How Much Do Boobs Weigh? This is interesting…

Boobs come in different shapes and sizes, so some will weigh more than others. Of course, it stands to reason that the bigger your boobs are, the more they weigh – well, generally speaking. So if you’re having a debate with your girlfriends about “How much do boobs weigh”? read along…. our Bra Fitter Pat will guide you through this rather complicated topic!

In this article, we will share the known weight of breasts and how you can measure yours.

How much do boobs weigh

How Much Do Boobs Weigh?

To measure how heavy the breasts are, we will use the bra cup size for reference. Each measurement is per breast.
use the bra cup size for reference
Although this table only provides a general ballpark figure and the values may vary from person to person, it’s still a great way to estimate how heavy your breasts are.

The effect of weight of boobs on posture

weight of breasts
Heavy boobs causing bad posture are very common among women. It is not to say that if you have small boobs, your posture cannot be affected, but there have been more cases of women with large breasts seen with a bad posture which resulted from the size of their breasts. How it could affect posture include:

1. Hunched Back/Shoulders

Breasts in females start developing from a very young age. Many girls become self-conscious and begin rounding their shoulders to cover up the fact they are developing. As they mature, rounding their shoulders might become a habit, and they can develop a hunched upper back. In severe cases, this bad posture can lead to spinal cord-related issues.

2. Forward Head Posture

This phenomenon goes along with the previous one we just talked about. Hunched back or shoulder can lead to a severe case of forward-head posture. We’ve talked about how heavy the weight of breasts can get — for you to hold that extra weight in the front of the ribs, your posture might become slouched to maintain balance. This slouched posture is what also causes the forward head and neck posture. It could lead to neck pain which can become chronic over time. 

Health Problems Related To Heavy Breasts

The heavy weight of breasts has been linked to several health problems affecting women. Many of these problems affect women from their early years until they mature. 

1. Pain

It is one of the most common problems for women with overly large boobs. What causes the pain is the extra load, stress, and tension placed on the spine, muscles, or joint. As continuous strain is placed on your muscle, knots start forming, which can be very uncomfortable. Pain can also be in any of these areas of your body, shoulders, back, or neck. 

2. Difficulty With Exercising

Many women experience the inability to exercise or even bend down or stand up. They might have problems walking fast or jumping, and this lack of physical activity can lead to further health-related issues. You might also experience shortness of breath performing a task because of the weight of your breasts on your chest. 

3. Numbness

Several women have experienced numbness in their arms, hands, fingers, or even breasts because of how heavy they are. The cause of the numbness you feel is the compression of nerve fibers in the chest fall or breast tissue. It could be because you’re wearing a tight-fitting bra or bad posture.

Headaches and migraines are caused by the weight of the breasts

4. Headaches

Headaches and migraines are caused by the weight of the breasts, adding more stressors to the neck, head, and upper back muscles. 

5. Rashes

Another health problem related to the weight of breasts is the development of rashes due to moisture and heat trapped under the breasts. The rashes could be minor or severe, resulting in you visiting the doctor and taking medications. Skin infections can also arise from heat.

6. Shoulder Grooves 

Women with large breasts struggle to find a fitting bra. Even when they eventually find one, the bra strap often finds it hard to hold the weight of the boobs, which causes a deep indentation in the shoulder. This indentation is known as shoulder grooves which can cause pain and disfigurement. 

These health-related problems and more are why women with overly large breasts are encouraged to undergo breast reduction surgery, especially when it affects their daily lives.

How To Weigh Your Boobs

It’s impossible to weigh your boobs by simply plopping them on a scale. Your results will be wildly inaccurate and alarming, to say the least. The most widely used method for weighing boobs is the water displacement method. 

The goal is to use the volume of water displaced by your breasts to estimate how much they weigh. To use this method, you will need:

  • A large bowl
  • Kitchen scale
  • Waterproof tray
can bras cause bad posture
→ READ: Heavy Boobs Causing Bad Posture

Step One

Weigh the tray on a scale that measures in ounces (for a more accurate number), then fill the bowl with water till it gets to the brim. The water temperature doesn’t matter as it doesn’t play a role in the measurement. 

Step Two

Lower yourself until one of your boobs is fully submerged in the water. You will notice that some water will spill over into the tray. 

Step Three

After you’re done, place the tray with the spilled water on the scale. Ensure you do this carefully, so the water doesn’t spill from the tray. 

Step Four

Measure the weight of the tray and then subtract the result from the initial weight of your tray. For example, if you had 33.3 ounces and your tray (before the water spilled) weighed 2.2 ounces, subtract 2.2 from 33.3, which gives 31.1 ounces.

Step Five

To get the approximate weight of your breast (because the weight of breast tissue is not the same as that of water), multiply the previous result by 0.9. So that’s 31.1×0.9, which gives 27.99 ounces. To convert it to pounds, divide the weight in ounces by 16, which gives 1.75 pounds. 

Step Six

Repeat the step on the other breast because it could be slightly different. Make sure to do the whole process on both boobs more than once to get the accurate weight of both. 


Women with bigger and heavier boobs do not have the luxury of managing the wrong bra size. It could cause potential health challenges down the line. Knowing the weight of your boobs can help prevent you from wearing the wrong bra size and developing other health complications. 

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