Conversion formula

The conversion factor from feet per second to knots is 0.59248380129641, which means that 1 foot per second is equal to 0.59248380129641 knots:

1 ft/s = 0.59248380129641 kt

To convert 870 feet per second into knots we have to multiply 870 by the conversion factor in order to get the velocity amount from feet per second to knots. We can also form a simple proportion to calculate the result:

1 ft/s → 0.59248380129641 kt

870 ft/s → V_(kt)

Solve the above proportion to obtain the velocity V in knots:

V_(kt) = 870 ft/s × 0.59248380129641 kt

V_(kt) = 515.46090712788 kt

The final result is:

870 ft/s → 515.46090712788 kt

We conclude that 870 feet per second is equivalent to 515.46090712788 knots:

870 feet per second = 515.46090712788 knots

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0019400113299997 × 870 feet per second.

Another way is saying that 870 feet per second is equal to 1 ÷ 0.0019400113299997 knots.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eight hundred seventy feet per second is approximately five hundred fifteen point four six one knots:

870 ft/s ≅ 515.461 kt

An alternative is also that one knot is approximately zero point zero zero two times eight hundred seventy feet per second.

Conversion table

feet per second to knots chart

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