This calculator helps you determine the mortality rate for a specific population over a given period. The mortality rate is a measure of the number of deaths in a particular population, scaled to the size of that population, over a specified time period. It is commonly expressed per 1,000, 10,000, or 100,000 individuals.
.mortality-calculator {
font-family: sans-serif;
max-width: 500px;
margin: 20px auto;
padding: 20px;
border: 1px solid #ccc;
border-radius: 8px;
box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}
.mortality-calculator h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.mortality-calculator p {
margin-bottom: 25px;
line-height: 1.5;
color: #555;
}
.inputs {
margin-bottom: 20px;
}
.form-group {
margin-bottom: 15px;
display: flex;
align-items: center;
justify-content: space-between;
}
.form-group label {
flex-basis: 45%;
font-weight: bold;
color: #444;
}
.form-group input[type="number"] {
flex-basis: 50%;
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1rem;
}
.mortality-calculator button {
display: block;
width: 100%;
padding: 12px 20px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
font-size: 1.1rem;
cursor: pointer;
transition: background-color 0.3s ease;
}
.mortality-calculator button:hover {
background-color: #0056b3;
}
.result {
margin-top: 25px;
padding: 15px;
background-color: #e9ecef;
border: 1px solid #dee2e6;
border-radius: 4px;
text-align: center;
font-size: 1.2rem;
color: #333;
min-height: 50px;
display: flex;
align-items: center;
justify-content: center;
}
function calculateMortalityRate() {
var totalPopulation = parseFloat(document.getElementById("totalPopulation").value);
var numberOfDeaths = parseFloat(document.getElementById("numberOfDeaths").value);
var timePeriodDays = parseFloat(document.getElementById("timePeriodDays").value);
var scaleFactor = parseFloat(document.getElementById("scaleFactor").value);
var resultElement = document.getElementById("result");
resultElement.innerHTML = ""; // Clear previous results
if (isNaN(totalPopulation) || isNaN(numberOfDeaths) || isNaN(timePeriodDays) || isNaN(scaleFactor)) {
resultElement.innerHTML = "Please enter valid numbers for all fields.";
return;
}
if (totalPopulation <= 0) {
resultElement.innerHTML = "Total population must be greater than zero.";
return;
}
if (numberOfDeaths < 0) {
resultElement.innerHTML = "Number of deaths cannot be negative.";
return;
}
if (timePeriodDays <= 0) {
resultElement.innerHTML = "Time period must be greater than zero days.";
return;
}
if (scaleFactor <= 0) {
resultElement.innerHTML = "Scale factor must be greater than zero.";
return;
}
// Formula for mortality rate: (Number of Deaths / Total Population) * (Number of Days in Year / Time Period in Days) * Scale Factor
// We adjust by the time period to get a rate per year, then scale it.
var mortalityRate = (numberOfDeaths / totalPopulation) * (365 / timePeriodDays) * scaleFactor;
resultElement.innerHTML = "Mortality Rate: " + mortalityRate.toFixed(2) + " per " + scaleFactor.toLocaleString() + " individuals per year";
}