diff --git a/src/graphic/QskGraphic.cpp b/src/graphic/QskGraphic.cpp
index e47570fb..e893ac18 100644
--- a/src/graphic/QskGraphic.cpp
+++ b/src/graphic/QskGraphic.cpp
@@ -578,6 +578,24 @@ QSizeF QskGraphic::defaultSize() const
     return boundingRect().size();
 }
 
+qreal QskGraphic::heightForWidth( qreal width ) const
+{
+    const auto sz = defaultSize();
+    if ( sz.isEmpty() )
+        return 0;
+
+    return sz.height() * width / sz.width();
+}
+
+qreal QskGraphic::widthForHeight( qreal height ) const
+{
+    const auto sz = defaultSize();
+    if ( sz.isEmpty() )
+        return 0;
+
+    return sz.width() * height / sz.height();
+}
+
 void QskGraphic::render( QPainter* painter ) const
 {
     render( painter, QskColorFilter() );
diff --git a/src/graphic/QskGraphic.h b/src/graphic/QskGraphic.h
index 987fa52c..4644079d 100644
--- a/src/graphic/QskGraphic.h
+++ b/src/graphic/QskGraphic.h
@@ -88,6 +88,9 @@ class QSK_EXPORT QskGraphic : public QPaintDevice
     void setDefaultSize( const QSizeF& );
     QSizeF defaultSize() const;
 
+    qreal heightForWidth( qreal width ) const;
+    qreal widthForHeight( qreal height ) const;
+
     void setRenderHint( RenderHint, bool on = true );
     bool testRenderHint( RenderHint ) const;