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 821 knots into feet per second we have to multiply 821 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

821 kt → V_(ft/s)

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

V_(ft/s) = 821 kt × 1.6878098570997 ft/s

V_(ft/s) = 1385.6918926789 ft/s

The final result is:

821 kt → 1385.6918926789 ft/s

We conclude that 821 knots is equivalent to 1385.6918926789 feet per second:

821 knots = 1385.6918926789 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 0.00072166114652425 × 821 knots.

Another way is saying that 821 knots is equal to 1 ÷ 0.00072166114652425 feet per second.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eight hundred twenty-one knots is approximately one thousand three hundred eighty-five point six nine two feet per second:

821 kt ≅ 1385.692 ft/s

An alternative is also that one foot per second is approximately zero point zero zero one times eight hundred twenty-one 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