diff --git a/homeassistant/components/waze_travel_time/const.py b/homeassistant/components/waze_travel_time/const.py
index 37278543dfb..50384e79d92 100644
--- a/homeassistant/components/waze_travel_time/const.py
+++ b/homeassistant/components/waze_travel_time/const.py
@@ -1,6 +1,4 @@
 """Constants for waze_travel_time."""
-from homeassistant.const import CONF_UNIT_SYSTEM_IMPERIAL, CONF_UNIT_SYSTEM_METRIC
-
 DOMAIN = "waze_travel_time"
 
 CONF_DESTINATION = "destination"
@@ -21,7 +19,9 @@ DEFAULT_AVOID_TOLL_ROADS = False
 DEFAULT_AVOID_SUBSCRIPTION_ROADS = False
 DEFAULT_AVOID_FERRIES = False
 
-UNITS = [CONF_UNIT_SYSTEM_METRIC, CONF_UNIT_SYSTEM_IMPERIAL]
+IMPERIAL_UNITS = "imperial"
+METRIC_UNITS = "metric"
+UNITS = [METRIC_UNITS, IMPERIAL_UNITS]
 
 REGIONS = ["US", "NA", "EU", "IL", "AU"]
 VEHICLE_TYPES = ["car", "taxi", "motorcycle"]
diff --git a/homeassistant/components/waze_travel_time/sensor.py b/homeassistant/components/waze_travel_time/sensor.py
index 66ee5376266..c4ff489cadf 100644
--- a/homeassistant/components/waze_travel_time/sensor.py
+++ b/homeassistant/components/waze_travel_time/sensor.py
@@ -16,8 +16,6 @@ from homeassistant.const import (
     ATTR_ATTRIBUTION,
     CONF_NAME,
     CONF_REGION,
-    CONF_UNIT_SYSTEM_IMPERIAL,
-    CONF_UNIT_SYSTEM_METRIC,
     EVENT_HOMEASSISTANT_STARTED,
     LENGTH_KILOMETERS,
     LENGTH_MILES,
@@ -49,6 +47,8 @@ from .const import (
     DEFAULT_REALTIME,
     DEFAULT_VEHICLE_TYPE,
     DOMAIN,
+    IMPERIAL_UNITS,
+    METRIC_UNITS,
 )
 
 _LOGGER = logging.getLogger(__name__)
@@ -65,13 +65,13 @@ async def async_setup_entry(
     defaults = {
         CONF_REALTIME: DEFAULT_REALTIME,
         CONF_VEHICLE_TYPE: DEFAULT_VEHICLE_TYPE,
-        CONF_UNITS: CONF_UNIT_SYSTEM_METRIC,
+        CONF_UNITS: METRIC_UNITS,
         CONF_AVOID_FERRIES: DEFAULT_AVOID_FERRIES,
         CONF_AVOID_SUBSCRIPTION_ROADS: DEFAULT_AVOID_SUBSCRIPTION_ROADS,
         CONF_AVOID_TOLL_ROADS: DEFAULT_AVOID_TOLL_ROADS,
     }
     if hass.config.units is IMPERIAL_SYSTEM:
-        defaults[CONF_UNITS] = CONF_UNIT_SYSTEM_IMPERIAL
+        defaults[CONF_UNITS] = IMPERIAL_UNITS
 
     if not config_entry.options:
         new_data = config_entry.data.copy()
@@ -248,7 +248,7 @@ class WazeTravelTimeData:
 
                 self.duration, distance = routes[route]
 
-                if units == CONF_UNIT_SYSTEM_IMPERIAL:
+                if units == IMPERIAL_UNITS:
                     # Convert to miles.
                     self.distance = DistanceConverter.convert(
                         distance, LENGTH_KILOMETERS, LENGTH_MILES