diff --git a/app.py b/app.py
index 41fdf63..e17c059 100644
--- a/app.py
+++ b/app.py
@@ -2027,6 +2027,27 @@ def crop_receipt():
         return jsonify(success=False, error=str(e))
 
 
+@app.route("/admin/recalculate_filesizes")
+@login_required
+@admin_required
+def recalculate_filesizes():
+    updated = 0
+    not_found = 0
+
+    receipts = Receipt.query.all()
+    for r in receipts:
+        filepath = os.path.join(app.config["UPLOAD_FOLDER"], r.filename)
+        if os.path.exists(filepath):
+            r.filesize = os.path.getsize(filepath)
+            updated += 1
+        else:
+            not_found += 1
+
+    db.session.commit()
+    flash(f"Zaktualizowano rozmiar dla {updated} plików. Nie znaleziono: {not_found}.", "success")
+    return redirect(url_for("admin_receipts", id="all"))
+
+
 @app.route("/healthcheck")
 def healthcheck():
     header_token = request.headers.get("X-Internal-Check")
diff --git a/templates/admin/receipts.html b/templates/admin/receipts.html
index 9ad5357..736a512 100644
--- a/templates/admin/receipts.html
+++ b/templates/admin/receipts.html
@@ -4,7 +4,12 @@
 
 <div class="d-flex justify-content-between align-items-center flex-wrap mb-4">
   <h2 class="mb-2">📸 Wszystkie paragony</h2>
-  <a href="/admin" class="btn btn-outline-secondary">← Powrót do panelu</a>
+  <div>
+    <a href="{{ url_for('recalculate_filesizes') }}" class="btn btn-sm btn-outline-primary me-2">
+      🔄 Przelicz rozmiary plików
+    </a>
+    <a href="/admin" class="btn btn-outline-secondary">← Powrót do panelu</a>
+  </div>
 </div>
 
 <div class="card bg-dark text-white mb-5">