diff --git a/homeassistant/components/litterrobot/sensor.py b/homeassistant/components/litterrobot/sensor.py
index ab87df88bbe..3b994f4ae9d 100644
--- a/homeassistant/components/litterrobot/sensor.py
+++ b/homeassistant/components/litterrobot/sensor.py
@@ -16,7 +16,7 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import MASS_POUNDS, PERCENTAGE
+from homeassistant.const import PERCENTAGE, UnitOfMass
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity import EntityCategory
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
@@ -140,7 +140,7 @@ ROBOT_SENSOR_MAP: dict[type[Robot], list[RobotSensorEntityDescription]] = {
         RobotSensorEntityDescription[LitterRobot4](
             key="pet_weight",
             name="Pet weight",
-            native_unit_of_measurement=MASS_POUNDS,
+            native_unit_of_measurement=UnitOfMass.POUNDS,
             device_class=SensorDeviceClass.WEIGHT,
             state_class=SensorStateClass.MEASUREMENT,
         ),
diff --git a/homeassistant/components/omnilogic/sensor.py b/homeassistant/components/omnilogic/sensor.py
index ba661c8cbd5..d072cc3d9bd 100644
--- a/homeassistant/components/omnilogic/sensor.py
+++ b/homeassistant/components/omnilogic/sensor.py
@@ -6,10 +6,10 @@ from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import (
     CONCENTRATION_PARTS_PER_MILLION,
     ELECTRIC_POTENTIAL_MILLIVOLT,
-    MASS_GRAMS,
     PERCENTAGE,
     TEMP_CELSIUS,
     TEMP_FAHRENHEIT,
+    UnitOfMass,
     UnitOfVolume,
 )
 from homeassistant.core import HomeAssistant
@@ -174,7 +174,7 @@ class OmniLogicSaltLevelSensor(OmnilogicSensor):
 
         if self._unit_type == "Metric":
             salt_return = round(int(salt_return) / 1000, 2)
-            unit_of_measurement = f"{MASS_GRAMS}/{UnitOfVolume.LITERS}"
+            unit_of_measurement = f"{UnitOfMass.GRAMS}/{UnitOfVolume.LITERS}"
 
         self._unit = unit_of_measurement
 
diff --git a/homeassistant/components/tasmota/sensor.py b/homeassistant/components/tasmota/sensor.py
index a2715e0b7ed..282ea69d272 100644
--- a/homeassistant/components/tasmota/sensor.py
+++ b/homeassistant/components/tasmota/sensor.py
@@ -24,7 +24,6 @@ from homeassistant.const import (
     ENERGY_KILO_WATT_HOUR,
     LENGTH_CENTIMETERS,
     LIGHT_LUX,
-    MASS_KILOGRAMS,
     PERCENTAGE,
     PRESSURE_HPA,
     SIGNAL_STRENGTH_DECIBELS,
@@ -37,6 +36,7 @@ from homeassistant.const import (
     TEMP_KELVIN,
     UnitOfApparentPower,
     UnitOfFrequency,
+    UnitOfMass,
     UnitOfPower,
 )
 from homeassistant.core import HomeAssistant, callback
@@ -219,7 +219,7 @@ SENSOR_UNIT_MAP = {
     hc.FREQUENCY_HERTZ: UnitOfFrequency.HERTZ,
     hc.LENGTH_CENTIMETERS: LENGTH_CENTIMETERS,
     hc.LIGHT_LUX: LIGHT_LUX,
-    hc.MASS_KILOGRAMS: MASS_KILOGRAMS,
+    hc.MASS_KILOGRAMS: UnitOfMass.KILOGRAMS,
     hc.PERCENTAGE: PERCENTAGE,
     hc.POWER_WATT: UnitOfPower.WATT,
     hc.PRESSURE_HPA: PRESSURE_HPA,
diff --git a/homeassistant/components/watttime/sensor.py b/homeassistant/components/watttime/sensor.py
index 040753d97e8..c8e9a376fdc 100644
--- a/homeassistant/components/watttime/sensor.py
+++ b/homeassistant/components/watttime/sensor.py
@@ -10,7 +10,7 @@ from homeassistant.components.sensor import (
     SensorStateClass,
 )
 from homeassistant.config_entries import ConfigEntry
-from homeassistant.const import ATTR_LATITUDE, ATTR_LONGITUDE, MASS_POUNDS, PERCENTAGE
+from homeassistant.const import ATTR_LATITUDE, ATTR_LONGITUDE, PERCENTAGE, UnitOfMass
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import StateType
@@ -37,7 +37,7 @@ REALTIME_EMISSIONS_SENSOR_DESCRIPTIONS = (
         key=SENSOR_TYPE_REALTIME_EMISSIONS_MOER,
         name="Marginal operating emissions rate",
         icon="mdi:blur",
-        native_unit_of_measurement=f"{MASS_POUNDS} CO2/MWh",
+        native_unit_of_measurement=f"{UnitOfMass.POUNDS} CO2/MWh",
         state_class=SensorStateClass.MEASUREMENT,
     ),
     SensorEntityDescription(