diff --git a/src/utils.py b/src/utils.py
index 9034b75..68fcf52 100644
--- a/src/utils.py
+++ b/src/utils.py
@@ -62,3 +62,13 @@ class multi_fragment:
                     end = True
         sol_list.append(n1)
         return sol_list
+
+
+def compute_lenght(solution, dist_matrix):
+    total_length = 0
+    starting_node = solution[0]
+    from_node = starting_node
+    for node in solution[1:]:
+        total_length += dist_matrix[from_node, node]
+        from_node = node
+    return total_length
\ No newline at end of file