Use the converter below to change any knots value into Beaufort instantly — with formula, conversion table, and real-world examples.
The Beaufort scale uses a non-linear power relationship with wind speed.
The knot equals one nautical mile per hour — 1.852 km/h. It is the international standard in marine navigation and aviation. Commercial airliners cruise at 450–500 knots. Sailboats in light breeze: 2–6 knots.
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.
Common knots to Beaufort values for quick reference.