Niagara Falls
Niagara Falls is a group of three waterfalls on the Niagara River between Canada and the United States.
Also known as: Horseshoe Falls drop
How big is it?
51 m · horseshoe Falls vertical drop
Also 167.3 ft
Horseshoe Falls vertical drop · approximate
Typical recorded range: 50 m to 57 m.
A little perspective
Niagara Falls vs Leaning Tower of Pisa: length comparison
The overall height of the Leaning Tower of Pisa is about 1.1 times the horseshoe Falls vertical drop of Niagara Falls.
Niagara Falls is a group of three waterfalls on the Niagara River between Canada and the United States.
The Leaning Tower of Pisa is a medieval freestanding bell tower in Pisa, Italy, famous for its unintended tilt.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork.
Measurements, assumptions & sources +
Niagara Falls
Horseshoe Falls vertical drop: 51 m; approximate; range 50 m–57 m.
A rounded 51 m vertical-drop anchor for Horseshoe Falls. The Niagara complex contains three waterfalls with different widths and drops; this is not total river elevation change.
Niagara Parks — Niagara Falls facts
The marked horseshoe Falls vertical drop is calibrated. Unmeasured illustration details are representative.
Leaning Tower of Pisa
Overall height: 56 m; approximate; range 55.5 m–56.7 m.
The freestanding bell tower is represented by a rounded 56 m base-to-top height. The top is not level and published heights differ slightly by side and convention.
Opera della Primaziale Pisana — Leaning Tower
The marked overall height is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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 51 m
We compare the horseshoe Falls vertical drop of Niagara Falls. This is an estimate; check the notes for its rounding and uncertainty. The recorded range is 50 m to 57 m.
A rounded 51 m vertical-drop anchor for Horseshoe Falls. The Niagara complex contains three waterfalls with different widths and drops; this is not total river elevation change.
The marked vertical span follows the measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 51 m | 50 m to 57 m | approximate |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueSport and equipment50 m swimming pool50 mLengthA 50 m swimming pool is a large pool built for competitive swimming events, including international competitions.
Around the same scaleBuildings and structuresLeaning Tower of Pisa56 mOverall heightThe Leaning Tower of Pisa is a medieval freestanding bell tower in Pisa, Italy, famous for its unintended tilt.
Nearest higher valuePlaces and natural featuresRoe River61 mCommonly cited river lengthThe Roe River is a short river in Montana, USA, flowing from Giant Springs to the Missouri River.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- Niagara Parks — Niagara Falls factsHorseshoe Falls has an approximately 51 m vertical drop; the three falls differ.
There’s always another scale
Follow your curiosity.
PlacesMount Everest8.849 kmMount Everest is the highest mountain above sea level, located in the Himalayas on the border between Nepal and China.PlacesChallenger Deep10.94 kmChallenger Deep is the deepest known point in the Earth's oceans, located in the Mariana Trench.Built worldLeaning Tower of Pisa56 mThe Leaning Tower of Pisa is a medieval freestanding bell tower in Pisa, Italy, famous for its unintended tilt.
TransportConcorde62.1 mConcorde was a supersonic passenger airliner developed by British and French manufacturers that could travel faster than the speed of sound.
Living thingsSiphonophore colony40 mA siphonophore is a floating colony of specialised animals called zooids that function together as one organism-like body.Sport50 m swimming pool50 mA 50 m swimming pool is a large pool built for competitive swimming events, including international competitions.
SpaceSpace Shuttle orbiter37.24 mA Space Shuttle orbiter was a reusable winged spacecraft that carried crews and cargo between Earth and low orbit.
Built worldTower Bridge61 mTower Bridge is a combined bascule and suspension bridge crossing the River Thames in central London.