Body Test

After choosing a Mii™ character - a virtual caricature unique to the Wii console - to represent you, use the Wii Balance Board™ accessory to measure your center of balance, Body Mass Index (BMI), and body control. Based on these results, you can also determine your Wii Fit Age. The whole family can engage in the Body Test and compare their progress together!


Your Body Test will begin simply by checking your center of balance. After stepping onto the Wii Balance Board™ accessory with your feet spread equally apart, Wii Fit Plus will check the balance of your posture and your Body Mass Index (BMI). Once the measurement is complete, you will be able to see where your center of balance is located and what your BMI is currently. Return to Top


Your Body Mass Index, or BMI, is determined by a formula comparing your weight and height. You'll even be asked for variables such as the weight of your clothes, so Wii Fit Plus can provide you with an accurate measurement. Once your BMI is displayed, you'll have the option of seeing your weight as well, but that's completely up to you. In fact, you can even protect your information from being seen by other users with a private PIN number. Return to Top

*For users 19 years old and under: BMI is a measurement typically used to assess fitness levels in adults. For users 3-19 years old, BMI can be less reliable than it is for adults. Growth rates in younger individuals differ significantly so these results are only for your general reference.

Body Control

After seeing your BMI, you'll then test your body control. Wii Fit Plus measures your body control by using two randomly selected balance tests. Perform the tests by following the simple on-screen instructions and giving it your best shot. After completing these tests, you'll be given your Wii Fit Age. Return to Top

Wii Fit Age

Your Wii Fit Age will be calculated based on your balance-test results, taking into consideration your actual age. Keep in mind: your Wii Fit Age is only a measurement of your current performance, so if you're unhappy with it, you'll have another opportunity to improve it the next time you play. Return to Top

Track progress

Once you've completed the Body Test, you can stamp the calendar, so you can keep track of your activity. During your first and subsequent Body Tests, you'll be asked if you'd like to set a BMI goal for some point in the future which can be customized to fit your schedule. Check out the What is Wii Fit Plus? section for more details on charting your progress. Return to Top