Boating Information


The Royal National Lifeboat Institution - Saves Lives at Sea

Boating Information

This information has been randomly thrown in to this page, and it has been suitably chewed up and spat back out by your browser. Basically do not rely on this information to be 100% accurate. If you spot a mistake then please let me know.

Beaufort Wind Scale

(Speeds in Knots)

FORCE WIND SPEED SEA DESCRIPTION PROBABLE WAVE HEIGHT
IN OPEN SEA (m)
0 less than 1 Glassy sea: Smoke rises vertically
1 1 - 3 Small Ripples
2 4 - 6 Light breeze; wavelets 0.15
3 7 - 10 Gentle breeze, crests of large wavelets break occasionally 0.6
4 11 - 16 Moderate breeze; small waves, with breaking crests 1
5 17 - 21 Fresh breeze; long waves, spray from breaking crests 1.8
6 22 - 27 Strong breeze; large waves with extensive foamy crests 3
7 28 - 33 Near gale; sea heaps up, white foam from crests blows in streaks downwind 4
8 34 - 40 Gale Force; longer, higher waves, spindrift off crests, streaky foam 5.5
9 41 - 47 Strong Gale; high waves, crests topple 7
10 48 - 55 Storm Force; very high waves, long curved crests, sea white foam from large foam patches. Visibility seriously affected by spray 9
11 56 - 63 Violent storm; huge waves, very bad visibility 11.3
12 64+ Hurricane; air full of foam and spray 13.7+

Conversions

Enter a value in the left hand box then click anywhere outside the box to get the answer in the right hand box.

ORIGINAL UNIT MULTIPLY BY RESULT
Knots 1.1363 MPH
MPH 0.88 Knots
Pints (imp) 1.201 Pints (US)
Pints (US) 0.833 Pints (imp)
Gallons (imp) 4.546 Litres
Litres 0.22 Gallons (imp)
Gallons (imp) 1.201 Gallons (US)
Gallons (US) 0.8327 Gallons (imp)
Litres/second 13.2 Gallons/minute
Gallons/minute 0.075757 Litres/second
Litres/minute 1.1363 Gallons/second
Fluid oz (imp) 28.41 Cubic cm
Fluid oz (US) 1.041 Fluid oz (imp)
Minutes (angle) 0.01667 Degrees (angle)
Square Yards 0.8361 Square Metres
Square Metres 1.196 Square Yards
Horsepower (imp) 1.104 Horsepower (metric)
Miles 1.609 Kilometres
Imperial Miles 0.8684 Nautical Miles
Cubic cm 353100 Cubic ft
Cubic Metres 1.1363 Cubic Yards
Cubic Metres 120 Gallons (imp)
Cubic Yards 0.7646 Cubic Metres
Cubic Yards 764.5 Litres
Fathoms 1.85 Metres (A Fathom is 6 Feet)
Feet 0.3048 Metres
Inches 25.4 Millimetres
Kilograms 2.205 Pounds
Kilometres 3,281 Feet
Kilometres 0.6214 Miles
PSI 0.03591 Cm of Mercury