Soutien-gorge posé sur une pile de linge.

How to Increase a Bra Cup Size: 5 Tips

Written by: Laetitia Lanteri

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Published on

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Last updated on

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Time to read 7 min

Have you ever felt that slight discomfort when your favorite bra no longer provides the perfect fit? Don't worry, it's a common problem. Fortunately, there are tips to enlarge a cup of a bra and regain that desired comfort. Because feeling good in your clothes is essential, we will explore simple and effective solutions to adjust your lingerie to your silhouette!

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How to enlarge a cup of a bra?

To enlarge a cup of a bra, there are several simple tips. Sometimes, it is enough to remove the padding to increase the volume of the cup. If the padding is not removable, you will need to make a small incision to remove it and resew the lining of the cup. This small surgical intervention on lingerie will leave a small invisible scar when the bra is worn! Sometimes, the cup size is not actually the issue, and it will be more useful to make a bra extender

Bra with cups that are in the process of

What are the steps to enlarge a cup?

If you are ready to get started, here are the steps to follow to enlarge the cup of your bra:

  1. Measure your bust: Take your measurements to determine how much you need to adjust a cup.
  2. Prepare the pattern: If you are sewing your own lingerie, enlarge the cup pattern and adjust the other pieces accordingly.
  3. Sew the new pieces: Cut the fabric according to the new pattern and carefully assemble the pieces.
  4. Assemble the bra: Integrate the new cup with the rest of the lingerie while ensuring to maintain the shape and support.
  5. Check the fit: Try on the bra to ensure that the top of the cup and the bottom of the cup fit perfectly.

How to choose the right bra size?

To choose the right bra size, it is essential to know your exact measurements. Start by measuring your bust and underbust. These measurements will help you consult a size chart, particularly in French sizes, to determine the correct size. If you have a large bust, it is even more important to find a well-fitted bra that provides the necessary support. At Les Petits Imprimés, we provide tools to help you accurately calculate your size.

Bra size correspondence guide


The tables below will help you determine your ideal bra size. Start by measuring your bust to find your bra size. Then, use your bust measurement to determine the appropriate cup size.


Example:
- If your bust measurement is between 73 and 77 cm, your bra size is 90.
- For a bra size of 90, a bust measurement between 89 and 91 cm corresponds to a cup B.


Bra size based on bust measurement:


Bust measurement (cm) Bra size
58 - 62 75
63 - 67 80
68 - 72 85
73 - 77 90
78 - 82 95
83 - 87 100
88 - 92 105
93 - 97 110
98 - 102 115
103 - 107 120
108 - 112 125
113 - 117 130
118 - 122 135
123 - 127 140
128 - 132 145

Bra cup size based on bust measurement:


★ Small coverage cups

Bra size Cup AA
(Bust measurement in cm)
Cup A
(Bust measurement in cm)
Cup B
(Bust measurement in cm)
75 70 - 72 72 - 74 74 - 76
80 75 - 77 77 - 79 79 - 81
85 80 - 82 82 - 84 84 - 86
90 85 - 87 87 - 89 89 - 91
95 90 - 92 92 - 94 94 - 96
100 95 - 97 97 - 99 99 - 101
105 100 - 102 102 - 104 104 - 106
110 105 - 107 107 - 109 109 - 111
115 110 - 112 112 - 114 114 - 116
120 115 - 117 117 - 119 119 - 121
125 120 - 122 122 - 124 124 - 126
130 125 - 127 127 - 129 129 - 131
135 130 - 132 132 - 134 134 - 136
140 135 - 137 137 - 139 139 - 141
145 140 - 142 142 - 144 144 - 146

★ Medium coverage cups

Bra size Cup C
(Bust measurement in cm)
Cup D
(Bust measurement in cm)
Cup E
(Bust measurement in cm)
75 76 - 78 78 - 80 80 - 82
80 81 - 83 83 - 85 85 - 87
85 86 - 88 88 - 90 90 - 92
90 91 - 93 93 - 95 95 - 97
95 96 - 98 98 - 100 100 - 102
100 101 - 103 103 - 105 105 - 107
105 106 - 108 108 - 110 110 - 112
110 111 - 113 113 - 115 115 - 117
115 116 - 118 118 - 120 120 - 122
120 121 - 123 123 - 125 125 - 127
125 126 - 128 128 - 130 130 - 132
130 131 - 133 133 - 135 135 - 137
135 136 - 138 138 - 140 140 - 142
140 141 - 143 143 - 145 145 - 147
145 146 - 148 148 - 150 150 - 152

★ Full coverage / large size cups

Bra size Cup F
(Bust measurement in cm)
Cup G
(Bust measurement in cm)
Cup H
(Bust measurement in cm)
75 82 - 84 84 - 86 86 - 88
80 87 - 89 89 - 91 91 - 93
85 92 - 94 94 - 96 96 - 98
90 97 - 99 99 - 101 101 - 103
95 102 - 104 104 - 106 106 - 108
100 107 - 109 109 - 111 111 - 113
105 112 - 114 114 - 116 116 - 118
110 117 - 119 119 - 121 121 - 123
115 122 - 124 124 - 126 126 - 128
120 127 - 129 129 - 131 131 - 133
125 132 - 134 134 - 136 136 - 138
130 137 - 139 139 - 141 141 - 143
135 142 - 144 144 - 146 146 - 148
140 147 - 149 149 - 151 151 - 153
145 152 - 154 154 - 156 156 - 158

What accessories to use to enlarge a cup?

If you do not wish to modify your existing bra, several accessories can help you enlarge the cup:

  • Extenders and back extenders: They attach at the back to provide more length to the band.
  • Silicone pads: Placed inside the cup, they can adjust the shape and volume.
  • Adjustable or additional straps: They allow you to modify the tension and support of the bra.
  • Elastics and additional hooks: To further customize the fit of the underwear.

These solutions are ideal for adapting your bra without having to buy a new one.

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How to adjust a bra that is too tight?

A bra that is too tight can be uncomfortable and cause daily issues. To adjust it, you can:

  1. Use a extender for the band, providing more space.
  2. Adjust the straps for better support without excessive compression.
  3. Choose wireless models to promote circulation. 

The key is to find the solution that provides you with a perfect fit and resolves your comfort issue.

How to improve the comfort of a bra?

To improve the comfort of your bra, several factors need to be considered:

  • Adjust the size correctly: a good fit is essential for comfort.
  • Choose the right material for your cup: soft and breathable fabrics are preferable.
  • Try a wireless bra for a softer comfort.
  • Consider a push-up bra if you want to enhance your bust.
  • Follow the advice of lingerie professionals.

Les Petits Imprimés offers a selection of bras made from skin-friendly materials, suitable for every body type. Feel free to explore our collections of backless, wireless, strapless, and sexy lingerie to find the perfect fit!

Woman whose bust measurement is taken by another woman.

How to measure your bra size?

Properly measuring your bra size is essential for a perfect fit. Here’s how to do it:

  1. Measure your back by placing the tape under your bust.
  2. Measure your bust by placing the tape at the widest point.
  3. Use our online automatic size calculator to determine your size and cup depth. 

Signs such as marks on the skin or a bra that rides up may indicate that the size is not adequate. Be sure to check your measurements regularly, as they can change over time.

Measurement guide

How to take my measurements?

Measure directly on your body using a tape measure, without pulling too tight. For an accurate result, remove your bra or wear one without underwires or rigid cups.


My bra size is:

In summary

Adjusting and enlarging a bra cup is not an insurmountable task. With the right tips and a bit of know-how, you will get the most comfortable bra in your wardrobe! And if these adjustments do not meet your expectations, your next favorite bra is probably waiting for you in the online store Les Petits Imprimés!

A question on your mind? We have the answer!

Is it risky to modify a bra by yourself?

No, with the right steps, it’s doable. Use a basic sewing kit and proceed gently. Otherwise, opt for accessories like extensions to avoid any sewing.

How do I know if my bra is too tight?

Marks on the skin or a bra that rides up indicate a poor fit. Take your measurements regularly to find the ideal size.

What accessories to choose to enlarge a cup without sewing?

Back extensions, silicone pads, or adjustable straps are perfect for a quick and comfortable fit, without altering the bra.

Profile picture of Laëtitia Lanteri: expert writer in fashion for 7 years.

Laëtitia Lanteri

Experienced writer with over 1200 published articles in 7 years, Laëtitia deciphers the latest fashion trends and delivers fresh and current ideas for a bold style.


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