Changing Weight Units on the MyFitnessPal Mobile App
For most users, the mobile app is the primary way to interact with MyFitnessPal. Fortunately, the process for changing your weight units is straightforward, whether you're on an iOS or Android device.
For iOS Devices (iPhone and iPad)
- Open the MyFitnessPal app and log in to your account.
- Tap the 'More' icon in the bottom-right corner of the navigation bar. This looks like three horizontal dots or lines.
- Navigate to Settings from the menu that appears.
- Tap 'Edit Profile'. On newer versions, you may need to tap your profile photo first.
- Select 'Units' from the list of profile options.
- Find the 'Weight' setting and tap on it. You will see a list of available unit options, including kilograms (kg), pounds (lbs), and stones/pounds.
- Choose your desired weight unit and tap 'Confirm' or 'Save'. The app will automatically convert your existing weight entries to the new unit.
For Android Devices
- Launch the MyFitnessPal app and sign in.
- Tap the 'More' icon, which is typically in the bottom-right corner.
- Go to 'Settings' and then 'My Account'.
- Select 'Edit Profile'.
- Tap the 'Units' field to open the measurement options.
- Change the 'Weight' unit to your preferred format (kg, lbs, or stones).
- Press 'OK' or the checkmark icon to save your new settings. Your weight data will be updated across your account.
Changing Weight Units on the MyFitnessPal Website
For those who prefer a desktop experience or need to make adjustments that aren't available on the mobile app, the website provides another pathway. Changing the units via the website will automatically sync the changes to your mobile app.
- Log in to your account at www.myfitnesspal.com.
- Click on 'My Home' in the top menu bar.
- Select 'Settings' from the drop-down menu.
- Click on 'Change Units' on the left-hand side of the page.
- Use the drop-down menus to select your desired unit for weight.
- Click 'Save Changes' to finalize the update.
Managing Past Entries and Food Units
Changing your account's primary weight unit will convert past weight measurements, but it will not change the serving size units for food entries. For example, if you change your units from Imperial to Metric, food logged in ounces will not automatically switch to grams.
- To update past weight entries, especially if the conversion appears incorrect, use the web portal. Go to 'My Home' -> 'Check-in' -> 'Edit Previous Entries' to manually adjust or delete specific weigh-ins.
- To log food in a different unit, you may need to find a different entry in the food database. Many foods have multiple entries logged by users, some in grams and others in ounces. Search for an entry that uses your desired unit.
- Create your own entry if you can't find one in the correct unit. This gives you full control over the measurement, ensuring accuracy.
Imperial vs. Metric for Weight Tracking
Choosing between Imperial and Metric units for tracking weight depends on personal preference and your environment. Each has distinct characteristics that can impact the tracking experience.
| Feature | Imperial (lbs, stones) | Metric (kg) | 
|---|---|---|
| Measurement System | Less consistent (based on different number systems) | Consistent and coherent (based on decimal numbers) | 
| Calculations | Can be more complicated, especially with percentages or fractions | Easier to perform calculations due to its base-10 nature | 
| Global Usage | Primarily used in the United States and some other regions | The global standard, used in over 90% of countries | 
| Precision | Can feel less precise with large ranges, using awkward fractions | Handles very large and small quantities with easy-to-remember prefixes | 
Conclusion: A Seamless Tracking Experience
Adjusting your weight units in MyFitnessPal is a simple and fast process that can be done on both the mobile app and website. While the platform excels at converting weight entries, it's important to be aware of the nuances with food logging units, which may require a manual search or custom entry. Taking the time to set your units correctly ensures that your health data is presented clearly and accurately, allowing for a more focused and seamless tracking experience. By following the steps outlined in this guide, you can ensure your MyFitnessPal account is perfectly aligned with your tracking preferences, whether you prefer pounds, kilograms, or stones.