Speed converter
Converting feet per second to knots is a small, specific task, but getting it wrong by even a rounding error can throw off a recipe, a shipping quote, a construction cut list, or a homework answer. This page runs a live Feet per Second to Knots converter — type a number in ft/s and get the exact kn equivalent instantly, calculated with the standard conversion factor rather than an approximation. One ft/s equals 0.59248431 kn, and the calculator below scales that ratio to any amount you enter.
To convert a value from feet per second to knots, multiply the number of ft/s by 0.59248431. That figure comes from expressing both units against the same reference — in this case, speed are compared through a common speed base unit — so the ratio holds no matter how large or small the input is.
Common ft/s amounts and their kn equivalents, rounded to six decimal places for accuracy:
Speed conversions come up constantly outside of a classroom. Recipes written for a US audience use units while international ones use metric measurements; travel and navigation mix miles, kilometers, and nautical units depending on the country and mode of transport; and technical fields like engineering, medicine, and manufacturing often require converting between systems to match a spec sheet, a prescription, or a purchase order.
Manual conversion is where mistakes creep in — misplacing a decimal, using an outdated or rounded factor, or mixing up which unit is larger. Because this converter applies the exact multiplier every time, the result for feet per second to knots is consistent whether you're converting a single small number or a large batch of values one at a time.
1 ft/s equals 0.59248431 kn. Multiply any ft/s value by this factor to get kn.
It uses the standard defined conversion factor for feet per second and knots, so results are precise to the rounding shown, not a rough estimate.
Yes — use the swap control in the calculator to reverse the direction and convert knots into feet per second instead.
No. The calculation runs locally in your browser using JavaScript, so nothing you type is sent anywhere.
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| Feet per Second | Knots |
|---|---|
| 1 ft/s | 0.592484 kn |
| 5 ft/s | 2.962422 kn |
| 10 ft/s | 5.924843 kn |
| 25 ft/s | 14.812108 kn |
| 50 ft/s | 29.624216 kn |
| 100 ft/s | 59.248431 kn |
| 500 ft/s | 296.242157 kn |
| 1000 ft/s | 592.484313 kn |