Bra Size Calculator
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
background-color: #f8f9fa;
color: #333;
line-height: 1.6;
margin: 0;
padding: 20px;
}
.calculator-container {
max-width: 800px;
margin: 20px auto;
background-color: #ffffff;
padding: 30px;
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
display: flex;
flex-direction: column;
gap: 30px;
}
h1, h2 {
color: #004a99;
text-align: center;
margin-bottom: 10px;
}
.input-section, .result-section {
border: 1px solid #dee2e6;
padding: 20px;
border-radius: 5px;
background-color: #e9ecef;
}
.input-group {
margin-bottom: 15px;
display: flex;
flex-direction: column;
gap: 5px;
}
.input-group label {
font-weight: bold;
color: #004a99;
}
.input-group input[type="number"] {
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1rem;
width: calc(100% – 22px); /* Adjust for padding */
}
.btn-calculate {
background-color: #28a745;
color: white;
border: none;
padding: 12px 20px;
border-radius: 5px;
font-size: 1.1rem;
cursor: pointer;
transition: background-color 0.3s ease;
width: 100%;
display: block; /* Ensure it takes full width */
}
.btn-calculate:hover {
background-color: #218838;
}
#result {
background-color: #d4edda;
color: #155724;
padding: 20px;
border: 1px solid #c3e6cb;
border-radius: 5px;
text-align: center;
font-size: 1.8rem;
font-weight: bold;
margin-top: 20px;
}
.article-section {
margin-top: 40px;
padding: 25px;
background-color: #ffffff;
border-radius: 8px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
.article-section h2 {
margin-bottom: 15px;
text-align: left;
}
.article-section p, .article-section ul {
margin-bottom: 15px;
}
.article-section li {
margin-bottom: 8px;
}
@media (min-width: 768px) {
.calculator-container {
flex-direction: row;
justify-content: space-between;
}
.input-section {
width: 48%;
}
.result-section {
width: 48%;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
.btn-calculate {
width: auto; /* Allow button to size naturally */
align-self: center;
}
}
Your Estimated Bra Size
—
Understanding Bra Sizing
Finding the right bra size is crucial for comfort, support, and overall well-being. A well-fitting bra can prevent back pain, shoulder strain, and improve posture. However, bra sizing can be notoriously confusing, with variations between brands and styles. This calculator provides an estimation based on standard measurement methods, but trying on bras is always recommended.
How to Measure for a Bra
Accurate measurements are the first step to finding your correct bra size. You'll typically need two measurements:
-
Band Measurement: This is the measurement around your ribcage, directly under your bust. The tape measure should be snug and level all the way around. For this calculator, the band measurement is taken in centimeters (cm).
-
Cup Measurement: This is the measurement around the fullest part of your bust. The tape measure should be loose enough to not compress your breast tissue, and it should be level. Again, this measurement is taken in centimeters (cm).
The Calculation Logic
The standard method for calculating bra size involves determining the band size and the cup size.
-
Band Size: This calculator uses your direct band measurement in cm. In many systems, this measurement directly corresponds to the band number (e.g., 75cm might correspond to a 34 or 36 band size depending on the sizing system, but for simplicity, we use the cm measurement as input).
-
Cup Size: The cup size is determined by the difference between your cup measurement and your band measurement. A common calculation is:
Cup Difference = Cup Measurement (cm) – Band Measurement (cm)
The resulting difference in centimeters is then typically mapped to a cup letter. While sizing systems vary, a general guideline is:
- 0-1 cm: AA
- 1-2 cm: A
- 2-3 cm: B
- 3-4 cm: C
- 4-5 cm: D
- 5-6 cm: DD (or E)
- 6-7 cm: F
- And so on, with each additional centimeter typically corresponding to another cup size increase.
This calculator approximates this difference and assigns a standard cup letter.
Example Calculation:
If your Band Measurement is 75 cm and your Cup Measurement is 92 cm:
Cup Difference = 92 cm – 75 cm = 17 cm
This calculation is a simplified representation. In practice, bra sizing charts are used which often account for the band measurement itself influencing the cup size interpretation. For instance, a 75cm band with a certain difference might yield a different cup than an 80cm band with the same difference.
This calculator aims for a quick estimate. Always try on bras to ensure the best fit.
Why Use a Bra Size Calculator?
This calculator serves as a starting point for determining your bra size. It can be particularly helpful for:
- Individuals who are unsure of their bra size.
- People experiencing discomfort or poor fit with their current bras.
- Those shopping online and wanting a preliminary size estimate.
- Understanding how measurements relate to standard cup sizes.
Remember, bra sizing can be influenced by factors like breast shape, bra construction, and brand variations. This tool provides a mathematical estimate, and personal fit is paramount.
function calculateBraSize() {
var bandInput = document.getElementById("bandSize");
var cupInput = document.getElementById("cupMeasurement");
var resultDiv = document.getElementById("result");
var bandSize = parseFloat(bandInput.value);
var cupMeasurement = parseFloat(cupInput.value);
if (isNaN(bandSize) || bandSize <= 0) {
resultDiv.innerHTML = "Please enter a valid band measurement.";
return;
}
if (isNaN(cupMeasurement) || cupMeasurement <= 0) {
resultDiv.innerHTML = "Please enter a valid cup measurement.";
return;
}
if (cupMeasurement <= bandSize) {
resultDiv.innerHTML = "Cup measurement must be larger than band measurement.";
return;
}
var cupDifference = cupMeasurement – bandSize;
var cupLetter = '';
// Simplified cup size mapping based on difference in cm
// This is a general approximation and may vary by brand/system
if (cupDifference = 1 && cupDifference = 2 && cupDifference = 3 && cupDifference = 4 && cupDifference = 5 && cupDifference = 6 && cupDifference = 7 && cupDifference = 8 && cupDifference = 9 && cupDifference = 10 && cupDifference = 11 && cupDifference < 12) {
cupLetter = 'K';
} else {
cupLetter = 'Larger'; // For significant differences beyond typical charts
}
resultDiv.innerHTML = bandSize + '' + cupLetter;
}