Unit Converter
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 640 feet per second into knots we have to multiply 640 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
640 ft/s → V(kt)
Solve the above proportion to obtain the velocity V in knots:
V(kt) = 640 ft/s × 0.59248380129641 kt
V(kt) = 379.1896328297 kt
The final result is:
640 ft/s → 379.1896328297 kt
We conclude that 640 feet per second is equivalent to 379.1896328297 knots:
640 feet per second = 379.1896328297 knots
Alternative conversion
We can also convert by utilizing the inverse value of the conversion factor. In this case 1 knot is equal to 0.0026372029017183 × 640 feet per second.
Another way is saying that 640 feet per second is equal to 1 ÷ 0.0026372029017183 knots.
Approximate result
For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty feet per second is approximately three hundred seventy-nine point one nine knots:
640 ft/s ≅ 379.19 kt
An alternative is also that one knot is approximately zero point zero zero three times six hundred forty 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
feet per second (ft/s) | knots (kt) |
---|---|
641 feet per second | 379.782 knots |
642 feet per second | 380.375 knots |
643 feet per second | 380.967 knots |
644 feet per second | 381.56 knots |
645 feet per second | 382.152 knots |
646 feet per second | 382.745 knots |
647 feet per second | 383.337 knots |
648 feet per second | 383.93 knots |
649 feet per second | 384.522 knots |
650 feet per second | 385.114 knots |