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How to Convert Knots to Miles per Hour
Multiply the knot value by 1.15078. One knot equals one nautical mile per hour, and one nautical mile is 1.15078 statute miles.
Knots to Miles per Hour Conversion Table
| Knots | Miles per Hour |
|---|---|
| 0.5 | 0.57539 |
| 1 | 1.15078 |
| 2 | 2.30156 |
| 5 | 5.7539 |
| 10 | 11.5078 |
| 15 | 17.2617 |
| 20 | 23.0156 |
| 25 | 28.7695 |
| 50 | 57.539 |
| 100 | 115.078 |
| 250 | 287.695 |
| 500 | 575.39 |
| 1000 | 1150.78 |
How Many Miles per Hour in a Knot?
1 knot equals 1.15078 miles per hour. To convert any value, multiply the number of knots by 1.15078.
Common Use Cases
Recreational boaters and sailors in the US track boat speed in knots on marine instruments but discuss speed in mph with non-nautical friends and family. A sailboat making 7 knots is traveling at about 8.06 mph, and converting makes casual conversation about sailing performance accessible to people unfamiliar with nautical units.
Pilots reading weather briefings (METARs and TAFs) encounter wind speeds reported in knots, the standard for aviation worldwide. A crosswind component of 15 knots (about 17.3 mph) helps general-aviation pilots who learned to fly with mph-based personal-minimums assess whether conditions are within their comfort zone for landing.
Hurricane and tropical-storm tracking in the US reports sustained wind speeds in both knots and mph. The Saffir-Simpson scale uses mph thresholds (74 mph for Category 1), but the National Hurricane Center's advisory packages report in knots first. A storm with 65-knot winds (about 74.8 mph) barely qualifies as a hurricane, and the conversion determines evacuation and preparation decisions.