diff --git a/homeassistant/components/sonos/media_player.py b/homeassistant/components/sonos/media_player.py
index d4ecc5cf05be..a47c05a735a4 100644
--- a/homeassistant/components/sonos/media_player.py
+++ b/homeassistant/components/sonos/media_player.py
@@ -305,7 +305,7 @@ class SonosMediaPlayerEntity(SonosEntity, MediaPlayerEntity):
     @soco_error()
     def set_volume_level(self, volume: float) -> None:
         """Set volume level, range 0..1."""
-        self.soco.volume = int(volume * 100)
+        self.soco.volume = int(round(volume * 100))
 
     @soco_error(UPNP_ERRORS_TO_IGNORE)
     def set_shuffle(self, shuffle: bool) -> None:
diff --git a/tests/components/sonos/test_media_player.py b/tests/components/sonos/test_media_player.py
index d606d179487f..9f7871827fe2 100644
--- a/tests/components/sonos/test_media_player.py
+++ b/tests/components/sonos/test_media_player.py
@@ -1103,11 +1103,11 @@ async def test_volume(
     await hass.services.async_call(
         MP_DOMAIN,
         SERVICE_VOLUME_SET,
-        {ATTR_ENTITY_ID: "media_player.zone_a", ATTR_MEDIA_VOLUME_LEVEL: 0.30},
+        {ATTR_ENTITY_ID: "media_player.zone_a", ATTR_MEDIA_VOLUME_LEVEL: 0.57},
         blocking=True,
     )
     # SoCo uses 0..100 for its range.
-    assert soco.volume == 30
+    assert soco.volume == 57
 
 
 @pytest.mark.parametrize(