diff --git a/source/blender/editors/screen/screen_ops.cc b/source/blender/editors/screen/screen_ops.cc
index 0da0d08ff35..37de7c816ae 100644
--- a/source/blender/editors/screen/screen_ops.cc
+++ b/source/blender/editors/screen/screen_ops.cc
@@ -3841,8 +3841,15 @@ static AreaDockTarget area_docking_target(sAreaJoinData *jd, const wmEvent *even
   }
 
   /* Convert to local coordinates in sa2. */
-  const int x = event->xy[0] + jd->win1->posx - jd->win2->posx - jd->sa2->totrct.xmin;
-  const int y = event->xy[1] + jd->win1->posy - jd->win2->posy - jd->sa2->totrct.ymin;
+  int win1_posx = jd->win1->posx;
+  int win1_posy = jd->win1->posy;
+  int win2_posx = jd->win2->posx;
+  int win2_posy = jd->win2->posy;
+  WM_window_pixels_coords(jd->win1, &win1_posx, &win1_posy);
+  WM_window_pixels_coords(jd->win2, &win2_posx, &win2_posy);
+
+  const int x = event->xy[0] + win1_posx - win2_posx - jd->sa2->totrct.xmin;
+  const int y = event->xy[1] + win1_posy - win2_posy - jd->sa2->totrct.ymin;
 
   const float fac_x = float(x) / float(jd->sa2->winx);
   const float fac_y = float(y) / float(jd->sa2->winy);
diff --git a/source/blender/windowmanager/WM_api.hh b/source/blender/windowmanager/WM_api.hh
index a604c9ed5a0..943bcd5955d 100644
--- a/source/blender/windowmanager/WM_api.hh
+++ b/source/blender/windowmanager/WM_api.hh
@@ -275,6 +275,7 @@ bool WM_window_pixels_read_sample(bContext *C, wmWindow *win, const int pos[2],
  */
 int WM_window_pixels_x(const wmWindow *win);
 int WM_window_pixels_y(const wmWindow *win);
+void WM_window_pixels_coords(const wmWindow *win, int *x, int *y);
 /**
  * Get boundaries usable by all window contents, including global areas.
  */
diff --git a/source/blender/windowmanager/intern/wm_window.cc b/source/blender/windowmanager/intern/wm_window.cc
index 11735749d3c..63ac1d0e7ec 100644
--- a/source/blender/windowmanager/intern/wm_window.cc
+++ b/source/blender/windowmanager/intern/wm_window.cc
@@ -2672,15 +2672,23 @@ void WM_cursor_warp(wmWindow *win, int x, int y)
 
 int WM_window_pixels_x(const wmWindow *win)
 {
-  float f = GHOST_GetNativePixelSize(static_cast<GHOST_WindowHandle>(win->ghostwin));
+  const float fac = GHOST_GetNativePixelSize(static_cast<GHOST_WindowHandle>(win->ghostwin));
 
-  return int(f * float(win->sizex));
+  return int(fac * float(win->sizex));
 }
 int WM_window_pixels_y(const wmWindow *win)
 {
-  float f = GHOST_GetNativePixelSize(static_cast<GHOST_WindowHandle>(win->ghostwin));
+  const float fac = GHOST_GetNativePixelSize(static_cast<GHOST_WindowHandle>(win->ghostwin));
 
-  return int(f * float(win->sizey));
+  return int(fac * float(win->sizey));
+}
+
+void WM_window_pixels_coords(const wmWindow *win, int *x, int *y)
+{
+  const float fac = GHOST_GetNativePixelSize(static_cast<GHOST_WindowHandle>(win->ghostwin));
+
+  *x *= fac;
+  *y *= fac;
 }
 
 void WM_window_rect_calc(const wmWindow *win, rcti *r_rect)