diff --git a/delivery_schenker/models/delivery_carrier.py b/delivery_schenker/models/delivery_carrier.py
index c120091301..74fbdcdf07 100644
--- a/delivery_schenker/models/delivery_carrier.py
+++ b/delivery_schenker/models/delivery_carrier.py
@@ -5,7 +5,7 @@
 
 from odoo import _, api, fields, models
 from odoo.exceptions import UserError
-from odoo.tools import float_compare, float_round
+from odoo.tools import float_compare, float_repr, float_round
 
 from .schenker_request import SchenkerRequest
 
@@ -359,12 +359,22 @@ def _schenker_shipping_information_package_volume(self, picking, package):
             ]
         )
 
+    def _float_round_repr(self, value, precision_digits, rounding_method="UP"):
+        return float_repr(
+            float_round(
+                value,
+                precision_digits=precision_digits,
+                rounding_method=rounding_method,
+            ),
+            precision_digits=precision_digits,
+        )
+
     def _schenker_shipping_information_round_weight(self, weight, precision_digits=2):
-        return float_round(weight, precision_digits=precision_digits)
+        return self._float_round_repr(weight, precision_digits)
 
     def _schenker_shipping_information_round_volume(self, volume, precision_digits=2):
         """The schenker api requires 2 decimal points"""
-        return float_round(volume, precision_digits=precision_digits)
+        return self._float_round_repr(volume, precision_digits)
 
     def _schenker_shipping_information_package(self, picking, package):
         weight = package.shipping_weight or package.weight
@@ -449,20 +459,16 @@ def _schenker_measures(self, picking, vals):
         :returns dict values for the proper unit key and value
         """
         if self.schenker_measure_unit == "VOLUME":
-            return {
-                "measureUnitVolume": self._schenker_shipping_information_round_volume(
-                    vals["shippingInformation"]["volume"]
-                )
-            }
+            return {"measureUnitVolume": vals["shippingInformation"]["volume"]}
         return {}
 
     def _schenker_get_total_shipping_volume(self, shipping_information):
-        volume = sum(info["volume"] for info in shipping_information)
+        volume = sum(float(info["volume"]) for info in shipping_information)
         if float_compare(volume, 0, 3) <= 0:
             raise UserError(
                 _("There is no volume set on the shipping package information")
             )
-        return volume
+        return self._schenker_shipping_information_round_volume(volume)
 
     def _prepare_schenker_shipping(self, picking):
         """Convert picking values for schenker api
diff --git a/delivery_schenker/tests/common.py b/delivery_schenker/tests/common.py
index 46c97f1580..c00cd66db8 100644
--- a/delivery_schenker/tests/common.py
+++ b/delivery_schenker/tests/common.py
@@ -54,7 +54,7 @@ def setUpClass(cls):
                 "name": "Test product",
                 "type": "product",
                 "weight": 1,
-                "volume": 1,
+                "volume": 1.875,
             }
         )
         cls.sale, cls.picking = cls._create_sale_order(cls)
@@ -132,21 +132,21 @@ def _prepare_schenker_shipping(self, picking, vals=None):
             "incotermLocation": "Test partner",
             "productCode": "CON",
             "measurementType": "METRIC",
-            "grossWeight": 1.0,
+            "grossWeight": "1.00",
             "shippingInformation": {
                 "shipmentPosition": [
                     {
                         "dgr": False,
                         "cargoDesc": picking.name,
-                        "grossWeight": 1.0,
-                        "volume": 1.0,
+                        "grossWeight": "1.00",
+                        "volume": "1.88",
                         "packageType": "CI",
                         "stackable": False,
                         "pieces": 1,
                     }
                 ],
-                "grossWeight": 1.0,
-                "volume": 1.0,
+                "grossWeight": "1.00",
+                "volume": "1.88",
             },
             "measureUnit": "VOLUME",
             "customsClearance": False,
@@ -165,7 +165,7 @@ def _prepare_schenker_shipping(self, picking, vals=None):
             "homeDelivery": True,
             "ownPickup": True,
             "pharmaceuticals": True,
-            "measureUnitVolume": 1.0,
+            "measureUnitVolume": "1.88",
         }
         res.update(vals)
         return res