Seine
The Seine is a river in northern France that passes through Paris and flows into the English Channel.
Also known as: Seine River, River Seine
How big is it?
777 km long
Also 482.8 mi
Approximate main-channel length · approximate
Typical recorded range: 770 km to 780 km.
A little perspective
About 1.54 times the mean diameter of Enceladus.
Enceladus: Enceladus is a natural satellite of Saturn, with an icy surface and plumes of water vapour erupting from its south pole.
Measurements, assumptions & sources +
Seine
The Seine is commonly quoted as approximately 777 km from its Burgundy source to the English Channel. Source and channel-centreline conventions affect the total.
Encyclopaedia Britannica — Seine River
The marked approximate main-channel length is calibrated. Unmeasured illustration details are representative.
Enceladus
Rounded mean-radius model of Enceladus. The derived area and volume describe a sphere; surface terrain and flattening are omitted.
NASA JPL — Planetary satellite physical parameters
The marked mean diameter is calibrated. Unmeasured illustration details are representative.
Change your perspective
Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
Why this measurement?
Why we use 777 km
For comparison, this page uses approximate main-channel length. This is labelled approximate; the central value is useful for comparison, while real values or measurement solutions can vary. The recorded range is 770 km to 780 km.
The Seine is commonly quoted as approximately 777 km from its Burgundy source to the English Channel. Source and channel-centreline conventions affect the total.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Seine dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 777 km | 770 km to 780 km | approximate |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · PlacesYarlung Tsangpo Grand Canyon504 kmThe Yarlung Tsangpo Grand Canyon is a deep river gorge in Tibet, following the Yarlung Tsangpo River through the Himalayas.Around the same scale · PlacesRhine1,230 kmThe Rhine is a river in western Europe that flows from the Swiss Alps through several countries to the North Sea.
Nearest higher value · SpaceCeres939.4 kmCeres is a dwarf planet located in the asteroid belt between Mars and Jupiter.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- Encyclopaedia Britannica — Seine RiverApproximately 780 km from source to the English Channel; the atlas uses the commonly quoted 777 km scale.
There’s always another scale
Follow your curiosity.
PlacesRiver Thames346 kmThe River Thames is a major river in southern England that flows through London and empties into the North Sea.PlacesAmazon River6,400 kmThe Amazon River is a major waterway in South America that flows eastward across the continent and drains a vast rainforest basin.
SpaceEnceladus504.2 kmEnceladus is a natural satellite of Saturn, with an icy surface and plumes of water vapour erupting from its south pole.TransportFive-hour drive at 100 km/h500 kmA five-hour drive at a set speed is the distance a vehicle covers in five hours of continuous travel without breaks.
SpaceCharon1,212 kmCharon is a natural satellite of Pluto, composed mainly of rock and water ice.SpaceCeres939.4 kmCeres is a dwarf planet located in the asteroid belt between Mars and Jupiter.
SpaceMimas396.4 kmMimas is an icy moon of Saturn, visually dominated by the large Herschel impact crater.PlacesYarlung Tsangpo Grand Canyon504 kmThe Yarlung Tsangpo Grand Canyon is a deep river gorge in Tibet, following the Yarlung Tsangpo River through the Himalayas.