Difference Between Lung Volume and Lung Capacity

Difference Between Lung Volume and Lung Capacity

Lung volume and capacity are two different measurements that have a lot in common; they both measure what you can breathe in, what your lungs are capable of holding, and what they can do. The main difference is how this measurement is taken: lung volume measures the amount of air you can take into your lungs from one full breath. In contrast, lung capacity measures what your lungs can hold from a deep breath with maximum chest expansion.  Lungs come in various sizes and shapes, so the numbers will vary depending on who is taking them, but there are some standards to reference. For example, an average adult has a lung volume of about six liters (L) which means their lung capacity would be around five liters or what your lungs can hold from one deep breath with maximum expansion.

Lung Volume

Lung Volume

Lung volume is the amount of air that can be breathed out in one breath. The more you inhale airphysio, the more lung volume your body has to exhale. A person’s lung volume changes as they grow older and people with certain health conditions have smaller lung volumes than normal.

The average adult human will have a total lung capacity between 4-5 liters on average, which is about 10 times their own weight. Younger children typically have less than half of this size while adults will have up to 5 liters of total lung capacity. But these numbers are not always true for everyone – some people might only use 1 liter per minute of air or even less!

Lung Capacity

Lung capacity is a measure of how much air an individual can inhale. It’s measured in liters, and it’s one of the key factors that determine your height as well as your weight. Lung capacity varies from person to person, but there are several things you can do to increase yours.

Every day, we breathe about 22,000 times without realizing it. The lungs are made up of two large organs that take oxygen from our environment into our bloodstream to function properly. When we breathe in and out, this process is called respiration, and every time we inhale or exhale, the body fills with fresh air so we can continue living for another day!

Difference between Lung Volume and Lung Capacity

It’s helpful to know what you are measuring in order to have a complete understanding of what your doctor might be talking about if they mention one or the other when discussing your health. Lung capacity is what they’re referring to when they say how much air you can take in. A measure of this would be using liters, so 13 liters of air is what’s in your lungs at any given time. This refers to the total amount of air in your lungs when you breathe out all the way and then breathe back in. Lung volume is what they mean when they use cubic meters per minute, representing how quickly 13 liters are replaced with fresh oxygen.


As you can see from the article above, there are the difference between lung volume and lung capacity. Please feel free to check out some of our other articles for your lung volume and lung capacity if you enjoyed it. We also have a blog that you can check out. Whatever the case, we hope you enjoyed this article.