Yes, of course. You can switch from metric to imperial, or the other way around, at any time. Follow these steps:

1. Tap the Menu icon
2. Tap the Settings icon
3. Scroll down to the Preferences section.
4. Next to Weight you can select either “g” (metric) or “oz” (imperial).

Also, next to Temperature you can select either °C (Celsius) or °F (Fahrenheit).