diff --git a/src/docx/oxml/simpletypes.py b/src/docx/oxml/simpletypes.py
index dd10ab910..df3ab6bb6 100644
--- a/src/docx/oxml/simpletypes.py
+++ b/src/docx/oxml/simpletypes.py
@@ -262,7 +262,7 @@ class ST_HpsMeasure(XsdUnsignedLong):
     def convert_from_xml(cls, str_value: str) -> Length:
         if "m" in str_value or "n" in str_value or "p" in str_value:
             return ST_UniversalMeasure.convert_from_xml(str_value)
-        return Pt(int(str_value) / 2.0)
+        return Pt(float(str_value) / 2.0)
 
     @classmethod
     def convert_to_xml(cls, value: int | Length) -> str: