| length km | river | % Correct |
|---|---|---|
| 1048 | Rhine | 99%
|
| 2811 | Danube | 96%
|
| 1094 | Elbe | 94%
|
| 524 | Main | 85%
|
| 866 | Oder | 78%
|
| 382 | Spree | 75%
|
| 452 | Weser | 75%
|
| 517 | Inn | 71%
|
| 545 | Moselle | 69%
|
| 286 | Isar | 67%
|
| 219 | Ruhr | 63%
|
| 367 | Neckar | 57%
|
| 227 | Saar | 57%
|
| 371 | Ems | 56%
|
| 325 | Havel | 55%
|
| 413 | Saale | 50%
|
| 218 | Fulda | 47%
|
| 292 | Werra | 39%
|
| 191 | Regen | 37%
|
| 220 | Lippe | 36%
|
| 264 | Lech | 35%
|
| 117 | Wupper | 33%
|
| 246 | Lahn | 32%
|
| 281 | Leine | 29%
|
| 260 | Aller | 26%
|
| 124 | Trave | 22%
|
| 49 | Dreisam | 17%
|