diff --git a/Classes/EelHelpers/AbstractImageSourceHelper.php b/Classes/EelHelpers/AbstractImageSourceHelper.php
index 2daffc2..c1a8891 100644
--- a/Classes/EelHelpers/AbstractImageSourceHelper.php
+++ b/Classes/EelHelpers/AbstractImageSourceHelper.php
@@ -76,7 +76,7 @@ public function widthSrcset(array $widthSet): string
         if ($this instanceof ScalableImageSourceHelperInterface) {
             $srcsetArray = [];
             foreach ($widthSet as $targetWidth) {
-                $scaleFactor = $targetWidth / $this->getWidth();
+                $scaleFactor = $targetWidth / $this->getCurrentWidth();
                 $scaled = $this->scale($scaleFactor);
                 $srcsetArray[] = $scaled->src() . ' ' . $targetWidth . 'w';
             }
diff --git a/Classes/EelHelpers/AssetImageSourceHelper.php b/Classes/EelHelpers/AssetImageSourceHelper.php
index 58adf64..9b70b34 100644
--- a/Classes/EelHelpers/AssetImageSourceHelper.php
+++ b/Classes/EelHelpers/AssetImageSourceHelper.php
@@ -111,4 +111,27 @@ public function src(): string
 
         return $thumbnailData['src'];
     }
+
+    public function getCurrentWidth() : int
+    {
+        if ($this->targetWidth) {
+            return $this->targetWidth;
+        } elseif ($this->targetHeight) {
+            return round($this->targetHeight * $this->asset->getWidth() / $this->asset->getHeight());
+        } else {
+            return $this->baseWidth;
+        }
+    }
+
+
+    public function getCurrentHeight() : int
+    {
+        if ($this->targetHeight) {
+            return $this->targetHeight;
+        } elseif ($this->targetWidth) {
+            return round($this->targetWidth *  $this->asset->getHeight() / $this->asset->getWidth());
+        } else {
+            return $this->baseHeight;
+        }
+    }
 }
diff --git a/Classes/EelHelpers/DummyImageSourceHelper.php b/Classes/EelHelpers/DummyImageSourceHelper.php
index 4881146..eaf5050 100644
--- a/Classes/EelHelpers/DummyImageSourceHelper.php
+++ b/Classes/EelHelpers/DummyImageSourceHelper.php
@@ -85,17 +85,17 @@ public function src(): string
     {
         $uri = $this->baseUri . '?' . http_build_query (
             [
-                'width' => $this->getWidth(),
-                'height' => $this->getHeight(),
+                'width' => $this->getCurrentWidth(),
+                'height' => $this->getCurrentHeight(),
                 'backgroundColor' => ($this->backgroundColor ?: '000'),
                 'foregroundColor' => ($this->foregroundColor ?: 'fff'),
-                'text' => ($this->text ?: $this->getWidth() . ' x ' . $this->getHeight())
+                'text' => ($this->text ?: $this->getCurrentWidth() . ' x ' . $this->getCurrentHeight())
             ]
         );
         return $uri;
     }
 
-    public function getWidth() : int
+    public function getCurrentWidth() : int
     {
         if ($this->targetWidth) {
             return $this->targetWidth;
@@ -107,7 +107,7 @@ public function getWidth() : int
     }
 
 
-    public function getHeight() : int
+    public function getCurrentHeight() : int
     {
         if ($this->targetHeight) {
             return $this->targetHeight;
diff --git a/Classes/EelHelpers/ScalableImageSourceHelperInterface.php b/Classes/EelHelpers/ScalableImageSourceHelperInterface.php
index d50519e..24cef97 100644
--- a/Classes/EelHelpers/ScalableImageSourceHelperInterface.php
+++ b/Classes/EelHelpers/ScalableImageSourceHelperInterface.php
@@ -4,4 +4,8 @@
 interface ScalableImageSourceHelperInterface extends ImageSourceHelperInterface
 {
     public function scale(float $factor): ImageSourceHelperInterface;
+
+    public function getCurrentWidth() : int;
+
+    public function getCurrentHeight() : int;
 }