Recommended Material Design Dimensions for Android

material_design_guidelines_dimens.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <!-- 
        # Material Design Dimensions

        These dimensions are provided as per Material Design Guidelines 
        to adhere to a 8 dp baseline grid. (With the exception of the 
        toolbar and notification bar.)
        
        Using these dimensions lessens the use of arbitrary dimension 
        choices and magic number wizardry.
        
        ## References
        
        - https://www.google.com/design/spec/layout/metrics-keylines.html
        - https://www.google.com/design/spec/style/typography.html
    -->

    <!-- Margins & Padding -->
    <dimen name="margin_padding_size_small">8dp</dimen>
    <dimen name="margin_padding_size_medium">16dp</dimen>
    <dimen name="margin_padding_size_large">32dp</dimen>

    <!-- Icon sizes -->
    <dimen name="standard_icon_size">32dp</dimen>
    <dimen name="launcher_icon_size">48dp</dimen>

    <!-- Touch Target Size-->
    <dimen name="standard_touch_size">48dp</dimen>

    <!-- Toolbar, 4 dp baseline -->
    <dimen name="toolbar_margin_size">4dp</dimen>
    <dimen name="toolbar_icon_size">24dp</dimen>

    <!-- Notification bar, 2 dp baseline -->
    <dimen name="notification_margin_size">2dp</dimen>
    <dimen name="notification_icon_size">22dp</dimen>

    <!-- Font sizes -->
    <dimen name="text_size_micro">12sp</dimen>
    <dimen name="text_size_small">14sp</dimen>
    <dimen name="text_size_medium">16sp</dimen>
    <dimen name="text_size_large">20sp</dimen>
    <dimen name="text_size_xlarge">34sp</dimen>
    <dimen name="text_size_xxlarge">45sp</dimen>
    <dimen name="text_size_xxxlarge">56sp</dimen>
    <dimen name="text_size_xxxxlarge">112sp</dimen>
</resources>