diff --git a/util/Vector.h b/util/Vector.h
index 283f7f0..6794e16 100644
--- a/util/Vector.h
+++ b/util/Vector.h
@@ -18,6 +18,7 @@ class Vector
         double dist_to(const Vector & other) const;
         Vector proj(const Vector & target) const;
         Vector reflect(const Vector & target) const;
+        operator double() { return mag(); }
 
     protected:
         double  m_array[3];