BRA SIZE GUIDE

This guide will walk you through how to calculate your bra size using a bra size calculator in inches or centimetres.

Follow these steps to learn how to measure your bra size at home using just a soft measuring tape

Preparation for Bra Measurement

Before determining your bra size, gather the following items for accurate results.

A soft measuring tape is a must, but having a mirror, a notepad to jot down measurements, and wearing a non-padded bra or snug tank top can make the process easier and more precise.

  • Measuring Tape

    Use a soft, flexible measuring tape.

  • Measurement Unit

    Choose inches or centimetres.

  • What to Wear

    Wear a non-padded bra or no bra.

  • Mirror (Optional)

    To your measuring tape is level.

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Things to Consider Before Determining Bra Size

  • What to Wear: For the best results, wear a non-padded bra or a snug-fitting tank top. Avoid bulky or padded clothing.
  • When to Measure: Measure when your breasts are their most natural state, ideally a few days after your menstrual cycle ends to account for any size fluctuation.
  • Where to Measure: Find a comfortable, private space with a mirror. This helps ensure the measuring tape is level and correctly positioned.
  • Setting Up the Environment: Ensure the room is well-lit and you have a flat surface to stand on. Keep a notepad handy to jot down your measurements.

Step 1: Measure Your Band Size

To calculate bra size, wrap the measuring tape snugly around your ribcage, directly under your bust. Make sure the tape is level and straight across your body.

Tip: If the measurement falls between two numbers, round it to the nearest whole number.

Step 2: Measure Your Bust Size

Wrap the measuring tape around the fullest part of your bust. Ensure the tape is parallel to the ground and is not too tight or too loose.

Tip: Round the measurement to the nearest whole number if it falls between two values.

Step 3: Calculate Your Bra Size

Now, subtract your band size (Step 1) from your bust size (Step 2) to find the difference. Each inch of difference corresponds to a specific cup size:

For example, if your band size is 34 inches and your bust size is 36 inches, the difference is 2 inches, making your bra a B cup size. Your full bra size would be 34B.

  • 1 inch difference = A cup
  • 2 inches difference = B cup
  • 3 inches difference = C cup, and so on.

Use our bra measurement chart below to find the corresponding size in different regions: