Maximum Heart Rate Calculator
Your maximum heart rate (MHR) is the highest number of times your heart can beat per minute during intense physical activity. It's an important metric for determining your target heart rate zones during exercise, which helps optimize training for cardiovascular health and fitness. A widely used and simple formula to estimate your MHR is the "220 minus age" formula. While this is a good starting point, it's important to remember that individual variations exist due to genetics, fitness level, and other factors. For a more personalized assessment, consult with a healthcare professional or a certified fitness trainer.
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.calculator-container {
font-family: sans-serif;
border: 1px solid #ccc;
padding: 20px;
border-radius: 8px;
max-width: 500px;
margin: 20px auto;
background-color: #f9f9f9;
}
.calculator-title {
text-align: center;
color: #333;
margin-bottom: 15px;
}
.calculator-description {
color: #555;
line-height: 1.6;
margin-bottom: 25px;
font-size: 0.95em;
text-align: justify;
}
.calculator-inputs {
margin-bottom: 20px;
}
.input-group {
margin-bottom: 15px;
}
.input-group label {
display: block;
margin-bottom: 8px;
font-weight: bold;
color: #444;
}
.input-group input[type="number"] {
width: calc(100% – 20px);
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1em;
}
.calculator-actions {
text-align: center;
margin-bottom: 25px;
}
.calculator-actions button {
background-color: #4CAF50;
color: white;
padding: 12px 25px;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 1.1em;
transition: background-color 0.3s ease;
}
.calculator-actions button:hover {
background-color: #45a049;
}
.calculator-result {
text-align: center;
border-top: 1px solid #eee;
padding-top: 20px;
}
.result-item {
background-color: #e7f7e8;
padding: 15px;
border-radius: 5px;
border: 1px solid #d0eac1;
}
.result-item h3 {
color: #3c763d;
margin-top: 0;
margin-bottom: 10px;
}
.result-value {
font-size: 1.8em;
font-weight: bold;
color: #3c763d;
}
.error {
color: #a94442;
font-weight: bold;
}