diff --git a/homeassistant/const.py b/homeassistant/const.py
index 41068748fd8ea..dc20627ed7228 100644
--- a/homeassistant/const.py
+++ b/homeassistant/const.py
@@ -1357,7 +1357,7 @@ class UnitOfBloodGlucoseConcentration(StrEnum):
     """Blood glucose concentration units."""
 
     MILLIGRAMS_PER_DECILITER = "mg/dL"
-    MILLIMOLS_PER_LITER = "mmol/L"
+    MILLIMOLE_PER_LITER = "mmol/L"
 
 
 # Speed units
diff --git a/homeassistant/util/unit_conversion.py b/homeassistant/util/unit_conversion.py
index b1c2e4cd309c9..b4fe0a4c7f274 100644
--- a/homeassistant/util/unit_conversion.py
+++ b/homeassistant/util/unit_conversion.py
@@ -180,7 +180,7 @@ class BloodGlugoseConcentrationConverter(BaseUnitConverter):
     UNIT_CLASS = "blood_glucose_concentration"
     _UNIT_CONVERSION: dict[str | None, float] = {
         UnitOfBloodGlucoseConcentration.MILLIGRAMS_PER_DECILITER: 18,
-        UnitOfBloodGlucoseConcentration.MILLIMOLS_PER_LITER: 1,
+        UnitOfBloodGlucoseConcentration.MILLIMOLE_PER_LITER: 1,
     }
     VALID_UNITS = set(UnitOfBloodGlucoseConcentration)
 
diff --git a/tests/util/test_unit_conversion.py b/tests/util/test_unit_conversion.py
index d17ab39f0679c..65e4aa1e1ba47 100644
--- a/tests/util/test_unit_conversion.py
+++ b/tests/util/test_unit_conversion.py
@@ -85,7 +85,7 @@
 _GET_UNIT_RATIO: dict[type[BaseUnitConverter], tuple[str | None, str | None, float]] = {
     BloodGlugoseConcentrationConverter: (
         UnitOfBloodGlucoseConcentration.MILLIGRAMS_PER_DECILITER,
-        UnitOfBloodGlucoseConcentration.MILLIMOLS_PER_LITER,
+        UnitOfBloodGlucoseConcentration.MILLIMOLE_PER_LITER,
         18,
     ),
     ConductivityConverter: (
@@ -143,11 +143,11 @@
             90,
             UnitOfBloodGlucoseConcentration.MILLIGRAMS_PER_DECILITER,
             5,
-            UnitOfBloodGlucoseConcentration.MILLIMOLS_PER_LITER,
+            UnitOfBloodGlucoseConcentration.MILLIMOLE_PER_LITER,
         ),
         (
             1,
-            UnitOfBloodGlucoseConcentration.MILLIMOLS_PER_LITER,
+            UnitOfBloodGlucoseConcentration.MILLIMOLE_PER_LITER,
             18,
             UnitOfBloodGlucoseConcentration.MILLIGRAMS_PER_DECILITER,
         ),