Knots to Miles per Hour
Snapshot
1 knot equals about 1.15078 mph. Conversion Encyclopedia uses the same fixed conversion basis across the calculator, common values, and reverse page for this page.
- Reference basis: This converter uses the international nautical mile per hour basis.
- Example: For 10 knots, the result is about 11.51 mph with the same factor.
- Use the reverse page if you need the opposite direction with the same basis.
Use the interactive calculator below for custom values and the common-value table for quick checks.
Converter Calculator
11.507794 Miles per Hour (mph)
SwitchExplanation
Formula: Miles per Hour = Knot × 1.150779. Why: marine speed units are normalized through knots, so the route follows one deterministic vessel-speed basis before applying the target unit.
Knots (kn): the standard marine speed unit, equal to one nautical mile per hour.
Miles per Hour (mph): a common land-speed unit used when vessel or current speeds are restated in statute terms.
This route is useful when restating vessel speed between knots and engineering or land-speed units for navigation, instrumentation, and performance reporting.
This conversion is purely multiplicative because both units reduce through one fixed marine reference basis for the active family, with no offset.
Common Conversion Values
| Knot (kn) | Miles per Hour (mph) |
|---|---|
| 1 | 1.150779 |
| 5 | 5.753897 |
| 10 | 11.507794 |
| 15 | 17.261692 |
| 20 | 23.015589 |
| 30 | 34.523383 |
| 40 | 46.031178 |
Frequently Asked Questions
How many mph is 1 knot?
1 knot is about 1.15078 mph.
How many mph is 20 knots?
20 knots is about 23.02 mph.
What formula is used for Knot to Miles per Hour?
The converter applies the formula defined for Knot to Miles per Hour, then renders rounded output for the direct answer and common-value rows.