20 miles per hour
8.941 m/sSpeed · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Speed
Just how fast is 20 miles per hour?
On foot
20 mph
DISTANCE IN ONE SECOND
20 miles per hour
The quantity is exact as entered.
8.941 m/sSpeed
0
8.941 m in 1 s
Racing catamaran
A racing catamaran is a high-speed sailing boat with two parallel hulls, designed for competitive sailing.
43.2 km/hDefined fast sailing speed
0
12 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
The fast sailing speed of a racing catamaran is about 1.34 times 20 miles per hour.
Measurements, assumptions & sources +
20 miles per hour
Speed: 8.941 m/s; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Racing catamaran
Defined fast sailing speed: 43.2 km/h; specified; range 7 m/s–64.8 km/h.
A Formula 18 racing catamaran at the class limits of 5.52 m length, 2.60 m width and 180 kg minimum ready-to-sail mass, shown at a defined 12 m/s pace. Crew mass and momentary race speed are excluded.
International Formula 18 — Class rules
The marked defined fast sailing speed is calibrated. Unmeasured illustration details are representative.
Measurement details
Why these numbers?
Compare 20 miles per hour with the fast sailing speed of a racing catamaran. The notes below explain how each value was chosen.
Racing catamaran
43.2 km/hDefined fast sailing speed · specified · range 7 m/s–64.8 km/h
A Formula 18 racing catamaran at the class limits of 5.52 m length, 2.60 m width and 180 kg minimum ready-to-sail mass, shown at a defined 12 m/s pace. Crew mass and momentary race speed are excluded.
- Comparing
- Speed ↔ Defined fast sailing speed
- Relative size
- The fast sailing speed of a racing catamaran is about 1.34 times 20 miles per hour. The fast sailing speed of a racing catamaran is approximately 34.2% greater than 20 miles per hour.
How to read the visual
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
- We use 43.2 km/h for the fast sailing speed of a racing catamaran; the recorded range is 7 m/s–64.8 km/h.
- 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.
8.9408 m/smetres per second
32.187 km/hkilometres per hour
Mach 0.026066Mach
2.9823 × 10⁻⁶% of c (2.9823 × 10⁻⁸c)speed of light
Change your perspective
Put it next to…
Choose a suggestion to redraw the comparison, or open its page to learn what it is.
A little smaller. A little larger.