Perfect Fit Finder — Olyinka Lingerie
Olyinka Lingerie
Perfect Fit Finder
A guided journey to your ideal lingerie size — bra and briefs, across every sizing system.
Find your perfect fit.

This takes just a few minutes. We'll guide you through each measurement and calculate your ideal bra and brief sizes across every sizing system — yours to keep.

Before we begin, please have ready:

  • 1 A flexible measuring tape
  • 2 A soft, non-padded bra (or none at all)
  • 3 A few quiet minutes, just for you
Step 01 of 11
How shall we address you?

We'd love to make this feel personal.

Step 02 of 11
Which units do you prefer?

We'll ask for your measurements shortly. Choose whichever feels most natural.

Step 03 of 11
Which sizing system do you usually use?

We'll show all conversions in your results — this helps us highlight the one most relevant to you.

Step 04 of 11 — Band Size
Your underbust measurement

Measure around your ribcage, directly beneath your bust. Keep the tape level and comfortably snug — not tight.

Breathe out naturally before measuring. The tape should sit flat against your skin without compressing. Keep it level all the way around.

How to measure underbust
Please enter a valid measurement.
Step 05 of 11 — Cup Size
Your bust measurement

Measure around the fullest part of your bust, keeping the tape parallel to the floor. Arms relaxed at your sides.

Wear a non-padded bra or none at all for the most accurate result. The tape should be firm but never pulling or digging in.

How to measure bust
Please enter a valid measurement.
Step 06 of 11 — Brief Size
How would you describe your body shape?

This helps us recommend the most flattering brief silhouettes for you.

Step 07 of 11 — Brief Size
Your waist measurement

Measure around your natural waistline — the narrowest part of your torso, usually just above your belly button.

Stand tall and breathe out naturally. Keep the tape parallel to the floor and don't pull it tight.

How to measure waist
Please enter a valid measurement.
Step 08 of 11 — Brief Size
Your hip measurement

Measure around the fullest part of your hips and bottom, keeping the tape parallel to the floor.

Stand with your feet together and measure the widest point — usually around 7–9 inches below your natural waist.

How to measure hips
Please enter a valid measurement.
Step 09 of 11
How do you like your bras to feel?
Step 10 of 11
What matters most to you?

Select everything that resonates. There are no wrong answers here.

Step 11 of 11
Where shall we send your results?

We'll send your complete size profile and a curated selection just for you — plus a little gift from us. You can also skip this and see your results now.

Please enter a valid email address.
Your Perfect Fit
Your ideal size

Based on your measurements, here is your complete size profile.

34C
Your recommended UK size
UK
34C
EU
75C
US
34C
French
90C
Aus/NZ
12C
Japan
75C
UK / AU
EU
US

Every body is beautifully different. These sizes are a wonderful starting point — a bespoke fitting consultation with Olyinka will refine them further, just for you.