diff --git a/app/code/Magento/Sales/Model/Order/Item.php b/app/code/Magento/Sales/Model/Order/Item.php
index da2a06c2db25a..d2f5f5ce56692 100644
--- a/app/code/Magento/Sales/Model/Order/Item.php
+++ b/app/code/Magento/Sales/Model/Order/Item.php
@@ -233,7 +233,7 @@ public function getQtyToShip()
     public function getSimpleQtyToShip()
     {
         $qty = $this->getQtyOrdered() - $this->getQtyShipped() - $this->getQtyRefunded() - $this->getQtyCanceled();
-        return max($qty, 0);
+        return max(round($qty, 8), 0);
     }
 
     /**
@@ -248,7 +248,7 @@ public function getQtyToInvoice()
         }
 
         $qty = $this->getQtyOrdered() - $this->getQtyInvoiced() - $this->getQtyCanceled();
-        return max($qty, 0);
+        return max(round($qty, 8), 0);
     }
 
     /**
diff --git a/app/code/Magento/Sales/Test/Unit/Model/Order/ItemTest.php b/app/code/Magento/Sales/Test/Unit/Model/Order/ItemTest.php
index 03a388410f335..39fffa23dc1ec 100644
--- a/app/code/Magento/Sales/Test/Unit/Model/Order/ItemTest.php
+++ b/app/code/Magento/Sales/Test/Unit/Model/Order/ItemTest.php
@@ -235,4 +235,114 @@ public function getProductOptionsDataProvider()
             ]
         ];
     }
+
+    /**
+     * Test different combinations of item qty setups
+     *
+     * @param array $options
+     * @param float $expectedResult
+     *
+     * @dataProvider getItemQtyVariants
+     */
+    public function testGetSimpleQtyToMethods(array $options, $expectedResult)
+    {
+        $this->model->setData($options);
+        $this->assertSame($this->model->getSimpleQtyToShip(), $expectedResult['to_ship']);
+        $this->assertSame($this->model->getQtyToInvoice(), $expectedResult['to_invoice']);
+    }
+
+    /**
+     * Provides different combinations of qty options for an item and the
+     * expected qtys pending shipment and invoice
+     *
+     * @return array
+     */
+    public function getItemQtyVariants()
+    {
+        return [
+            'empty_item' => [
+                'options' => [
+                    'qty_ordered' => 0, 'qty_invoiced' => 0, 'qty_refunded' => 0, 'qty_shipped' => 0,
+                    'qty_canceled' => 0
+                ],
+                'expectedResult' => ['to_ship' => 0.0, 'to_invoice' => 0.0]
+            ],
+            'ordered_item' => [
+                'options' => [
+                    'qty_ordered' => 12, 'qty_invoiced' => 0, 'qty_refunded' => 0, 'qty_shipped' => 0,
+                    'qty_canceled' => 0
+                ],
+                'expectedResult' => ['to_ship' => 12.0, 'to_invoice' => 12.0]
+            ],
+            'partially_invoiced' => [
+                'options' => ['qty_ordered' => 12, 'qty_invoiced' => 4, 'qty_refunded' => 0, 'qty_shipped' => 0,
+                    'qty_canceled' => 0,
+                ],
+                'expectedResult' => ['to_ship' => 12.0, 'to_invoice' => 8.0]
+            ],
+            'completely_invoiced' => [
+                'options' => [
+                    'qty_ordered' => 12, 'qty_invoiced' => 12, 'qty_refunded' => 0, 'qty_shipped' => 0,
+                    'qty_canceled' => 0,
+                ],
+                'expectedResult' => ['to_ship' => 12.0, 'to_invoice' => 0.0]
+            ],
+            'partially_invoiced_refunded' => [
+                'options' => [
+                    'qty_ordered' => 12, 'qty_invoiced' => 5, 'qty_refunded' => 5, 'qty_shipped' => 0,
+                    'qty_canceled' => 0,
+                ],
+                'expectedResult' => ['to_ship' => 7.0, 'to_invoice' => 7.0]
+            ],
+            'partially_refunded' => [
+                'options' => [
+                    'qty_ordered' => 12, 'qty_invoiced' => 12, 'qty_refunded' => 5, 'qty_shipped' => 0,
+                    'qty_canceled' => 0,
+                ],
+                'expectedResult' => ['to_ship' => 7.0, 'to_invoice' => 0.0]
+            ],
+            'partially_shipped' => [
+                'options' => [
+                    'qty_ordered' => 12, 'qty_invoiced' => 0, 'qty_refunded' => 0, 'qty_shipped' => 4,
+                    'qty_canceled' => 0
+                ],
+                'expectedResult' => ['to_ship' => 8.0, 'to_invoice' => 12.0]
+            ],
+            'partially_refunded_partially_shipped' => [
+                'options' => [
+                    'qty_ordered' => 12, 'qty_invoiced' => 12, 'qty_refunded' => 5, 'qty_shipped' => 4,
+                    'qty_canceled' => 0
+                ],
+                'expectedResult' => ['to_ship' => 3.0, 'to_invoice' => 0.0]
+            ],
+            'complete' => [
+                'options' => [
+                    'qty_ordered' => 12, 'qty_invoiced' => 12, 'qty_refunded' => 0, 'qty_shipped' => 12,
+                    'qty_canceled' => 0
+                ],
+                'expectedResult' => ['to_ship' => 0.0, 'to_invoice' => 0.0]
+            ],
+            'canceled' => [
+                'options' => [
+                    'qty_ordered' => 12, 'qty_invoiced' => 0, 'qty_refunded' => 0, 'qty_shipped' => 0,
+                    'qty_canceled' => 12
+                ],
+                'expectedResult' => ['to_ship' => 0.0, 'to_invoice' => 0.0]
+            ],
+            'completely_shipped_using_decimals' => [
+                'options' => [
+                    'qty_ordered' => 4.4, 'qty_invoiced' => 0.4, 'qty_refunded' => 0.4, 'qty_shipped' => 4,
+                    'qty_canceled' => 0,
+                ],
+                'expectedResult' => ['to_ship' => 0.0, 'to_invoice' => 4.0]
+            ],
+            'completely_invoiced_using_decimals' => [
+                'options' => [
+                    'qty_ordered' => 4.4, 'qty_invoiced' => 4, 'qty_refunded' => 0, 'qty_shipped' => 4,
+                    'qty_canceled' => 0.4
+                ],
+                'expectedResult' => ['to_ship' => 0.0, 'to_invoice' => 0.0]
+            ]
+        ];
+    }
 }