Finding the right bra size can be a real game-changer for your comfort and confidence. But let’s be honest. Figuring out the perfect size can be a bit confusing. Our Bra Size Calculator simplifies the process by calculating your bra size based on two main measurements: your band size and your bust size. No more guesswork; get your perfect fit today!

#calculator { border: 2px solid #FF69B4; border-radius: 10px; padding: 20px; width: 350px; margin: auto; box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); } button { background-color: #FF69B4; color: white; padding: 10px 20px; border: none; cursor: pointer; } #clear { background-color: #f44336; /* Different color for Clear button */ } button:hover { opacity: 0.8; } function calculateBraSize() { const location = document.getElementById(‘location’).value; const unit = document.getElementById(‘unit’).value; let bandSize = parseFloat(document.getElementById(‘bandSize’).value); let bustSize = parseFloat(document.getElementById(‘bustSize’).value); if (unit === “cm”) { bandSize = bandSize / 2.54; bustSize = bustSize / 2.54; } const cupSize = bustSize – bandSize; let result; if (cupSize <= 1) { result = "A"; } else if (cupSize <= 2) { result = "B"; } else if (cupSize <= 3) { result = "C"; } else if (cupSize <= 4) { result = "D"; } else { result = "DD+"; } if (location === "UK") { result += " (UK)"; } else if (location === "EU") { result = Math.round(bandSize * 2.54) + result + " (EU)"; } else if (location === "AU") { result += " (AU/NZ)"; } else if (location === "FR") { result = Math.round(bandSize * 2.54) + 15 + result + " (FR/BE/ES)"; } else { result += " (US/CA)"; } document.getElementById('result').innerHTML = "Your calculated bra size is " + Math.round(bandSize) + result; } function clearFields() { // Function to clear the fields and result document.getElementById('bandSize').value = ""; document.getElementById('bustSize').value = ""; document.getElementById('result').innerHTML = ""; }

Why is the Correct Bra Size Important?

Wearing the wrong bra size can cause a whole bunch of issues. It can lead to discomfort, poor posture, and even health issues like back pain. On top of that, it can make your clothes look less flattering. So, getting the right size is not just about comfort; it’s about feeling and looking your best.

How to Measure Your Bra Size?

Step 1: Measure Your Band Size

Wrap a measuring tape around your ribcage, right under your bust. Make sure it’s snug but not too tight. This is your band size.

Step 2: Measure Your Bust Size

Next, measure around the fullest part of your bust. Make sure the measuring tape is level all the way around.

Step 3: Calculate Your Cup Size

Subtract your band size from your bust size. The difference will help you find your cup size based on standard sizing charts.

The Bra Size Table

Here’s a handy table to guide you through the various bra sizes.

Band Size (in inches)	Cup Size (A)	Cup Size (B)	Cup Size (C)	Cup Size (D)	Cup Size (DD)
28	28A	28B	28C	28D	28DD
30	30A	30B	30C	30D	30DD
32	32A	32B	32C	32D	32DD
34	34A	34B	34C	34D	34DD
36	36A	36B	36C	36D	36DD
38	38A	38B	38C	38D	38DD
40	40A	40B	40C	40D	40DD
42	42A	42B	42C	42D	42DD

What Changes with Location?

It’s not just the scenery that changes when you hop from one country to another. Bra sizes can change! For instance, a size “34C” in the United States might be a “75C” in Europe. So, it’s super important to know how to convert sizes when you’re shopping in a different country.

The Global Bra Size Table

Here’s a table that will show you how bra sizes convert in different parts of the world. Keep this handy for the next time you’re shopping abroad or even online from a foreign brand.

US Size	UK Size	Europe Size	Australia Size	Japan Size
28A	28A	60A	6A	60A
30B	30B	65B	8B	65B
32C	32C	70C	10C	70C
34D	34D	75D	12D	75D
36DD	36DD	80E	14DD	80E
38DDD	38E	85F	16E	85F
40G	40F	90G	18F	90G
42H	42FF	95H	20FF	95H

Further Reading: How Often Should You Wash Your Bra?