diff --git a/src/Services/ImportExportSystem/PartKeeprImporter/PKImportHelperTrait.php b/src/Services/ImportExportSystem/PartKeeprImporter/PKImportHelperTrait.php
index 1d77d461..ac8e46ca 100644
--- a/src/Services/ImportExportSystem/PartKeeprImporter/PKImportHelperTrait.php
+++ b/src/Services/ImportExportSystem/PartKeeprImporter/PKImportHelperTrait.php
@@ -235,4 +235,27 @@ trait PKImportHelperTrait
         $property->setAccessible(true);
         $property->setValue($entity, $date);
     }
+
+    /**
+     * Gets the SI prefix factor for the given prefix ID.
+     * Used to convert a value from the PartKeepr database to the PartDB database.
+     * @param  array $data
+     * @param  int  $prefix_id
+     * @return float
+     */
+    protected function getSIPrefixFactor(array $data, int $prefix_id): float
+    {
+        if ($prefix_id === 0) {
+            return 1.0;
+        }
+
+        $prefixes = $data['siprefix'];
+        foreach ($prefixes as $prefix) {
+            if ((int) $prefix['id'] === $prefix_id) {
+                return pow((int) $prefix['base'], (int) $prefix['exponent']);
+            }
+        }
+
+        throw new \RuntimeException(sprintf('Could not find SI prefix with ID %s', $prefix_id));
+    }
 }
diff --git a/src/Services/ImportExportSystem/PartKeeprImporter/PKPartImporter.php b/src/Services/ImportExportSystem/PartKeeprImporter/PKPartImporter.php
index 8ba089d3..767f36b4 100644
--- a/src/Services/ImportExportSystem/PartKeeprImporter/PKPartImporter.php
+++ b/src/Services/ImportExportSystem/PartKeeprImporter/PKPartImporter.php
@@ -173,20 +173,20 @@ class PKPartImporter
             $entity->setName($name);
 
             $entity->setValueText($partparameter['stringValue'] ?? '');
-            if ($partparameter['unit_id'] === null) {
+            if ($partparameter['unit_id'] !== null && (int) $partparameter['unit_id'] !== 0) {
                 $entity->setUnit($this->getUnitSymbol($data, (int)$partparameter['unit_id']));
             } else {
                 $entity->setUnit("");
             }
 
-            if ($partparameter['normalizedMinValue'] !== null) {
-                $entity->setValueMin((float) $partparameter['normalizedMinValue']);
+            if ($partparameter['value'] !== null) {
+                $entity->setValueTypical((float) $partparameter['value'] * $this->getSIPrefixFactor($data, (int) $partparameter['siPrefix_id']));
             }
-            if ($partparameter['normalizedValue'] !== null) {
-                $entity->setValueTypical((float) $partparameter['normalizedValue']);
+            if ($partparameter['minimumValue'] !== null) {
+                $entity->setValueMin((float) $partparameter['minimumValue'] * $this->getSIPrefixFactor($data, (int) $partparameter['minSiPrefix_id']));
             }
-            if ($partparameter['normalizedMaxValue'] !== null) {
-                $entity->setValueMax((float) $partparameter['normalizedMaxValue']);
+            if ($partparameter['maximumValue'] !== null) {
+                $entity->setValueMax((float) $partparameter['maximumValue'] * $this->getSIPrefixFactor($data, (int) $partparameter['maxSiPrefix_id']));
             }
 
             $part = $this->em->find(Part::class, (int) $partparameter['part_id']);