diff --git a/src/services/stocks-mixin.js b/src/services/stocks-mixin.js
index c8badc5..009c85d 100644
--- a/src/services/stocks-mixin.js
+++ b/src/services/stocks-mixin.js
@@ -140,7 +140,7 @@ export default {
             const areas = []
             Object.entries(inventory.values[productId] || {}).forEach(([areaId, areaVal]) => {
               if (areaVal.value !== undefined && areaVal.value !== null) {
-                const value = convertToUnit(areaVal.value, areaVal.unit, product)
+                const value = (areaVal.unit === 'piece' && product.unit === 'piece') ? areaVal.value : convertToUnit(areaVal.value, areaVal.unit, product);
                 productVal ||= 0
                 productVal += value
                 const area = this.$root.getCategory(areaId)
diff --git a/src/views/sessions/SessionInventory.vue b/src/views/sessions/SessionInventory.vue
index 10e48e4..ec68cfd 100644
--- a/src/views/sessions/SessionInventory.vue
+++ b/src/views/sessions/SessionInventory.vue
@@ -65,7 +65,7 @@
       <div class="content">
         <h3 class="mb-4">{{ currentProduct.name }}</h3>
         <!-- Unit -->
-        <div v-if="currentProduct.packaging_convert_to_piece"
+        <div v-if="currentProduct.packaging_convert_to_piece && currentProduct.unit != 'piece'"
              class="d-flex align-items-center mb-4 justify-content-center">
           <RadioButton v-model="inventory.values[currentProduct.id][currentArea.id].unit"
                        id="unit-default" name="unit"