Kilometers per Second to Feet per Second

How to convert kilometers per second to feet per second

Formulaft/s = km/s × 3,280.839895

Multiply the value in kilometers per second by 3,280.839895. To go the other way, multiply by 0.0003048 (or divide by 3,280.839895).

A kilometer per second is larger than a foot per second: one kilometer per second contains 3,280.839895 feet per second.

Worked examples

1 kilometer per second1 km/s × 3,280.839895 = 3,280.839895 ft/s
5 kilometers per second5 km/s × 3,280.839895 = 16,404.19948 ft/s
10 kilometers per second10 km/s × 3,280.839895 = 32,808.39895 ft/s
20 kilometers per second20 km/s × 3,280.839895 = 65,616.7979 ft/s
100 kilometers per second100 km/s × 3,280.839895 = 328,083.9895 ft/s

Kilometers per second to feet per second conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Kilometers per second to feet per second: 0.1–10 km/s
Kilometers per second (km/s)	Feet per second (ft/s)
0.1 km/s	328.08399 ft/s
0.25 km/s	820.20997 ft/s
0.5 km/s	1,640.4199 ft/s
1 km/s	3,280.8399 ft/s
2 km/s	6,561.6798 ft/s
3 km/s	9,842.5197 ft/s
4 km/s	13,123.36 ft/s
5 km/s	16,404.199 ft/s
6 km/s	19,685.039 ft/s
7 km/s	22,965.879 ft/s
8 km/s	26,246.719 ft/s
9 km/s	29,527.559 ft/s
10 km/s	32,808.399 ft/s

Kilometers per second to feet per second: 12–1,000 km/s
Kilometers per second (km/s)	Feet per second (ft/s)
12 km/s	39,370.079 ft/s
15 km/s	49,212.598 ft/s
20 km/s	65,616.798 ft/s
25 km/s	82,020.997 ft/s
30 km/s	98,425.197 ft/s
40 km/s	131,233.6 ft/s
50 km/s	164,041.99 ft/s
75 km/s	246,062.99 ft/s
100 km/s	328,083.99 ft/s
250 km/s	820,209.97 ft/s
500 km/s	1,640,419.9 ft/s
1,000 km/s	3,280,839.9 ft/s

About the units

Kilometer per second (km/s)

The kilometer per second (km/s) is a unit of speed in the International System of Units (SI). One kilometer per second equals 1,000 meters per second (m/s).

Foot per second (ft/s)

Exactly 0.3048 m/s. Used for projectile and fluid velocities in US engineering.

Frequently asked questions

How many feet per second are in one kilometer per second?

There are 3,280.839895 feet per second in one kilometer per second, and this value is exact by definition.

How do I convert kilometers per second to feet per second?

Multiply the number of kilometers per second by 3,280.839895. For example, 10 km/s × 3,280.839895 = 32,808.39895 ft/s.

How many kilometers per second are in one foot per second?

One foot per second equals 0.0003048 kilometers per second. That is the reverse factor, 1 ÷ 3,280.839895.

What is 10 kilometers per second in feet per second?

10 km/s = 32,808.39895 ft/s.

Is this km/s to ft/s converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.

Kilometers per Second to Feet per Second Converter