diff --git a/Classes/Vector.lua b/Classes/Vector.lua
index 0970db1..7e8caae 100644
--- a/Classes/Vector.lua
+++ b/Classes/Vector.lua
@@ -68,6 +68,10 @@ function Vector:__div(other)
 	return Vector(self.X / other.X, self.Y / other.Y, self.Z / other.Z)
 end
 
+function Vector:__len()
+    return math.sqrt(self.X^2 + self.Y^2 + self.Z^2)
+end
+
 function Vector:__pow(other)
 	return Vector(self.Y * other.Z - self.Z * other.Y, self.Z * other.X - self.X * other.Z, self.X * other.Y - self.Y * other.X)
 end
diff --git a/Classes/Vector2D.lua b/Classes/Vector2D.lua
index 3a66410..eed2f16 100644
--- a/Classes/Vector2D.lua
+++ b/Classes/Vector2D.lua
@@ -67,6 +67,10 @@ function Vector2D:__div(other)
 	return Vector2D(self.X / other.X, self.Y / other.Y)
 end
 
+function Vector2D:__len()
+    return math.sqrt(self.X^2 + self.Y^2)
+end
+
 function Vector2D:__unm()
 	return Vector2D(-self.X, -self.Y)
 end
@@ -77,4 +81,4 @@ end
 
 function Vector2D:__tostring()
 	return "Vector2D(X = " .. self.X .. ", Y = " .. self.Y .. ")"
-end
\ No newline at end of file
+end