Formula.mph = knots × 1.15078.
Relationship.1 kn = 1.15078 mph.
Worked example. 100 kn = 115.08 mph.
Knots to mph Converter.
1 kn = 1.15078 mph, so 100 kn = 115.08 mph. Type any value below to convert knots to mph instantly.
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Copied ✓ mph
Copied ✓ Reference Table
| km/h | mph | m/s | ft/s | kn |
|---|---|---|---|---|
| 0.1852 | 0.1150779448 | 0.0514444444 | 0.1687809857 | 0.1 |
| 1.852 | 1.150779 | 0.5144444444 | 1.68781 | 1 |
| 18.52 | 11.507794 | 5.144444 | 16.878099 | 10 |
| 185.2 | 115.077945 | 51.444444 | 168.780986 | 100 |
| 1852 | 1150.7794 | 514.444444 | 1687.8099 | 1000 |
| 18520 | 11507.7945 | 5144.4444 | 16878.0986 | 10000 |
| 185200 | 115077.9448 | 51444.4444 | 168780.9857 | 100000 |
How to convert knots to mph
knots to mph conversion table
| kn | mph |
|---|---|
| 1 | 1.150779 |
| 5 | 5.753897 |
| 10 | 11.507794 |
| 15 | 17.261692 |
| 20 | 23.015589 |
| 25 | 28.769486 |
| 30 | 34.523383 |
| 35 | 40.277281 |
| 40 | 46.031178 |
| 45 | 51.785075 |
| 50 | 57.538972 |
| 60 | 69.046767 |
| 70 | 80.554561 |
| 80 | 92.062356 |
| 90 | 103.57015 |
| 100 | 115.077945 |
| 120 | 138.093534 |
| 150 | 172.616917 |
| 180 | 207.140301 |
| 200 | 230.15589 |
| 250 | 287.694862 |
| 300 | 345.233834 |
| 400 | 460.311779 |
| 500 | 575.389724 |
| 600 | 690.467669 |
Frequently Asked Questions
How do I convert knots to mph?
Multiply by 1.15078. For example, 100 knots × 1.15078 ≈ 115.1 mph.
What is a knot?
One nautical mile per hour. A nautical mile is 1,852 metres — slightly longer than a statute mile — so a knot is a little faster than 1 mph.
Why do ships and aircraft use knots?
Because a nautical mile equals one minute of latitude, so a navigator can read distance directly off a chart's latitude scale and convert to time without extra arithmetic. The convention long predates satellite navigation and has simply stuck.
How fast is a hurricane in knots?
A Category 1 hurricane starts at 64 knots (74 mph), and Category 5 begins at 137 knots (157 mph). Marine and aviation forecasts quote wind in knots, which is why hurricane thresholds look like odd numbers in mph.