diff --git a/functions.js b/functions.js
index 92d9d46..a33b182 100644
--- a/functions.js
+++ b/functions.js
@@ -7,6 +7,9 @@ const postcssFunctions = {
     const lightness = `var(${name}__l)`;
     return `hsla(${hue}, ${saturation}, ${lightness}, ${alpha})`;
   },
+  spacers(number = 1) {
+    return `calc(var(--spacer-height, 1.5rem) * ${number})`;
+  },
 };
 
 module.exports = postcssFunctions;