80 kilometres per hour
80 km/hSpeed · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Speed
Just how fast is 80 kilometres per hour?
Road & rail
80 km/h
DISTANCE IN ONE SECOND
80 kilometres per hour
The quantity is exact as entered.
80 km/hSpeed
0
22.22 m in 1 s
Land yacht
A land yacht is a wind-powered vehicle with wheels and a sail, designed for high-speed travel over flat surfaces such as beaches or dry lake beds.
72 km/hDefined fast sailing speed
0
20 m in 1 s
Each track shows distance covered in the same second. The small illustrations identify the movers; their sizes are schematic.
A little perspective
80 kilometres per hour is about 1.11 times the fast sailing speed of a land yacht.
Measurements, assumptions & sources +
80 kilometres per hour
Speed: 80 km/h; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Land yacht
Defined fast sailing speed: 72 km/h; defined specimen; range 43.2 km/h–108 km/h.
A defined three-wheel racing land yacht 5.5 m long, 3.5 m wide and 200 kg ready to sail, moving at 20 m/s. Racing classes vary; the mast height and pilot mass are excluded from the selected dimensions.
FISLY — International land and sand yachting
The marked defined fast sailing speed is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 80 kilometres per hour with the fast sailing speed of a land yacht. The notes below explain how each value was chosen.
Land yacht
72 km/hDefined fast sailing speed · defined specimen · range 43.2 km/h–108 km/h
A defined three-wheel racing land yacht 5.5 m long, 3.5 m wide and 200 kg ready to sail, moving at 20 m/s. Racing classes vary; the mast height and pilot mass are excluded from the selected dimensions.
- Comparing
- Speed ↔ Defined fast sailing speed
- Relative size
- 80 kilometres per hour is about 1.11 times the fast sailing speed of a land yacht. 80 kilometres per hour is approximately 11.1% greater than the fast sailing speed of a land yacht.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- We use 72 km/h for the fast sailing speed of a land yacht; the recorded range is 43.2 km/h–108 km/h.
- The fast sailing speed of a land yacht: This is an illustrative comparison value, not a claim that every example is the same.
- The recorded ranges overlap, so the ordering can vary even though the central values differ.
Speed is distance per unit time; it does not specify the total distance travelled.
22.222 m/smetres per second
49.71 mphmiles per hour
Mach 0.064788Mach
7.4125 × 10⁻⁶% of c (7.4125 × 10⁻⁸c)speed of light
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