Choosing between 650cc and 700cc breast implants means comparing a relatively small 50cc difference in volume, about 7.7%. How noticeable that difference looks depends much more on your breast base width, chest anatomy, existing tissue, implant profile, and the dimensions of the specific implant than on the cc number alone.
Both implants are considered larger, but neither corresponds to a specific bra cup size or guarantees a certain amount of cleavage or projection. Below, we compare their size, dimensions, weight, and key considerations to help you understand what may matter most when choosing between them.
Key takeaways: 650cc vs 700cc Breast Implants
| Factor | 650cc Breast Implants | 700cc Breast Implants |
|---|---|---|
| Volume | 650 cubic centimeters | 700 cubic centimeters |
| Volume difference | Baseline | 50cc more, or about 7.7% more volume |
| Implant Width | Varies by manufacturer, implant model, and profile | Varies by manufacturer, implant model, and profile |
| Projection | Depends on implant profile and design; 650cc does not automatically mean less projection | Depends on implant profile and design; 700cc does not automatically mean more projection |
| Weight | Varies by fill material, shell, manufacturer, and model | Generally slightly heavier because of the additional volume, but exact weight varies by implant |
| Cup Size | Cannot be reliably converted into a specific cup size | Cannot be reliably converted into a specific cup size |
650cc vs 700cc Implants: What’s the Real Difference?
The direct difference between 650cc and 700cc implants is volume: 700cc contains 50cc more, or about 7.7% additional volume. However, that extra volume does not automatically mean substantially more projection, cleavage, or upper-pole fullness.
How either implant looks depends on the dimensions and profile of the specific implant, as well as your breast base width, chest anatomy, existing breast tissue, and surgical placement. For example, a higher-profile 650cc implant may project more than a lower-profile 700cc implant. This is why you should consider implant diameter and projection alongside volume, rather than comparing cc numbers alone.
Factors to Consider When Choosing the Right Implant Size
The appropriate implant volume depends on how well the implant fits your anatomy, tissue characteristics, and aesthetic goals. Two of the most important considerations are your breast base width and soft-tissue coverage, along with your overall body proportions. These factors help determine the most appropriate implant dimensions before comparing 650cc and 700cc directly.
Body Frame and Implant Volume
Your frame sets the safe and aesthetic size range. When we evaluate implant volume, we focus on:
- Base width (the natural footprint of your breast on the chest wall).
- Soft-tissue coverage, including skin thickness and existing breast tissue.
- Chest width, which determines how much volume can sit naturally without side spill.
- Skin quality, since thinner skin may require profile or pocket adjustments.
A wider breast base may allow room for a larger implant diameter, but chest width alone does not determine whether 650cc or 700cc is appropriate. The implant must also fit the patient’s breast footprint, tissue coverage, skin quality, and desired projection. The goal is to select dimensions that fit the anatomy first, then refine for your aesthetic goals.
Weight, Height, and Proportionality
Overall body proportions influence how large implants actually look. When we assess proportionality, we consider:
- Height, which affects how projection and volume are distributed visually
- Body weight and fat distribution, which can soften edges and improve blending
- Torso length, impacting where fullness sits on the chest
- Shoulder and hip width, which affects overall balance in clothing and photos
A 700cc implant may appear more prominent on a smaller frame and more proportionate on a taller or broader build, but implant profile, breast base width, and existing tissue remain important. Sizers or 3D imaging can help compare how 650cc and 700cc may look on your individual anatomy.
Aesthetic Goals with 650cc and 700cc Implants
Once an appropriate size range has been established, implant profile, diameter, placement, and your existing anatomy help determine the final shape. Two implants with similar volumes can produce noticeably different results depending on how their width and projection are distributed.
What Do 650cc Breast Implants Look Like?
650cc breast implants provide substantial volume, but their appearance varies with implant profile and the patient’s anatomy. A higher-profile implant may concentrate more volume forward, while a wider or lower-profile implant distributes more volume across the chest. For this reason, the dimensions of the specific implant matter as much as its volume.
What Do 700cc Breast Implants Look Like?
700cc implants provide slightly more volume than 650cc implants, but the visible difference may be subtle or more noticeable depending on the implant profile and the patient’s proportions. A 700cc implant does not automatically create greater projection or cleavage, so implant dimensions should be evaluated alongside the cc number.
How Are 650cc and 700cc Implants Chosen During Consultation?
During a breast augmentation consultation, Dr. Steinbrech considers the patient’s goals and preferences along with her frame, existing breast tissue, skin elasticity, and breast measurements. These factors help determine which implant dimensions are appropriate before choosing between volumes such as 650cc and 700cc.
Implant volume is considered together with the implant’s shape, type, profile, and placement rather than as an isolated number. Sizers may also be used to help patients visualize different options. The goal is to select an implant that fits the patient’s anatomy and proportions while supporting the desired aesthetic result.
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- Real Patient
Does Implant Type Matter When Comparing 650cc vs 700cc?
Yes. Implant volume is only one part of the decision. 650cc and 700cc silicone implants can vary in width and projection depending on their profile and design. Silicone implants generally feel more like natural breast tissue and may show less rippling, while saline implants are filled after placement and can allow some intraoperative adjustment. For silicone gel implants, the FDA recommends an ultrasound or MRI 5–6 years after surgery and every 2–3 years thereafter to screen for silent rupture.
When comparing 650cc and 700cc implants, the specific implant model, profile, diameter, projection, and your anatomy are more important than fill type alone. Your surgeon can help determine which combination of implant size, type, and dimensions best fits your breast base, tissue coverage, and aesthetic goals.
How Much Do 650cc and 700cc Implants Weigh?
Implant volume and implant weight are related, but they are not the same measurement. A 700cc implant generally weighs more than a comparable 650cc implant because it contains more volume, but the exact weight varies depending on the fill material, shell construction, manufacturer, and implant model.
For saline implants, the fill itself provides a useful reference: 650cc of saline weighs roughly 650 grams, while 700cc weighs roughly 700 grams, before accounting for the implant shell. Silicone implant weight varies by design and materials, so the exact figure should be confirmed for the specific implant being considered.
How Do 650cc and 700cc Compare to Other Large Implant Sizes?
Compared with 600cc implants, 650cc and 700cc provide additional volume, while 800cc implants add more volume still. However, these numbers alone do not determine width, projection, appearance, or suitability. Implant profile, dimensions, tissue coverage, breast base width, and overall anatomy remain important at every size.
Does Implant Size Affect Long-Term Considerations?
The difference between 650cc and 700cc does not create a separate set of risks, but the additional volume and weight of a 700cc implant may place somewhat more mechanical demand on the skin and supporting tissues. How much that matters depends on breast base width, tissue quality, skin elasticity, implant dimensions, profile, and surgical placement.
Breast implants are not considered lifetime devices, and some patients may eventually require additional surgery regardless of implant size. For long-term results, the most important factor is not choosing the lowest cc number, but selecting an implant that fits your anatomy appropriately. A well-matched 700cc implant may be more suitable for one patient than a 650cc implant is for another.
Who Should Perform My Breast Augmentation Procedure?
Breast augmentation should be performed by a qualified plastic surgeon with experience in implant selection, surgical planning, and aesthetic breast surgery, particularly when considering larger implant volumes such as 650cc or 700cc.
Dr. Douglas Steinbrech is board-certified by the American Board of Plastic Surgery and trained at the NYU Institute of Plastic and Reconstructive Surgery. He has extensive experience in aesthetic plastic surgery and has authored numerous peer-reviewed publications. If you are considering 650cc or 700cc breast implants, call 646-949-0580 or visit our contact page to schedule a consultation.
Frequently Asked Questions About 650cc and 700cc Implants
ABOUT THE AUTHOR
Douglas S. Steinbrech, MD, FACS
New York Board-Certified Plastic Surgeon
Douglas S. Steinbrech, MD, FACS, is a board-certified plastic surgeon with more than two decades of experience in aesthetic plastic surgery. His practice includes surgical and minimally invasive procedures for the face and body, with an emphasis on individualized treatment planning, anatomical precision, patient safety, and natural-looking results.
Dr. Steinbrech’s credentials include:
- Medical Degree — University of Iowa College of Medicine
- General Surgery Training — New York University Medical Center
- Craniofacial Research Fellowship — Institute of Reconstructive Plastic Surgery at NYU
- Plastic & Reconstructive Surgery Residency — Institute of Reconstructive Plastic Surgery at NYU Medical Center
- Board Certification — American Board of Plastic Surgery
Expertise Areas:
Aesthetic Plastic Surgery, Facial Rejuvenation, Body Contouring, Minimally Invasive Aesthetic Treatments, and Surgical & Non-Surgical Cosmetic Procedures.
