SARA-SI · YOUR FIT GUIDE

Find Your Perfect Bra Size

Discover a comfortable fit with our simple bra size calculator and measurement guide.

Bra Size Calculator

Enter your underbust and fullest-bust measurements to get an estimated starting size.

Measurement unit

Underbust measurement

Fullest-bust measurement

Your estimated starting size

This is an estimate. Please check your selected product's size chart before ordering.

How to Measure

Follow these simple steps for accurate results.

1. Underbust

Place the tape directly below your bust. Keep it level, snug and comfortable.

2. Fullest Bust

Measure around the fullest part of your bust without pulling the tape tightly.

Quick Tips

✓ Use a soft measuring tape.

✓ Stand straight and relax.

✓ Avoid compressing your bust.

Bra Size Chart

Use this general reference to find your band size.

Underbust (cm)	Band Size
63–67	30
68–72	32
73–77	34
78–82	36
83–87	38
88–92	40
93–97	42
98–102	44

This is a general reference. Actual sizing may vary by brand and style.

Bra Cup Visual Guide

Different cup letters represent different cup volumes relative to band size.

A Cup

B Cup

C Cup

D Cup

E Cup

F Cup

Frequently Asked Questions

What if my measurements fall between two sizes? +

Try both nearby sizes if possible. Choose the one that feels secure and comfortable, and check the brand's product-specific size chart.

Can I use the same size for all bra styles? +

Not always. Fit can vary with the design, fabric and brand. Check the size guide for the bra you want to buy.

Why does my bra feel tight or loose? +

The band, cup or straps may need adjustment. Recheck your measurements and try a nearby size if needed.

How often should I remeasure? +

Remeasure whenever your fit changes or your current bra no longer feels comfortable.

♡

The Right Fit
Makes All the Difference

Better comfort. More confidence.
Every day.

Still unsure?

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How to Measure Your Bra Size

Follow our simple visual guide to measure yourself comfortably and find your best starting size.

Measuring underbust circumference with a measuring tape

STEP 01

Measure Your Underbust

Place a soft measuring tape directly below your bust. Keep it level around your ribcage, snug but not too tight. Record the measurement in centimetres or inches.

Tip: Keep the tape straight across your back and avoid pulling it too tightly.

Measuring around the fullest part of the bust

STEP 02

Measure Your Fullest Bust

Wrap the tape around the fullest part of your bust. Keep it level across your back and ensure it does not compress your bust.

Tip: Stand naturally and breathe normally while taking your measurement.