diff --git a/lib/data/models/task_model.dart b/lib/data/models/task_model.dart
index ecfec9abc..da9dfb733 100644
--- a/lib/data/models/task_model.dart
+++ b/lib/data/models/task_model.dart
@@ -251,7 +251,7 @@ abstract class TaskEntity extends Object
   }
 
   double calculateAmount(double taskRate) =>
-      taskRate * calculateDuration.inSeconds / 3600;
+      taskRate * round(calculateDuration.inSeconds / 3600, 3);
 
   Duration get calculateDuration {
     int seconds = 0;
diff --git a/lib/redux/task/task_selectors.dart b/lib/redux/task/task_selectors.dart
index 38eaf58a0..18aa6eca6 100644
--- a/lib/redux/task/task_selectors.dart
+++ b/lib/redux/task/task_selectors.dart
@@ -27,7 +27,7 @@ InvoiceItemEntity convertTaskToInvoiceItem(
     ..notes = notes
     ..cost = taskRateSelector(
         company: state.selectedCompany, project: project, client: client)
-    ..qty = round(task.duration / (60 * 60), 2));
+    ..qty = round(task.duration / 3600, 3));
 }
 
 var memoizedTaskList = memo2(