diff --git a/.changeset/four-shoes-think.md b/.changeset/four-shoes-think.md
new file mode 100644
index 0000000000..920bbccf58
--- /dev/null
+++ b/.changeset/four-shoes-think.md
@@ -0,0 +1,5 @@
+---
+"@primer/view-components": minor
+---
+
+Support font_size and border_radius in classify/utilities
diff --git a/lib/primer/classify/utilities.rb b/lib/primer/classify/utilities.rb
index 2872778ca0..67e2caaf95 100644
--- a/lib/primer/classify/utilities.rb
+++ b/lib/primer/classify/utilities.rb
@@ -27,7 +27,9 @@ class Utilities
         "^height" => "h",
         "^color-bg" => "bg",
         "^color-border" => "border_color",
-        "^color-fg" => "color"
+        "^color-fg" => "color",
+        "^f" => "font_size",
+        "^rounded" => "border_radius"
       }.freeze
 
       SUPPORTED_KEY_CACHE = Hash.new { |h, k| h[k] = !UTILITIES[k].nil? }
diff --git a/test/lib/classify/utilities_test.rb b/test/lib/classify/utilities_test.rb
index 7b2fffcda3..aa0ca7bd58 100644
--- a/test/lib/classify/utilities_test.rb
+++ b/test/lib/classify/utilities_test.rb
@@ -104,6 +104,7 @@ def test_classes_to_args
     assert_equal('mr: 1, mb: 2, classes: "foo"', Primer::Classify::Utilities.classes_to_args("mr-1 mb-2 foo"))
     assert_equal('classes: "foo"', Primer::Classify::Utilities.classes_to_args("foo"))
     assert_equal("mx: :auto", Primer::Classify::Utilities.classes_to_args("mx-auto"))
+    assert_equal("font_size: 3, border_radius: 0", Primer::Classify::Utilities.classes_to_args("f3 rounded-0"))
     assert_equal('mr: [1, 2], classes: "baz bin"', Primer::Classify::Utilities.classes_to_args("mr-1 mr-sm-2 baz bin"))
     assert_equal('mr: [1, nil, 2], classes: "foo bar"', Primer::Classify::Utilities.classes_to_args("mr-1 mr-md-2 foo bar"))
   end