Get font width/height in pixels
This example gets Form.Font width and height. Use TextWidth and TextHeight methods of TCanvas type.
procedure TForm1.Button1Click(Sender: TObject); begin Label1.Caption:='Width is '+ IntToStr(Form1.Canvas.TextWidth(Edit1.Text))+ ' pixels'; Label2.Caption:='Height is '+ IntToStr(Form1.Canvas.TextHeight(Edit1.Text))+ ' pixels';; end;