Unit Converter
Conversion formula
The conversion factor from miles per hour to knots is 0.8689762419014, which means that 1 mile per hour is equal to 0.8689762419014 knots:
1 mph = 0.8689762419014 kt
To convert 397 miles per hour into knots we have to multiply 397 by the conversion factor in order to get the velocity amount from miles per hour to knots. We can also form a simple proportion to calculate the result:
1 mph → 0.8689762419014 kt
397 mph → V(kt)
Solve the above proportion to obtain the velocity V in knots:
V(kt) = 397 mph × 0.8689762419014 kt
V(kt) = 344.98356803486 kt
The final result is:
397 mph → 344.98356803486 kt
We conclude that 397 miles per hour is equivalent to 344.98356803486 knots:
397 miles per hour = 344.98356803486 knots
Alternative conversion
We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.002898688785951 × 397 miles per hour.
Another way is saying that 397 miles per hour is equal to 1 ÷ 0.002898688785951 knots.
Approximate result
For practical purposes we can round our final result to an approximate numerical value. We can say that three hundred ninety-seven miles per hour is approximately three hundred forty-four point nine eight four knots:
397 mph ≅ 344.984 kt
An alternative is also that one knot is approximately zero point zero zero three times three hundred ninety-seven miles per hour.
Conversion table
miles per hour to knots chart
For quick reference purposes, below is the conversion table you can use to convert from miles per hour to knots
miles per hour (mph) | knots (kt) |
---|---|
398 miles per hour | 345.853 knots |
399 miles per hour | 346.722 knots |
400 miles per hour | 347.59 knots |
401 miles per hour | 348.459 knots |
402 miles per hour | 349.328 knots |
403 miles per hour | 350.197 knots |
404 miles per hour | 351.066 knots |
405 miles per hour | 351.935 knots |
406 miles per hour | 352.804 knots |
407 miles per hour | 353.673 knots |