diff --git a/netbox/dcim/models/mixins.py b/netbox/dcim/models/mixins.py
index d4a05699c..4f38bebea 100644
--- a/netbox/dcim/models/mixins.py
+++ b/netbox/dcim/models/mixins.py
@@ -37,7 +37,7 @@ class WeightMixin(models.Model):
 
         # Store the given weight (if any) in grams for use in database ordering
         if self.weight and self.weight_unit:
-            self._abs_weight = to_grams(self.weight, self.weight_unit)
+            self._abs_weight = int(to_grams(self.weight, self.weight_unit))
         else:
             self._abs_weight = None
 
diff --git a/netbox/utilities/conversion.py b/netbox/utilities/conversion.py
index cd75c3c17..be95df14f 100644
--- a/netbox/utilities/conversion.py
+++ b/netbox/utilities/conversion.py
@@ -10,7 +10,7 @@ __all__ = (
 )
 
 
-def to_grams(weight, unit):
+def to_grams(weight, unit) -> float:
     """
     Convert the given weight to kilograms.
     """