Is a 40DD the same in every brand?

No - a 40DD isn't identical across brands, because brands use different sizing systems and cup depths. Here's how a standard US 40DD translates in the brands we track: ThirdLove 40DD, Wacoal 40DD, Panache 40DD, Freya 40DD, Elomi 40DD, Glamorise 40DD, b.tempt'd 40DD, Fantasie 40DD. SHEFIT, Kindred Bravely, ENELL size by their own chart instead of band/cup.

What are the sister sizes for 40DD?

40DD's sister sizes — same cup volume, different band — are 38DDD and 42D. Try a sister size if the band feels too tight or loose but the cup still fits.

40DD Bras

What is a 40DD in other brands?

651 bras tracked in 40DD · 8 brands · See all DD cup

Brands: Bravissimo, Elomi, Fantasie, Freya, Glamorise, Panache, Wacoal, b.tempt'd

Your 40DD across brands

A 40DD isn’t the same in every brand. Here’s how a standard US 40DD translates across the brands we track — and how each one runs.

Brand	How it runs	Your 40DD →
ThirdLove	cups run generous	40DD
Wacoal	true to size	40DD
Panache	true to size	40DD
Freya	band runs small	40DD

What is a 40DD in other brands? See all 30+ brands →

Sister sizes

38DDD 42D What are sister sizes?

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Your 40DD across brands

Inside Job™ Wire Free Bra: Lavender Sage

Inside Job™ Wire Free Bra: Sand

Inside Job™ Wire Free Bra: Roebuck

Vivid Attraction Underwire Bra: White

Vivid Attraction Underwire Bra: Black

Vivid Attraction Underwire Bra: Woodrose

Vivid Attraction Underwire Bra: Dark Purple

Back Appeal® Wire Free Bra: Black

Back Appeal® Wire Free Bra: Rose Dust

Vivid Attraction Underwire Bra: Soft Sky

Millie Bra - Deep Red

Dana Front Fastening Bra - Aqua

Millie Bra - Deep Green

Millie Bloom Bra - Red/Pink

Indie Bra - Pink

Esmae Bra - Forest Green

Indie Bra - Hot Pink

Millie Bloom Bra - White

Millie Bra - Hazelnut

Rebecca Essentials Spacer Molded Bra: Red

Rebecca Essentials Spacer Molded Bra: Natural Beige

Rebecca Essentials Spacer Molded Bra: Black

Rebecca Essentials Spacer Molded Bra: Blush

Lucie Stretch Plunge Bra: Wildcat

Lucie Stretch Plunge Bra: White

Lucie Stretch Plunge Bra: Pale Blush

Lucie Stretch Plunge Bra: Mocha

Lucie Stretch Plunge Bra: Mist

Lucie Stretch Plunge Bra: Black

Morgan Stretch Banded Bra: White

Morgan Stretch Banded Bra: Sahara

Morgan Stretch Banded Bra: Midnight

Morgan Stretch Banded Bra: Haute Red

Morgan Stretch Banded Bra: Black

Morgan Stretch Banded Bra: Toasted Almond

Morgan Stretch Banded Bra: Hot House

Morgan Stretch Banded Bra: Ebony

Morgan Stretch Banded Bra: Cameo Rose

Tiernie Stretch Plunge Bra: Sahara

Nerina Stretch Plunge Bra: Sahara

Nerina Stretch Plunge Bra: Black

Serene Full Cup Bra - Noir

Taking Sides Underwire Bra: Black

Taking Sides Underwire Bra: Roebuck

Taking Sides Underwire Bra: Belgian Block

Back Appeal® Underwire Bra: Dark Slate

Visual Effects Minimizer Bra: Sand

Visual Effects Minimizer Bra: Roebuck

Visual Effects Minimizer Bra: Black

Elevated Allure Front Close Underwire Bra: Black

Elevated Allure Front Close Underwire Bra: Roebuck

Full Bloom Underwire Bra: Black

Full Bloom Underwire Bra: Rose Dust

Full Bloom Underwire Bra: Belgian Block

Inside Job™ Underwire Bra: Black

Inside Job™ Underwire Bra: Lavender Sage

Inside Job™ Underwire Bra: Sand

Inside Job™ Underwire Bra: Roebuck

Elevated Allure Underwire Bra: Rose Dust

Elevated Allure Underwire Bra: Black