiovascular fitness and setting appropriate training zones. A common and widely used formula to estimate maximum heart rate is the Tanaka formula, which is considered more accurate than older methods like the simple 220 minus age formula for a broader range of individuals.

The Tanaka formula is:

Maximum Heart Rate = 208 – (0.7 x Age)

This calculator will help you estimate your personal maximum heart rate based on your age.

function calculateMaxHeartRate() { var ageInput = document.getElementById("age"); var resultDiv = document.getElementById("result"); var age = parseFloat(ageInput.value); if (isNaN(age) || age 120) { resultDiv.innerHTML = "Please enter a valid age between 1 and 120."; return; } // Tanaka formula: Max HR = 208 – (0.7 * Age) var maxHeartRate = 208 – (0.7 * age); resultDiv.innerHTML = "Your estimated maximum heart rate is: " + maxHeartRate.toFixed(0) + " bpm (beats per minute)."; }

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