diff --git a/packages/panda-san/src/mixins/index.scss b/packages/panda-san/src/mixins/index.scss
index b433f0f..9c0c1f8 100644
--- a/packages/panda-san/src/mixins/index.scss
+++ b/packages/panda-san/src/mixins/index.scss
@@ -1 +1,2 @@
 @import 'breakpoints';
+@import 'transforms';
diff --git a/packages/panda-san/src/mixins/transforms.scss b/packages/panda-san/src/mixins/transforms.scss
new file mode 100644
index 0000000..a293de6
--- /dev/null
+++ b/packages/panda-san/src/mixins/transforms.scss
@@ -0,0 +1,3 @@
+@function px-to-rem ($target, $context: $base-font-size) {
+  @return ($target / $context) * 1rem;
+}