diff --git a/src/slic3r/GUI/calib_dlg.cpp b/src/slic3r/GUI/calib_dlg.cpp
index c0ca0ae017..88e3f3dd9b 100644
--- a/src/slic3r/GUI/calib_dlg.cpp
+++ b/src/slic3r/GUI/calib_dlg.cpp
@@ -67,7 +67,7 @@ std::vector<wxString> make_shaper_type_labels()
 }
 
 PA_Calibration_Dlg::PA_Calibration_Dlg(wxWindow* parent, wxWindowID id, Plater* plater)
-    : DPIDialog(parent, id, _L("PA Calibration"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE), m_plater(plater)
+    : DPIDialog(parent, id, _L("PA Calibration"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE), m_plater(plater)
 {
     SetBackgroundColour(*wxWHITE); // make sure background color set for dialog
     SetForegroundColour(wxColour("#363636"));
@@ -328,7 +328,7 @@ enum FILAMENT_TYPE : int
 };
 
 Temp_Calibration_Dlg::Temp_Calibration_Dlg(wxWindow* parent, wxWindowID id, Plater* plater)
-    : DPIDialog(parent, id, _L("Temperature calibration"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE), m_plater(plater)
+    : DPIDialog(parent, id, _L("Temperature calibration"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE), m_plater(plater)
 {
     SetBackgroundColour(*wxWHITE); // make sure background color set for dialog
     SetForegroundColour(wxColour("#363636"));
@@ -518,7 +518,7 @@ void Temp_Calibration_Dlg::on_dpi_changed(const wxRect& suggested_rect) {
 //
 
 MaxVolumetricSpeed_Test_Dlg::MaxVolumetricSpeed_Test_Dlg(wxWindow* parent, wxWindowID id, Plater* plater)
-    : DPIDialog(parent, id, _L("Max volumetric speed test"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE), m_plater(plater)
+    : DPIDialog(parent, id, _L("Max volumetric speed test"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE), m_plater(plater)
 {
     SetBackgroundColour(*wxWHITE); // make sure background color set for dialog
     SetForegroundColour(wxColour("#363636"));
@@ -622,7 +622,7 @@ void MaxVolumetricSpeed_Test_Dlg::on_dpi_changed(const wxRect& suggested_rect) {
 //
 
 VFA_Test_Dlg::VFA_Test_Dlg(wxWindow* parent, wxWindowID id, Plater* plater)
-    : DPIDialog(parent, id, _L("VFA test"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE)
+    : DPIDialog(parent, id, _L("VFA test"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE)
     , m_plater(plater)
 {
     SetBackgroundColour(*wxWHITE); // make sure background color set for dialog
@@ -731,7 +731,7 @@ void VFA_Test_Dlg::on_dpi_changed(const wxRect& suggested_rect)
 //
 
 Retraction_Test_Dlg::Retraction_Test_Dlg(wxWindow* parent, wxWindowID id, Plater* plater)
-    : DPIDialog(parent, id, _L("Retraction test"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE), m_plater(plater)
+    : DPIDialog(parent, id, _L("Retraction test"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE), m_plater(plater)
 {
     SetBackgroundColour(*wxWHITE); // make sure background color set for dialog
     SetForegroundColour(wxColour("#363636"));
@@ -836,7 +836,7 @@ void Retraction_Test_Dlg::on_dpi_changed(const wxRect& suggested_rect) {
 //
 
 Input_Shaping_Freq_Test_Dlg::Input_Shaping_Freq_Test_Dlg(wxWindow* parent, wxWindowID id, Plater* plater)
-    : DPIDialog(parent, id, _L("Input shaping Frequency test"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE), m_plater(plater)
+    : DPIDialog(parent, id, _L("Input shaping Frequency test"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE), m_plater(plater)
 {
     SetBackgroundColour(*wxWHITE); // make sure background color set for dialog
     SetForegroundColour(wxColour("#363636"));
@@ -1053,7 +1053,7 @@ void Input_Shaping_Freq_Test_Dlg::on_dpi_changed(const wxRect& suggested_rect) {
 //
 
 Input_Shaping_Damp_Test_Dlg::Input_Shaping_Damp_Test_Dlg(wxWindow* parent, wxWindowID id, Plater* plater)
-    : DPIDialog(parent, id, _L("Input shaping Damp test"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE), m_plater(plater)
+    : DPIDialog(parent, id, _L("Input shaping Damp test"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE), m_plater(plater)
 {
     SetBackgroundColour(*wxWHITE); // make sure background color set for dialog
     SetForegroundColour(wxColour("#363636"));
@@ -1246,7 +1246,7 @@ void Input_Shaping_Damp_Test_Dlg::on_dpi_changed(const wxRect& suggested_rect) {
 //
 
 Cornering_Test_Dlg::Cornering_Test_Dlg(wxWindow* parent, wxWindowID id, Plater* plater)
-    : DPIDialog(parent, id, _L("Cornering test"), wxDefaultPosition, parent->FromDIP(wxSize(-1, 280)), wxDEFAULT_DIALOG_STYLE), m_plater(plater)
+    : DPIDialog(parent, id, _L("Cornering test"), wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE), m_plater(plater)
 {
     SetBackgroundColour(*wxWHITE); // make sure background color set for dialog
     SetForegroundColour(wxColour("#363636"));