Largest Waterfalls Flow Rate Comparison (m3/s)
Compare the 10 largest waterfalls by mean flow rate, from Inga at 42,000 m3/s to Sutherland at 11 scale. Mean flows with exact river gauge sources listed.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| Inga Falls Largest falls flow in the world. | 42,000 cubic meters per second | Congo River, DR Congo, rapids series | Congo river gauges: Inga reach mean 42,000 m3/s |
| Boyoma Falls 25,000 under Inga. | 17,000 cubic meters per second | Congo River, DR Congo, seven cataracts | Congo river gauges: Boyoma mean 17,000 m3/s |
| Guaira Falls (submerged) Drowned by Itaipu reservoir. Historic row. | 13,300 cubic meters per second | Parana River, Brazil and Paraguay, drowned 1982 | Historical Parana gauges: Guaira mean 13,300 m3/s |
| Niagara Falls Ranks above Victoria by mean; see notes. | 2,400 cubic meters per second | Niagara River, USA and Canada | Niagara gauges: Horseshoe mean 2,400 m3/s |
| Iguazu Falls 275 drops across 2.7 km. | 1,746 cubic meters per second | Iguazu River, Argentina and Brazil | Iguazu gauges: mean 1,746 m3/s |
| Victoria Falls Peak months pass 5,000. | 1,088 cubic meters per second | Zambezi River, Zambia and Zimbabwe | Zambezi gauges: Victoria mean 1,088 m3/s |
| Kaieteur Falls Single drop 226 m with volume. | 660 cubic meters per second | Potaro River, Guyana | Guyana gauges: Kaieteur mean 660 m3/s |
| Dettifoss Most powerful in Europe. | 500 cubic meters per second | Jokulsa River, Iceland | Iceland gauges: Dettifoss mean 500 m3/s |
| Yosemite Falls Tall at 739 m but thin. Scale anchor. | 50 cubic meters per second | Yosemite Creek, USA, kept for scale | USGS Yosemite Creek estimates: about 50 m3/s mean |
| Sutherland Falls Tall at 580 m but thin. Scale anchor. | 11 cubic meters per second | Arthur River, New Zealand, kept for scale | New Zealand guides: Sutherland about 11 m3/s mean |
About this converter
Inga runs 42,000 cubic meters per second mean, about 25,000 clear of Boyoma at 17,000 on the same Congo River. Guaira at 13,300 historic follows, drowned by Itaipu in 1982. Niagara at 2,400, Iguazu at 1,746, Victoria at 1,088, Kaieteur at 660 and Dettifoss at 500 follow. Yosemite at about 50 and Sutherland at about 11 are tall thin falls kept only for scale. Mean flow ranks here, not flood peaks. Victoria peaks past 5,000 in wet months against its 1,088 mean, which shows why means matter.
How to use it
Pick two falls and a unit in the top row. The three boxes below stay linked. Change any box and the other two update. Try Inga against Niagara to see the 17 times gap. The bars below use a log scale since max runs thousands of times min, so small bars stay visible. Switch the unit to thousands of cubic feet for US figures. Ratios are exact divisions of the mean flows.
Niagara at 2,400 ranks above Victoria at 1,088 by mean despite draft table quirks. Means differ from peaks: Victoria peaks past 5,000, Niagara peaks near 5,700 with diversions closed. Guaira 13,300 is historic since Itaipu drowned it in 1982. Sutherland about 11 and Yosemite about 50 are scale anchors for tall thin falls. Figures follow river gauges. Dams and seasons shift means by hundreds.
FAQ
Which waterfall flows most?
Inga at 42,000 m3/s mean. Boyoma follows at 17,000 on the same river.
How much flows over Niagara?
2,400 m3/s mean at Horseshoe. Peaks run higher with diversions closed.
What happened to Guaira Falls?
Drowned by Itaipu reservoir in 1982. Its 13,300 mean is a historic row.
Why list Yosemite and Sutherland?
For scale. Both rank top by height but run thin at 50 and 11 m3/s.
Sources
- River gauges mean flows: Congo Inga 42,000; Congo Boyoma 17,000; Parana Guaira 13,300 historic; Niagara Horseshoe 2,400; Iguazu 1,746; Zambezi Victoria 1,088; Potaro Kaieteur 660; Jokulsa Dettifoss 500 m3/s
- Scale estimates: Yosemite Creek about 50; Sutherland about 11 m3/s mean
Last verified: 2026-10-09 · 10 entries
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