Calculate Alcohol Metabolism Rate
.alcohol-metabolism-calculator {
font-family: sans-serif;
max-width: 700px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ddd;
border-radius: 8px;
background-color: #f9f9f9;
}
.alcohol-metabolism-calculator h2 {
text-align: center;
color: #333;
margin-bottom: 20px;
}
.alcohol-metabolism-calculator .inputs {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 15px;
margin-bottom: 20px;
}
.alcohol-metabolism-calculator .form-group {
display: flex;
flex-direction: column;
}
.alcohol-metabolism-calculator label {
margin-bottom: 5px;
font-weight: bold;
color: #555;
}
.alcohol-metabolism-calculator input[type="number"],
.alcohol-metabolism-calculator select {
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1rem;
}
.alcohol-metabolism-calculator button {
grid-column: 1 / -1;
padding: 12px 20px;
background-color: #007bff;
color: white;
border: none;
border-radius: 5px;
font-size: 1.1rem;
cursor: pointer;
transition: background-color 0.3s ease;
}
.alcohol-metabolism-calculator button:hover {
background-color: #0056b3;
}
.alcohol-metabolism-calculator .results {
margin-top: 20px;
padding: 15px;
background-color: #e9ecef;
border: 1px solid #ced4da;
border-radius: 5px;
font-size: 1.1rem;
text-align: center;
color: #333;
}
.alcohol-metabolism-calculator .explanation {
margin-top: 30px;
border-top: 1px solid #eee;
padding-top: 20px;
color: #666;
line-height: 1.6;
}
.alcohol-metabolism-calculator .explanation h3,
.alcohol-metabolism-calculator .explanation h4 {
color: #444;
margin-bottom: 10px;
}
.alcohol-metabolism-calculator .explanation ul {
list-style: disc;
margin-left: 20px;
}
function calculateMetabolism() {
var weightKg = document.getElementById("weightKg").value;
var gender = document.getElementById("gender").value;
var drinksConsumed = document.getElementById("drinksConsumed").value;
var timeElapsedHours = document.getElementById("timeElapsedHours").value;
var resultDiv = document.getElementById("result");
// Validate inputs
if (weightKg === "" || drinksConsumed === "" || timeElapsedHours === "") {
resultDiv.innerHTML = "Please fill in all required fields.";
return;
}
var weight = parseFloat(weightKg);
var drinks = parseFloat(drinksConsumed);
var time = parseFloat(timeElapsedHours);
if (isNaN(weight) || weight <= 0 || isNaN(drinks) || drinks < 0 || isNaN(time) || time < 0) {
resultDiv.innerHTML = "Please enter valid positive numbers for weight, drinks, and time.";
return;
}
// Using a simplified Widmark-like formula approach for estimation of BAC,
// and then inferring metabolism rate. A true metabolism rate is complex.
// This estimation focuses on how much alcohol is likely still in the system.
// Approximate grams of alcohol per standard drink
var gramsPerDrink = 14;
var totalAlcoholGrams = drinks * gramsPerDrink;
// Alcohol distribution ratio (approximate, varies by sex and body composition)
var distributionRatio;
if (gender === "male") {
distributionRatio = 0.68; // ~68% of body weight is water for males
} else {
distributionRatio = 0.55; // ~55% of body water for females
}
var bodyWaterWeightGrams = weight * distributionRatio * 1000; // Convert kg to grams for consistency
var initialBAC = (totalAlcoholGrams / bodyWaterWeightGrams) * 100; // BAC in g/100ml (approximate)
// Alcohol elimination rate (average, approx. 0.015% BAC per hour)
var eliminationRatePerGram = 0.00015; // 0.015% per hour, expressed as g/100ml per hour
// Alcohol remaining in the system at time 't'
// This is a simplification. Alcohol is not eliminated linearly when considering BAC,
// but for a general idea of "how much is processed", we can estimate.
// A more accurate model would consider the rate of alcohol disappearance.
// Let's reframe to estimate the amount of alcohol *metabolized* over time.
// The liver processes roughly 7-10 grams of alcohol per hour.
// We can estimate how much alcohol would be processed in the given time.
var avgMetabolismGramsPerHour = 8; // Average grams of alcohol metabolized per hour
var alcoholMetabolized = Math.min(totalAlcoholGrams, time * avgMetabolismGramsPerHour);
// Amount of alcohol still in the body (grams)
var alcoholRemainingGrams = totalAlcoholGrams – alcoholMetabolized;
if (alcoholRemainingGrams < 0) alcoholRemainingGrams = 0;
// Estimated BAC at current time (simplified)
var currentBAC = (alcoholRemainingGrams / bodyWaterWeightGrams) * 100;
if (currentBAC < 0) currentBAC = 0;
// Display results
resultDiv.innerHTML =
"Estimated Alcohol Metabolized: " + alcoholMetabolized.toFixed(2) + " grams" +
"Estimated Alcohol Remaining in System: " + alcoholRemainingGrams.toFixed(2) + " grams" +
"Estimated Blood Alcohol Content (BAC) Now: " + currentBAC.toFixed(3) + "%" +
"Note: This is a simplified estimation. Individual metabolism varies.";
}