UnitConvConvert
Speed

Convert Beaufort to feet per second

1 Bft=3.28084ft/s

Use the converter below to change any Beaufort value into feet per second instantly — with formula, conversion table, and real-world examples.

2.742782

Conversion formula

Forward
m/s = 0.836 × Bft^1.5

The Beaufort scale uses a non-linear power relationship with wind speed.

About both units

From

Beaufort Scale

Bft

The Beaufort scale is an empirical wind-force scale from 0 (calm) to 12 (hurricane). Created by Francis Beaufort in 1805, it correlates wind force with observed effects on sea or land. Force 8 (34–40 knots) is a gale; force 12 is above 64 knots.

Real-world: Force 5 (fresh breeze): 17–21 knots, white-caps form. Force 8 (gale): 34–40 knots. Force 12: 64+ knots.
Read full beaufort scale reference →
To

Foot per Second

ft/s

Feet per second (ft/s) is used in some US engineering, ballistics (bullet velocity) and older US physics textbooks. Typical handgun muzzle velocity: 1000–1400 ft/s. Rifle muzzle velocity: 2500–3500 ft/s.

Real-world: 9mm bullet muzzle velocity: ~1150 ft/s. .308 rifle: ~2700 ft/s. Free fall terminal velocity: ~195 ft/s.
Read full foot per second reference →

Beaufort Scale to Foot per Second conversion table

Common Beaufort to feet per second values for quick reference.

Beaufort Scale (Bft)Foot per Second (ft/s)
1 Bft3.28084 ft/s
5 Bft16.4042 ft/s
10 Bft32.8084 ft/s
25 Bft82.021 ft/s
50 Bft164.042 ft/s
100 Bft328.084 ft/s
150 Bft492.126 ft/s
200 Bft656.168 ft/s
300 Bft984.252 ft/s
500 Bft1,640.42 ft/s

Tips & common mistakes

Quick tips

  • Beaufort is empirical — conversion to m/s uses v = 0.836 × B^1.5.
  • Force 4 (moderate breeze) = 5.5–7.9 m/s.
  • Marine forecasts still use Beaufort alongside knots.

Avoid these

  • Treating Beaufort as a linear scale — it is a power relationship.
  • Converting Beaufort to km/h by multiplying — always use the empirical formula.
  • Using Beaufort for land winds — it was designed for sea conditions.

Frequently asked questions

How many feet per second in a beaufort scale?
One beaufort scale equals 3.28084 feet per second.
How do I convert Beaufort to feet per second?
Multiply the beaufort scale value by 3.28084 to get the equivalent in feet per second.
What is 100 Beaufort in feet per second?
100 Beaufort equals 328.084 feet per second.
Is a beaufort scale bigger than a foot per second?
Yes. 1 beaufort scale equals 3.28084 feet per second, so one beaufort scale is larger.
How to convert Beaufort to feet per second without a calculator?
Multiply by 3.28 for a quick estimate; use a calculator for precise results.

Related speed conversions

📊 See full comparison matrix →

More from Beaufort Scale

Bft → km/h
1 = 3.6 km/h
Bft → m/s
1 = 1 m/s
Bft → mph
1 = 2.23694 mph
Bft → kn
1 = 1.94384 kn
Bft → Ma
1 = 0.002939 Ma
Bft → cm/s
1 = 100 cm/s
Bft → yd/min
1 = 65.6168 yd/min
Bft → in/min
1 = 2,364.07 in/min

More to Foot per Second

km/h → ft/s
1 = 0.9113 ft/s
m/s → ft/s
1 = 3.28084 ft/s
mph → ft/s
1 = 1.46667 ft/s
kn → ft/s
1 = 1.68781 ft/s
Ma → ft/s
1 = 1,116.44 ft/s
cm/s → ft/s
1 = 0.03281 ft/s
yd/min → ft/s
1 = 0.05 ft/s
in/min → ft/s
1 = 0.001388 ft/s

Conversions in other categories

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