Convert Kilometers Per Second to Feet Per Second

Enter the speed in kilometers per second below to get the value converted to feet per second.

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1 km/s = 3,280.839895 ft/s

How to Convert Kilometers Per Second to Feet Per Second

Speedometers are used in vehicles to measure speed

To convert a kilometer per second measurement to a foot per second measurement, multiply the speed by the conversion ratio. One kilometer per second is equal to 3,280.839895 feet per second, so use this simple formula to convert:

feet per second = kilometers per second × 3,280.839895

The speed in feet per second is equal to the kilometers per second multiplied by 3,280.839895.

For example, here's how to convert 5 kilometers per second to feet per second using the formula above.
5 km/s = (5 × 3,280.839895) = 16,404.199475 ft/s

Kilometers per second and feet per second are both units used to measure speed. Keep reading to learn more about each unit of measure.

Kilometers Per Second

Kilometers per second are a measurement of speed expressing the distance travelled in kilometers in one second.

The kilometer per second, or kilometre per second, is an SI unit of speed in the metric system. Kilometers per second can be abbreviated as km/s, and are also sometimes abbreviated as km/sec. For example, 1 kilometer per second can be written as 1 km/s or 1 km/sec.

Kilometers per second can be expressed using the formula:
vkm/s = dkmtsec

The velocity in kilometers per second is equal to the distance in kilometers divided by time in seconds.

Feet Per Second

Feet per second are a measurement of speed expressing the distance travelled in feet in one second.

The foot per second is a US customary and imperial unit of speed. Feet per second can be abbreviated as ft/s, and are also sometimes abbreviated as ft/sec or fps. For example, 1 foot per second can be written as 1 ft/s, 1 ft/sec, or 1 fps.

Feet per second can be expressed using the formula:
vft/s = dfttsec

The velocity in feet per second is equal to the distance in feet divided by time in seconds.

Kilometer Per Second Measurements and Equivalent Foot Per Second Conversions

Common kilometer per second values converted to the equivalent foot per second value
Kilometers Per Second Feet Per Second
1 km/s 3,281 ft/s
2 km/s 6,562 ft/s
3 km/s 9,843 ft/s
4 km/s 13,123 ft/s
5 km/s 16,404 ft/s
6 km/s 19,685 ft/s
7 km/s 22,966 ft/s
8 km/s 26,247 ft/s
9 km/s 29,528 ft/s
10 km/s 32,808 ft/s
11 km/s 36,089 ft/s
12 km/s 39,370 ft/s
13 km/s 42,651 ft/s
14 km/s 45,932 ft/s
15 km/s 49,213 ft/s
16 km/s 52,493 ft/s
17 km/s 55,774 ft/s
18 km/s 59,055 ft/s
19 km/s 62,336 ft/s
20 km/s 65,617 ft/s
21 km/s 68,898 ft/s
22 km/s 72,178 ft/s
23 km/s 75,459 ft/s
24 km/s 78,740 ft/s
25 km/s 82,021 ft/s
26 km/s 85,302 ft/s
27 km/s 88,583 ft/s
28 km/s 91,864 ft/s
29 km/s 95,144 ft/s
30 km/s 98,425 ft/s
31 km/s 101,706 ft/s
32 km/s 104,987 ft/s
33 km/s 108,268 ft/s
34 km/s 111,549 ft/s
35 km/s 114,829 ft/s
36 km/s 118,110 ft/s
37 km/s 121,391 ft/s
38 km/s 124,672 ft/s
39 km/s 127,953 ft/s
40 km/s 131,234 ft/s

More Kilometer Per Second Speed Conversions

Convert to Knots
1 km/s is equal to 1,943.84 knots
Convert to Mach
1 km/s is equal to Mach 2.915452
Convert to Speed Of Sound
1 km/s is equal to 2.915452 speed of sound
Convert to Speed Of Light
1 km/s is equal to 3.3356E-6 speed of light
Convert to Miles Per Hour
1 km/s is equal to 2,236.94 miles per hour
Convert to Kilometers Per Hour
1 km/s is equal to 3,600 kilometers per hour
Convert to Meters Per Second
1 km/s is equal to 1,000 meters per second
Convert to Centimeters Per Second
1 km/s is equal to 100,000 centimeters per second