| Longueur | Embouchure | Cours d'eau | % Correct |
|---|---|---|---|
| 323 km | Rhône | Durance | 75%
|
| 308 km | Océan Atlantique | Adour | 67%
|
| 217 km | Rhin | Ill | 44%
|
| 191 km | Adour | Gave de Pau | 41%
|
| 167 km | Durance | Verdon | 29%
|
| 211 km | Dordogne | Vézère | 29%
|
| 255 km | Dordogne | Isle | 27%
|
| 164 km | Allier | Sioule | 20%
|
| 188 km | Garonne | Baïse | 19%
|
| 205 km | Creuse | Gartempe | 18%
|
| 167 km | Lot | Truyère | 18%
|
| 214 km | Saône | Ognon | 16%
|
| 194 km | Tarn | Agout | 14%
|
| 202 km | Yonne | Armançon | 14%
|
| 201 km | Isle | Dronne | 13%
|
| 165 km | Sarthe | Huisne | 13%
|
| 184 km | Cher | Sauldre | 9%
|
| 188 km | Yonne | Serein | 9%
|
| 168 km | Aveyron | Viaur | 9%
|
| 155 km | Adour | Luy | 4%
|