Convert Knots to Miles per Hour — Instantly
Convert knots to miles per hour (mph) instantly using the formula mph = knots × 1.150779. Includes a calculator, conversion table, worked examples, and FAQs.
Knots to miles per hour converter
Quick Reference
Knots to Miles per Hour Conversion Table
Common knots to mph conversions at a glance, using the exact relationship 1 knot = 1852 / 1609.344 mph.
| Knots (kn) | Calculation | Miles per Hour (mph) |
|---|---|---|
| 1 knot | 1 × 1.150779 | 1.150779 mph |
| 5 knots | 5 × 1.150779 | 5.753897 mph |
| 10 knots | 10 × 1.150779 | 11.507794 mph |
| 15 knots | 15 × 1.150779 | 17.261692 mph |
| 20 knots | 20 × 1.150779 | 23.015589 mph |
| 25 knots | 25 × 1.150779 | 28.769486 mph |
| 30 knots | 30 × 1.150779 | 34.523383 mph |
| 40 knots | 40 × 1.150779 | 46.031178 mph |
| 50 knots | 50 × 1.150779 | 57.538972 mph |
| 60 knots | 60 × 1.150779 | 69.046767 mph |
| 75 knots | 75 × 1.150779 | 86.308459 mph |
| 100 knots | 100 × 1.150779 | 115.077945 mph |
Step-by-Step
How to Convert Knots to Miles per Hour
Converting knots to miles per hour is simple when you multiply the speed by 1.150779.
The Formula
Knots and miles per hour are both units of speed, but they are used in different contexts. Knots are common in marine navigation, aviation, and meteorology, while miles per hour are widely used for road speeds and general speed comparisons in countries using statute miles.
The exact relationship is 1 knot = 1852 / 1609.344 mph, which is about 1.150779448 mph.
How to Turn Knots into mph — Step by Step
Write down the speed value
Identify the number of knots you want to convert — for example, 20 knots.
Multiply by 1.150779
20 knots × 1.150779 = 23.015589 mph. This gives you the equivalent speed in miles per hour.
Label your answer
Always write the unit (mph) after the number so the result is clear and unambiguous.
Knots vs mph
What Is the Difference Between Knots and Miles per Hour?
Knots and miles per hour are both measurements of speed. A knot is one nautical mile per hour and is widely used in boating, shipping, aviation, and weather reports. Miles per hour measure statute miles per hour and are commonly used for road speed limits and vehicles.
The relationship used on this page is: 1 knot = 1.150779448 mph. To convert knots to miles per hour, multiply the number of knots by 1.150779.
For example, 10 knots = 11.507794 mph, 20 knots = 23.015589 mph, and 50 knots = 57.538972 mph.
This conversion is especially useful for marine navigation, sailing, aviation, wind-speed comparisons, and technical documentation that needs speeds expressed in mph.
Worked Examples
Sample Knots to mph Calculations
Here is how to calculate knots to miles per hour for commonly searched values.
5 knots to mph
5 × 1.150779 = 5.753897 mph. Five knots equals about 5.75 miles per hour.
10 knots to mph
10 × 1.150779 = 11.507794 mph. Ten knots equals about 11.51 miles per hour.
20 knots to mph
20 × 1.150779 = 23.015589 mph. Twenty knots equals about 23.02 miles per hour.
25 knots to mph
25 × 1.150779 = 28.769486 mph. Twenty-five knots equals about 28.77 miles per hour.
30 knots to mph
30 × 1.150779 = 34.523383 mph. Thirty knots equals about 34.52 miles per hour.
40 knots to mph
40 × 1.150779 = 46.031178 mph. Forty knots equals about 46.03 miles per hour.
50 knots to mph
50 × 1.150779 = 57.538972 mph. Fifty knots equals about 57.54 miles per hour.
100 knots to mph
100 × 1.150779 = 115.077945 mph. One hundred knots equals about 115.08 miles per hour.
FAQ
Frequently Asked Questions
Everything you need to know about converting knots to miles per hour.