diff --git a/pint/default_en.txt b/pint/default_en.txt
index b63d9fe50..a126a1e1c 100644
--- a/pint/default_en.txt
+++ b/pint/default_en.txt
@@ -236,6 +236,10 @@ kilometer_per_second = kilometer / second = kps
 meter_per_second = meter / second = mps
 foot_per_second = foot / second = fps
 
+# Volumetric Flow Rate
+[volumetric_flow_rate] = [volume] / [time]
+sverdrup = 1e6 * meter ** 3 / second = sv
+
 # Acceleration
 [acceleration] = [velocity] / [time]
 galileo = centimeter / second ** 2 = Gal