Wind and boat speed
Knots to mph
One knot is 1.15078 miles per hour, and exactly 1.852 kilometers per hour. Type knots, mph, or km/h. The other two update together.
Beaufort force 4 · Moderate breeze
Small waves. Frequent whitecaps.
A 17-ft open boat feels this wind. Many 23-ft boats are still fine. A 40-ft boat usually has margin. Boat or Nope's default 23-ft profile uses a 15-knot wind limit, inside this band.
Beaufort describes the wind, not how fast the boat is moving. Full Beaufort scale
What a knot means on the water
A knot is one nautical mile per hour. Boat speed, current, and the wind in a marine forecast are usually in knots. A road speed in mph looks slower than the same number of knots because a statute mile is shorter than a nautical mile.
Fifteen knots is the wind limit on Boat or Nope's default 23-foot profile, with gusts starting 5 knots above that. The Beaufort row is only about the wind. Check the harbor page before you treat a force number as a go or no-go.
Check today's call for a harborForecast widgetNautical miles to milesBeaufort scale
Knots to mph questions
How do you convert knots to mph?
Multiply knots by 1.15078. One knot is one nautical mile per hour, and the international nautical mile is 1.852 kilometers. A statute mile is 1.609344 kilometers, so 1 knot = 1.852 / 1.609344 = 1.150779 mph.
How many mph is 1 knot?
1 knot is 1.150779 miles per hour, about 1.15 mph, and exactly 1.852 kilometers per hour.
Is a knot the same as mph?
A knot is a nautical mile per hour. A mile per hour uses the shorter statute mile, so the same number of knots is faster than that number of mph.
Does the Beaufort scale describe boat speed?
Beaufort force describes wind speed and the sea state that wind builds. It does not describe how fast the boat is moving. Boat or Nope's default 23-foot profile treats 15 knots of wind as its starting limit.