Fitbit is known for helping people track and improve their daily activity levels and overall health. One of the features that they offer is the Cardio Fitness Score. It’s a tool that can help you monitor your overall cardiovascular fitness level with just a few taps on your Fitbit device.
The Cardio Fitness Score is a metric that represents your VO2 max, which is estimated based on your resting heart rate and any recent exercise data. It’s a score that can give you insight into how well your body is functioning when under stress, like during intense workouts or physical activity.
If you have a Fitbit Charge 2, 3, or 4 devices with heart-rate tracking you can track your overall cardiovascular fitness with the Fitbit app.
How The Cardio Fitness Score Works
Having a higher Cardio Fitness Score is an indicator that your body is efficient at transporting and using oxygen during physical activity. This means that your heart and lungs are working together to deliver oxygen to your muscles during exercise.A lower Cardio Fitness Score can indicate that your body is not as efficient at using oxygen and may be a sign of underlying health issues that need to be addressed.
To assess your Cardio Fitness Score, you need to have a Fitbit device with a heart rate monitor, such as the Fitbit Charge or the Versa.
Your resting heart rate and recent exercise data will be used to calculate your score. You can find your score in the Fitbit app, along with a breakdown of the factors that contribute to your score.
The factors that impact your Cardio Fitness Score include age, gender, weight, height, and activity levels. As you engage in more physical activity, your score will improve over time. Fitbit recommends aiming for a Cardio Fitness Score in the “good” to “excellent” range based on your age and gender.
Having a higher Cardio Fitness Score can help you reduce your risk of several chronic diseases, including heart disease and diabetes. It can also help you improve your overall health and fitness levels. If your score is lower than you’d like it to be, consider increasing your physical activity levels and making healthier lifestyle choices.
Cardio Fitness Chart
The Fitbit Cardio Fitness chart is a great way to monitor your cardiovascular health and track your progress over time. This score is calculated using data from the heart rate monitoring feature of your Fitbit device and other personal information, such as age, gender, and weight.
With this score, you can get an idea of how fit you are overall and how your fitness level has been changing over time. Knowing your Cardio Fitness Score can help you to focus on areas of improvement and ensure that you are doing everything necessary for a healthy lifestyle. Additionally, it can be used as motivation to stay active and reach goals related to physical activity.
There’s a slight up tick because of about 5 pounds in weight loss.
What is The Cardio Fitness Score?
The Cardio Fitness Numbers are a combination of a resting heart rate, age, sex, weight, sleep, and how well oxygen is used while working out. Fitbit has a very good explanation on its website and on the phone app.
How can I follow my Cardio Fitness score?
On your phone open up the Fitbit app. and scroll to beating red heart and open it. The first screen is your heart rate at rest, swipe the chart to the left and you will see your Cardio Fitness Score.
Tracking the Cardio Fitness Score
Cardio Fitness for September 2022
My weight has dropped off and expected a higher score.

Cardio Fitness for October 2021
Up a notch from last month.
Cardio Fitness Score for September 2021

My score of 42 to 46 is excellent for men in my age group.
Cardio Fitness for July 2020
Cardio Fitness for July 2020 moved up by 1 point from last month.
Cardio Fitness for April 2020
By far my worst numbers since I’ve started adding this chart to the site. This chart looks at your cardio fitness score from your resting heart rate, age, sex, weight, and other personal information.
Cardio Fitness for May 2019
Excellent Nice! Fitbit says my score is related to weight and to bring my score up I should lose weight but be careful not to lose muscle.
Best Cardio Fitness Numbers So Far
These are my best numbers to date. This chart was taken on August 8th, 2018.
July, 2017

Observations This has moved up 1 point from 42 – 46 and thought I could move it up higher with more steps or longer walks.
Actions & Goals I’d like to see this get to into the 60s by the end of the year. Now I’m not too sure I can accomplish this by the end of the year.
June, 2017
Observations Surprised to see this so high, since I’ve been working as a web designer I’ve taken little care of my health and so considered my heart health less than average.
Actions & Goals I’d like to see this get into the 60s by the end of the year.
Cardio Fitness or Overall Heart Health
This chart gives an overview of your heart rate health.
There’s a good description online, in short, I believe it measures how hard your heart works while resting and at peak periods while working out and then determines how efficiently the heart works with the rest of your body.
This is why it’s so important to lower or follow your heart at rest.
How can I see a chart of cardio fitness levels for various ages. I want to know how fit I would be if younger. Alternatively, how can I get the device to think I’m younger. I want to amke things more challenging.
Challenges are fun and with the Fitbit app, I think the only way is to change your age on your profile.