diff --git a/app/code/Magento/CatalogInventory/Api/StockConfigurationInterface.php b/app/code/Magento/CatalogInventory/Api/StockConfigurationInterface.php
index 767625e9f3489..a23d5030b8242 100644
--- a/app/code/Magento/CatalogInventory/Api/StockConfigurationInterface.php
+++ b/app/code/Magento/CatalogInventory/Api/StockConfigurationInterface.php
@@ -77,7 +77,7 @@ public function getEnableQtyIncrements($storeId = null);
 
     /**
      * @param int $storeId
-     * @return int
+     * @return float
      */
     public function getQtyIncrements($store = null);
 
diff --git a/app/code/Magento/CatalogInventory/Model/Configuration.php b/app/code/Magento/CatalogInventory/Model/Configuration.php
index 06cfde0b7d247..2f0415b40dc01 100644
--- a/app/code/Magento/CatalogInventory/Model/Configuration.php
+++ b/app/code/Magento/CatalogInventory/Model/Configuration.php
@@ -273,7 +273,7 @@ public function getEnableQtyIncrements($store = null)
 
     /**
      * @param null|string|bool|int|\Magento\Store\Model\Store $store
-     * @return int
+     * @return float
      */
     public function getQtyIncrements($store = null)
     {
diff --git a/app/code/Magento/CatalogInventory/Model/Stock/Item.php b/app/code/Magento/CatalogInventory/Model/Stock/Item.php
index b4b70041ce148..bcab2c622a5bc 100644
--- a/app/code/Magento/CatalogInventory/Model/Stock/Item.php
+++ b/app/code/Magento/CatalogInventory/Model/Stock/Item.php
@@ -392,7 +392,7 @@ public function getUseConfigQtyIncrements()
     /**
      * Retrieve Quantity Increments
      *
-     * @return int|false
+     * @return int|float|false
      */
     public function getQtyIncrements()
     {
@@ -401,7 +401,13 @@ public function getQtyIncrements()
                 if ($this->getUseConfigQtyIncrements()) {
                     $this->qtyIncrements = $this->stockConfiguration->getQtyIncrements($this->getStoreId());
                 } else {
-                    $this->qtyIncrements = (int) $this->getData(static::QTY_INCREMENTS);
+                    $this->qtyIncrements = $this->getData(static::QTY_INCREMENTS);
+                }
+
+                if ($this->getIsQtyDecimal()) { // Cast accordingly to decimal qty usage
+                    $this->qtyIncrements = (float) $this->qtyIncrements;
+                } else {
+                    $this->qtyIncrements = (int) $this->qtyIncrements;
                 }
             }
             if ($this->qtyIncrements <= 0) {
diff --git a/app/code/Magento/CatalogInventory/Test/Unit/Model/Stock/ItemTest.php b/app/code/Magento/CatalogInventory/Test/Unit/Model/Stock/ItemTest.php
index bbc7823b13e01..e63a573b2f3a4 100644
--- a/app/code/Magento/CatalogInventory/Test/Unit/Model/Stock/ItemTest.php
+++ b/app/code/Magento/CatalogInventory/Test/Unit/Model/Stock/ItemTest.php
@@ -394,6 +394,7 @@ public function testGetQtyIncrements($config, $expected)
         $this->setDataArrayValue('qty_increments', $config['qty_increments']);
         $this->setDataArrayValue('enable_qty_increments', $config['enable_qty_increments']);
         $this->setDataArrayValue('use_config_qty_increments', $config['use_config_qty_increments']);
+        $this->setDataArrayValue('is_qty_decimal', $config['is_qty_decimal']);
         if ($config['use_config_qty_increments']) {
             $this->stockConfiguration->expects($this->once())
                 ->method('getQtyIncrements')
@@ -415,7 +416,26 @@ public function getQtyIncrementsDataProvider()
                 [
                     'qty_increments' => 1,
                     'enable_qty_increments' => true,
-                    'use_config_qty_increments' => true
+                    'use_config_qty_increments' => true,
+                    'is_qty_decimal' => false,
+                ],
+                1
+            ],
+            [
+                [
+                    'qty_increments' => 1.5,
+                    'enable_qty_increments' => true,
+                    'use_config_qty_increments' => true,
+                    'is_qty_decimal' => true,
+                ],
+                1.5
+            ],
+            [
+                [
+                    'qty_increments' => 1.5,
+                    'enable_qty_increments' => true,
+                    'use_config_qty_increments' => true,
+                    'is_qty_decimal' => false,
                 ],
                 1
             ],
@@ -423,7 +443,8 @@ public function getQtyIncrementsDataProvider()
                 [
                     'qty_increments' => -2,
                     'enable_qty_increments' => true,
-                    'use_config_qty_increments' => true
+                    'use_config_qty_increments' => true,
+                    'is_qty_decimal' => false,
                 ],
                 false
             ],
@@ -431,7 +452,8 @@ public function getQtyIncrementsDataProvider()
                 [
                     'qty_increments' => 3,
                     'enable_qty_increments' => true,
-                    'use_config_qty_increments' => false
+                    'use_config_qty_increments' => false,
+                    'is_qty_decimal' => false,
                 ],
                 3
             ],
diff --git a/app/code/Magento/CatalogInventory/view/adminhtml/ui_component/product_form.xml b/app/code/Magento/CatalogInventory/view/adminhtml/ui_component/product_form.xml
index 3472f4368d617..64015e87e7d99 100644
--- a/app/code/Magento/CatalogInventory/view/adminhtml/ui_component/product_form.xml
+++ b/app/code/Magento/CatalogInventory/view/adminhtml/ui_component/product_form.xml
@@ -568,7 +568,6 @@
                     <settings>
                         <scopeLabel>[GLOBAL]</scopeLabel>
                         <validation>
-                            <rule name="validate-digits" xsi:type="boolean">true</rule>
                             <rule name="validate-number" xsi:type="boolean">true</rule>
                         </validation>
                         <label translate="true">Qty Increments</label>