Formlen til at omregne Lysets hastighed til Fod per sekund er som følger:
Fod per sekund = Lysets hastighed × 983,571,056.4304461
Anvend på din beregning:
1 c × 983,571,056.4304461 = 983,571,056.4304461 ft/s
| Lysets hastighed | Fod per sekund |
|---|---|
| 0.01 c | 9,835,710.56430446 ft/s |
| 0.1 c | 98,357,105.64304462 ft/s |
| 1 c | 983,571,056.4304461 ft/s |
| 2 c | 1,967,142,112.86 ft/s |
| 3 c | 2,950,713,169.29 ft/s |
| 4 c | 3,934,284,225.72 ft/s |
| 5 c | 4,917,855,282.15 ft/s |
| 6 c | 5,901,426,338.58 ft/s |
| 7 c | 6,884,997,395.01 ft/s |
| 8 c | 7,868,568,451.44 ft/s |
| 9 c | 8,852,139,507.87 ft/s |
| 10 c | 9,835,710,564.3 ft/s |
| 20 c | 19,671,421,128.61 ft/s |
| 30 c | 29,507,131,692.91 ft/s |
| 40 c | 39,342,842,257.22 ft/s |
| 50 c | 49,178,552,821.52 ft/s |
| 60 c | 59,014,263,385.83 ft/s |
| 70 c | 68,849,973,950.13 ft/s |
| 80 c | 78,685,684,514.44 ft/s |
| 90 c | 88,521,395,078.74 ft/s |
| 100 c | 98,357,105,643.04 ft/s |
| 200 c | 196,714,211,286.09 ft/s |
| 300 c | 295,071,316,929.13 ft/s |
| 500 c | 491,785,528,215.22 ft/s |
| 1,000 c | 983,571,056,430.45 ft/s |
| 10,000 c | 9,835,710,564,304.46 ft/s |
| 1 c (Lysets hastighed) = | |
|---|---|
| Millimeter per sekund | 299,792,458,000 mm/s |
| Centimeter per sekund | 29,979,245,800 cm/s |
| Meter per sekund | 299,792,458 m/s |
| Kilometer i timen | 1,079,251,985.4 km/h |
| Fod per sekund | 983,571,056.4304461 ft/s |
| Mile i timen | 670,616,629.3843951 mph |
| Knob | 582,750,421.8146193 kn |
| Mach | 874,030.48979592 Mach |
| Lysets hastighed | 1 c |
| 1 ft/s (Fod per sekund) = | |
|---|---|
| Millimeter per sekund | 304.8 mm/s |
| Centimeter per sekund | 30.48 cm/s |
| Meter per sekund | 0.3048 m/s |
| Kilometer i timen | 1.09727912 km/h |
| Fod per sekund | 1 ft/s |
| Mile i timen | 0.681818181818 mph |
| Knob | 0.592484313161 kn |
| Mach | 0.000888629738 Mach |
| Lysets hastighed | 0.0000000010167 c |