Xamarin.Forms defines fields in the NamedSize enumeration that represent specific font sizes. The following table shows the NamedSize members, and their default sizes on iOS, Android, and the Universal Windows Platform (UWP):

Member	iOS	Android	UWP
Default	16	14	14
Micro	11	10	15.667
Small	13	14	18.667
Medium	16	17	22.667
Large	20	22	32
Body	17	16	14
Header	17	96	46
Title	28	24	24
Subtitle	22	16	20
Caption	12	12	12

Named font sizes can be set through both XAML and code. In addition, the Device.GetNamedSize method can be called to return a double that represents the named font size:C#Copy

label.FontSize = Device.GetNamedSize(NamedSize.Small, typeof(Label));