Kaiser [Kaiserin] = Emperor [Empress]

König [Königin] = King [Queen]

Kronprinz [Kronprinzessin] = Crown Prince [Crown Princess]

Prinz [Prinzessin] von Preußen – Prince of Prussia [Princess of Prussia]

Erbgroßherzog [Erbgroßherzogin] = Hereditary Grand Duke [Hereditary Grand Duchess]

Herzog [Herzogin] = Duke [Duchess]

Kurfürst [Kurfürstin] (ranking with Herzog) = Elector [Electress]

The following generally also rank equally with Herzog:

Landgraf [Landgräfin] = Landgrave [Landgravine]

Markgraf [Markgräfin] = Margrave [Margravine]

Pfalzgraf [Pfalzgräfin]= Count Palatine [Countess Palatine]

Fürst [Fürst] (Contrary to general Europe usage, this title ranks lower than the above ranks) = Prince [Princess]

Gefürsteter Graf [Gefürstete Gräfin] = Princely Count (Obsolete) [Princely Countess]

Graf [Gräfin] = Count [Countess]

Burggraf [Burggräfin] = Burgrave [Burgravine]

Freiherr [Freifrau] = Baron [Baroness]

Note: a Freiherr’s daughter is styled: Freiherrin or Freiin  

Baron [Baronin] = Baron (a form peculiar to the Baltic regions) [Baroness]

Note: a Baron’s daughter is styled: Baronesse = Baroness  

Edler Herr [Edle Herrin] (rarely used) = Baron [Baroness]

Herr [Herrin] = Lord [Lady]

Ritter [Frau] = Knight [Dame]

Edler [Edle](a form peculiar to North and Central Germany) = Knight [Dame]