Unit Converter
Conversion formula
The conversion factor from knots to miles per hour is 1.1507794480225, which means that 1 knot is equal to 1.1507794480225 miles per hour:
1 kt = 1.1507794480225 mph
To convert 420 knots into miles per hour we have to multiply 420 by the conversion factor in order to get the velocity amount from knots to miles per hour. We can also form a simple proportion to calculate the result:
1 kt → 1.1507794480225 mph
420 kt → V(mph)
Solve the above proportion to obtain the velocity V in miles per hour:
V(mph) = 420 kt × 1.1507794480225 mph
V(mph) = 483.32736816947 mph
The final result is:
420 kt → 483.32736816947 mph
We conclude that 420 knots is equivalent to 483.32736816947 miles per hour:
420 knots = 483.32736816947 miles per hour
Alternative conversion
We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile per hour is equal to 0.0020689910521462 × 420 knots.
Another way is saying that 420 knots is equal to 1 ÷ 0.0020689910521462 miles per hour.
Approximate result
For practical purposes we can round our final result to an approximate numerical value. We can say that four hundred twenty knots is approximately four hundred eighty-three point three two seven miles per hour:
420 kt ≅ 483.327 mph
An alternative is also that one mile per hour is approximately zero point zero zero two times four hundred twenty knots.
Conversion table
knots to miles per hour chart
For quick reference purposes, below is the conversion table you can use to convert from knots to miles per hour
knots (kt) | miles per hour (mph) |
---|---|
421 knots | 484.478 miles per hour |
422 knots | 485.629 miles per hour |
423 knots | 486.78 miles per hour |
424 knots | 487.93 miles per hour |
425 knots | 489.081 miles per hour |
426 knots | 490.232 miles per hour |
427 knots | 491.383 miles per hour |
428 knots | 492.534 miles per hour |
429 knots | 493.684 miles per hour |
430 knots | 494.835 miles per hour |