diff --git a/src/vec2.ts b/src/vec2.ts
index 3c1fe3f..413f808 100644
--- a/src/vec2.ts
+++ b/src/vec2.ts
@@ -213,6 +213,10 @@ export namespace vec2 {
 		]
 	}
 
+	export function abs(v: vec2): vec2 {
+		return [Math.abs(v[0]), Math.abs(v[1])]
+	}
+
 	/**
 	 * symmetric round the components of a vec2
 	 */
diff --git a/src/vec3.ts b/src/vec3.ts
index 2c6e384..c2dba29 100644
--- a/src/vec3.ts
+++ b/src/vec3.ts
@@ -306,6 +306,10 @@ export namespace vec3 {
 		]
 	}
 
+	export function abs(v: vec3): vec3 {
+		return [Math.abs(v[0]), Math.abs(v[1]), Math.abs(v[2])]
+	}
+
 	/**
 	 * symmetric round the components of a vec3
 	 */
diff --git a/src/vec4.ts b/src/vec4.ts
index 56a5100..be12110 100644
--- a/src/vec4.ts
+++ b/src/vec4.ts
@@ -196,6 +196,10 @@ export namespace vec4 {
 	 */
 	export const div = divide
 
+	export function abs(v: vec4): vec4 {
+		return [Math.abs(v[0]), Math.abs(v[1]), Math.abs(v[2]), Math.abs(v[3])]
+	}
+
 	/**
 	 * symmetric round the components of a vec4
 	 */