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Unit Converter

Conversion formula

The conversion factor from knots to feet per second is 1.6878098570997, which means that 1 knot is equal to 1.6878098570997 feet per second:

1 kt = 1.6878098570997 ft/s

To convert 4.2 knots into feet per second we have to multiply 4.2 by the conversion factor in order to get the velocity amount from knots to feet per second. We can also form a simple proportion to calculate the result:

1 kt → 1.6878098570997 ft/s

4.2 kt → V(ft/s)

Solve the above proportion to obtain the velocity V in feet per second:

V(ft/s) = 4.2 kt × 1.6878098570997 ft/s

V(ft/s) = 7.0888013998189 ft/s

The final result is:

4.2 kt → 7.0888013998189 ft/s

We conclude that 4.2 knots is equivalent to 7.0888013998189 feet per second:

4.2 knots = 7.0888013998189 feet per second

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 foot per second is equal to 0.14106757173724 × 4.2 knots.

Another way is saying that 4.2 knots is equal to 1 ÷ 0.14106757173724 feet per second.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four point two knots is approximately seven point zero eight nine feet per second:

4.2 kt ≅ 7.089 ft/s

An alternative is also that one foot per second is approximately zero point one four one times four point two knots.

Conversion table

knots to feet per second chart

For quick reference purposes, below is the conversion table you can use to convert from knots to feet per second

knots (kt) feet per second (ft/s)
5.2 knots 8.777 feet per second
6.2 knots 10.464 feet per second
7.2 knots 12.152 feet per second
8.2 knots 13.84 feet per second
9.2 knots 15.528 feet per second
10.2 knots 17.216 feet per second
11.2 knots 18.903 feet per second
12.2 knots 20.591 feet per second
13.2 knots 22.279 feet per second
14.2 knots 23.967 feet per second