diff --git a/windspharm/standard.py b/windspharm/standard.py
index 8215fee..1c9c789 100644
--- a/windspharm/standard.py
+++ b/windspharm/standard.py
@@ -137,7 +137,7 @@ def magnitude(self):
             spd = w.magnitude()
 
         """
-        return (self.u ** 2 + self.v ** 2) ** 0.5
+        return np.hypot(self.u, self.v)
 
     def vrtdiv(self, truncation=None):
         """Relative vorticity and horizontal divergence.