diff --git a/server/backend/adapters/postgres/reading_repository.py b/server/backend/adapters/postgres/reading_repository.py
index 2c6caba..4d2f556 100644
--- a/server/backend/adapters/postgres/reading_repository.py
+++ b/server/backend/adapters/postgres/reading_repository.py
@@ -17,7 +17,7 @@ _GRANULARITY_DELTA = {
     "week": relativedelta(weeks=1),
     "month": relativedelta(months=1),
 }
-
+PULSE_CONVERSION_FACTOR = 0.010
 
 class PgReadingQueryRepository(ReadingQueryRepository):
     def get_consumption(
@@ -65,14 +65,13 @@ class PgReadingQueryRepository(ReadingQueryRepository):
                 pulse_count_start=row[1],
                 pulse_count_end=row[2],
                 delta_pulses=row[3],
-                delta_m3=round(row[3] * 0.010, 3),
+                delta_m3=round(row[3] * PULSE_CONVERSION_FACTOR, 3),
             )
             for row in rows
             if row[1] is not None
         ]
 
 
-
 class PgReadingRepository(ReadingRepository):
     def insert_reading(self, device_id: str, pulse_count: int) -> None:
         try:
@@ -88,4 +87,4 @@ class PgReadingRepository(ReadingRepository):
         except psycopg2.DatabaseError as e:
             raise DatabaseError(
                 f"Erreur d'enregistrement de la télérelève sur le device {device_id}"
-            ) from e
\ No newline at end of file
+            ) from e