How to find your bra size at home? (step by step)

The wrong size is the most common cause of discomfort when wearing a bra. Many women wonder how to find their bra size at home without a professional bra fitting. The good news? You can do it yourself - all you need is a tape measure and a few minutes.

In this guide, we show you how to measure your bust and underbust, how to calculate your bra size and how to check whether your bra fits well.

Step 1: How to measure your underbust?

This is the most important stage. The band provides 80% of the bust support.

1. Stand up straight and relax your shoulders.
2. Wrap the tape measure snugly under your bust - as you breathe out.
3. Make sure the tape is level.
4. Note down the result in centimetres.

If you are wondering how to measure your underbust correctly, remember: the measurement should be snug, but not uncomfortable.

Step 2: How to measure your bust?

Now it is time to measure around your bust - this determines your cup size.

1. Put on a thin, non-padded bra or measure without one.
2. Place the tape measure around the fullest part of your bust.
3. Don't pull it tight - the tape should rest gently against your body.
4. Note down the result.

It is the difference between your bust and underbust measurements that will help you determine your cup size.

Step 3: How to calculate your bra size?

To check your bra size at home, subtract your underbust measurement from your bust measurement.

Example:

• Underbust: 75 cm
• Bust: 89 cm
• Difference: 14 cm

Each difference corresponds to a specific cup (e.g. 12-14 cm is usually a B cup). Then you choose the band - e.g. 75B.

Remember that size charts can vary from brand to brand, so it is always worth checking the specific sizing.

How to check whether your bra fits well?

Even if you already know your size, it is worth checking the fit once you have the bra on.

A well-fitting bra:

• has a stable band that doesn't ride up,
• doesn't let your breasts spill out of the cups,
• doesn't gape at the centre gore,
• has straps that don't dig into your shoulders.

If you feel pressure or the cup wrinkles, it is worth trying on a different size.

The most common mistakes when choosing a bra size

• Choosing a band that is too loose.
• Ignoring the difference between cups.
• Assuming ‘I always wear 75B’ without measuring again.
• Choosing a size based on looks alone.

Your size can change with your weight, hormonal cycle or lifestyle - which is why it is worth measuring yourself from time to time.

Can you find your bra size without leaving home?

Yes - as long as you take your measurements carefully and pay attention to the construction of the style. Soft non-wired bras, bralettes and balconettes can sit slightly differently, so it is worth checking the fit visually as well.

Summary - how to find your bra size at home?

Two measurements are key: underbust and bust. Based on them, you can determine your cup size and choose the right band size.

A well-fitting bra improves comfort, posture and the look of your figure. If you have any doubts, it is worth consulting the brand or choosing a style that can be exchanged.

Remember - the perfect size is the foundation of comfort and confidence.