diff --git a/homeassistant/components/zwave_js/sensor.py b/homeassistant/components/zwave_js/sensor.py
index 56ed3f010b8..798d4bf92bc 100644
--- a/homeassistant/components/zwave_js/sensor.py
+++ b/homeassistant/components/zwave_js/sensor.py
@@ -661,7 +661,7 @@ class ZWaveNumericSensor(ZwaveSensor):
         """Return state of the sensor."""
         if self.info.primary_value.value is None:
             return 0
-        return round(float(self.info.primary_value.value), 2)
+        return float(self.info.primary_value.value)
 
 
 class ZWaveMeterSensor(ZWaveNumericSensor):
diff --git a/tests/components/zwave_js/test_sensor.py b/tests/components/zwave_js/test_sensor.py
index f00413b0d80..390d9631f23 100644
--- a/tests/components/zwave_js/test_sensor.py
+++ b/tests/components/zwave_js/test_sensor.py
@@ -179,7 +179,7 @@ async def test_energy_sensors(
     state = hass.states.get(ENERGY_SENSOR)
 
     assert state
-    assert state.state == "0.16"
+    assert state.state == "0.164"
     assert state.attributes[ATTR_UNIT_OF_MEASUREMENT] == UnitOfEnergy.KILO_WATT_HOUR
     assert state.attributes[ATTR_DEVICE_CLASS] == SensorDeviceClass.ENERGY
     assert state.attributes[ATTR_STATE_CLASS] is SensorStateClass.TOTAL_INCREASING
@@ -187,7 +187,7 @@ async def test_energy_sensors(
     state = hass.states.get(VOLTAGE_SENSOR)
 
     assert state
-    assert state.state == "122.96"
+    assert state.state == "122.963"
     assert state.attributes[ATTR_UNIT_OF_MEASUREMENT] == UnitOfElectricPotential.VOLT
     assert state.attributes[ATTR_DEVICE_CLASS] == SensorDeviceClass.VOLTAGE