Denmark has approximately 900 streams with outlet to the sea. Almost half are less than 5 kilometres (3.1 mi) long. 52 of them are over 25 kilometres (16 mi) long and 17 are over 50 kilometres (31 mi) long.[1]
The longest river isGudenå with 156.3 kilometres (97.1 mi) whileSkjern Å has the largest discharge at the mouth with on average 30 cubic metres per second (1,100 cu ft/s).[2]
The rivers longer than 50 kilometres (31 mi) are:
| Number | Stream | Length | Included lakes | Measured through the tributaries | Located on | |
|---|---|---|---|---|---|---|
| km | mi | |||||
| 1 | Gudenå | 156.3 | 97.1 | Bredvad Sø,Mossø, Gudensø, Ry Mølle Sø, Lillesø, Birksø, Julsø, Borre Sø, Brassø, Langsø, Sminge Sø,Tange Sø | Jutland | |
| 2 | Skjern Å | 104.1 | 64.7 | Rørbæk Sø, Nedersø, Kulsø, Hastrup Sø, MES | Jutland | |
| 3 | Storå | 101.7 | 63.2 | Holstebro Vandkraftsø | Jutland | |
| 4 | Karup Å | 92.8 | 57.7 | Skygge Å/Elbæk | Jutland | |
| 5 | Varde Å | 90.5 | 56.2 | Grindsted Å/Vandel Bæk | Jutland | |
| 6 | Suså | 86.5 | 53.7 | Tystrup/Bavelse Sø | Zealand | |
| 7 | Odense Å | 81.8 | 50.8 | Hågerup Å (29.7 km (18.5 mi)) | Funen | |
| 8 | Vidå | 80.2 | 49.8 | Sønderå/Bjerndrup Mølleå | Jutland | |
| 9 | Ribe Å | 76.5 | 47.5 | Gram Å/Nørreå/Fovs Å | Jutland | |
| 10 | Halleby Å | 65.5 | 40.7 | Tissø | Tysinge Å | Zealand |
| 11 | Rye Å | 64.2 | 39.9 | Hellum Bæk | Jutland | |
| 12 | Kongeå | 63.6 | 39.5 | (72.3 km (44.9 mi) if measured via Gesten Å) | Jutland | |
| 13 | Uggerby Å | 60.6 | 37.7 | Møllebæk | Jutland | |
| 14 | Brede Å | 54.4 | 33.8 | Fiskbæk | Jutland | |
| 15 | Skals Å | 54.1 | 33.6 | Kousted Å | Jutland | |
| 16 | Simested Å | 51.4 | 31.9 | Jutland | ||
| 17 | Lindenborg Å | 50.2 | 31.2 | Jutland | ||
