Bra Size Guides

H Cup Bras by Band Size (UK) – Find the Best Bras for Your Exact Band Size

This H cup bras by band size guide helps you find the best bras for your exact band size, with links to detailed pages covering fit, support and recommended styles for every H band size.

An H cup sits within the UK bra sizing system between GG and HH. However a 28H, 34H and 40H represent different cup volumes because cup size always changes with band measurement.

If you want to understand the size itself before choosing a band, see our H Cup Bras Guide or explore real-world measurements in our How Big Are H Cups explanation.

If you are unsure of your starting size, begin with the Bra Size Calculator. You can then confirm your fit using our Bra Fitting Advice and compare sizing across brands using the Bra Size Converter.

What Is an H Bra Size?

An H bra size is part of the UK bra sizing system and appears between GG and HH in the cup progression. Each step typically represents about a 1 inch increase between the band size and the fullest bust measurement.

In most UK size charts an H cup corresponds to roughly an 11 inch difference between the band measurement and the fullest part of the bust. Because cup volume increases with band size, a 30H, 34H and 40H all represent different volumes.

Understanding H Cup Size

In the UK bra sizing system, each cup size step represents roughly a one-inch increase between the band size and the fullest bust measurement. An H cup sits between GG and HH in this progression.

If you want to compare neighbouring sizes, you can explore our guides to GG cup bras by band size and HH cup bras by band size.

You may also find these related guides helpful:

Because cup size works together with band size, you can also use bra sister sizes to find equivalent sizes when adjusting the band while keeping a similar cup volume.

H cup sizes are available across a wide range of band sizes. For example, you can explore detailed guides for 32H bras, 34H bras and 36H bras.

Popular H Bra Sizes

Some H sizes appear frequently in UK fuller-bust brands and sit near the centre of the band range.

H Cup Bras by Band Size

Why Band-Specific H Guides Matter

Cup volume increases as band size increases. This means a 40H holds significantly more volume than a 30H, even though the cup letter is identical.

Smaller H bands often rely on firmer band tension and narrower wire structures, while larger H bands benefit from wider wings, reinforced frames and stronger fabric support. Reading guidance written specifically for your band size can significantly improve fit accuracy.

For example, a 32H bra combines an H cup with a smaller band measurement. A 34H bra sits near the centre of the H band range and is widely produced by fuller-bust brands, while a 36H bra holds slightly more overall cup volume.

This H cup bras by band size guide brings together all available sizes from 28 to 50, helping you compare H cup bras by band size and choose styles suited to your measurements and support needs.

H Cup Bra Size FAQs

What is an H bra size?

An H bra size sits between GG and HH in the UK sizing system and represents roughly an 11 inch difference between band and bust. You can also see real-world examples in our guide explaining how big H cups are.

Is H bigger than GG?

Yes. H comes directly after GG in the UK cup sequence.

What cup size comes after H?

The cup size after H in the UK bra sizing system is HH.

Does the same H cup have the same volume on every band?

No. A 30H holds less volume than a 38H even though the cup letter is the same.

For a broader explanation of how bra sizing systems developed, you may also find this bra size overview helpful alongside the guides on this site.

Browse your specific band size above to find structured, supportive H cup bras chosen for everyday stability and comfort.