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Measure your underbust
Wrap the tape directly beneath your bust. Keep it level and comfortably snug, then record the number.
Find your Femyn fit
Comfort starts with the right size.
Take two simple measurements and get an estimated bra size plus your recommended Femyn fit.
For the most accurate result, measure while wearing an unpadded bra.
Two measurements. One better fit.
How to measure yourself
Use a soft measuring tape and stand naturally. Keep the tape level without pulling it too tight.
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Measure your full bust
Measure around the fullest part of your bust. Keep the tape level and relaxed without compressing your breasts.
For a reliable result: measure over bare skin or an unpadded bra. If possible, ask someone to check that the tape remains level across your back.
Femyn fit calculator
Find your estimated bra size
Enter your snug underbust and full-bust measurements. We’ll estimate your standard bra size and corresponding Femyn fit.
Find your Femyn conversion
Use this quick band-size conversion as a starting point. Product-specific fit notes remain the final guide.
Bra band 30
S
Bra band 32, 34
M
Bra band 36, 38
L
Bra band 40, 42
XL
Bra band 44, 46
2XL
Fit with confidence
A little fit guidance goes a long way
Use your calculated size as a starting point, then choose the feel you prefer.
For a snug fit
Choose your calculated size when you prefer secure support and a close-to-body feel.
Between two sizes?
Choose the larger size for easier wear, softer movement and more relaxed comfort.
Check the product chart
Fabric stretch and construction vary, so the size chart on each product page remains the final guide.
Still unsure? Let us help.
Send your measurements to Femyn on WhatsApp for personal sizing guidance.
Sizing Queries
What if I am between two sizes?
What if I am between two sizes?
Choose the larger size for a softer everyday fit. Choose the smaller size only when the product is highly stretchy and you prefer firmer support.
Is the calculator result exact?
Is the calculator result exact?
It is a reliable starting estimate, not a fitting diagnosis. Breast shape, fabric stretch and product construction can affect the final fit.
Which chart should I follow when a product has its own guide?
Which chart should I follow when a product has its own guide?
Always use the product-specific chart as the final reference. It reflects that item’s stretch, cup construction and intended fit.
How often should I measure myself?
How often should I measure myself?
Measure again every six to twelve months, and after notable weight, pregnancy or hormonal changes.