speed of light | 1 c | 2 c | 3 c | 4 c | 5 c | 6 c | 7 c | 8 c | 9 c | 10 c | 11 c | 12 c | 13 c | 14 c | 15 c | 16 c | 17 c | 18 c | 19 c | 20 c | 21 c | 22 c | 23 c | 24 c | 25 c | 26 c | 27 c | 28 c | 29 c | 30 c | 31 c | 32 c | 33 c | 34 c | 35 c | 36 c | 37 c | 38 c | 39 c | 40 c | 41 c | 42 c | 43 c | 44 c | 45 c | 46 c | 47 c | 48 c | 49 c | 50 c | 51 c | 52 c | 53 c | 54 c | 55 c | 56 c | 57 c | 58 c | 59 c | 60 c | 61 c | 62 c | 63 c | 64 c | 65 c | 66 c | 67 c | 68 c | 69 c | 70 c | 71 c | 72 c | 73 c | 74 c | 75 c | 76 c | 77 c | 78 c | 79 c | 80 c | 81 c | 82 c | 83 c | 84 c | 85 c | 86 c | 87 c | 88 c | 89 c | 90 c | 91 c | 92 c | 93 c | 94 c | 95 c | 96 c | 97 c | 98 c | 99 c | 100 c |
speed of light | 1 c | 2 c | 3 c | 4 c | 5 c | 6 c | 7 c | 8 c | 9 c | 10 c | 11 c | 12 c | 13 c | 14 c | 15 c | 16 c | 17 c | 18 c | 19 c | 20 c | 21 c | 22 c | 23 c | 24 c | 25 c | 26 c | 27 c | 28 c | 29 c | 30 c | 31 c | 32 c | 33 c | 34 c | 35 c | 36 c | 37 c | 38 c | 39 c | 40 c | 41 c | 42 c | 43 c | 44 c | 45 c | 46 c | 47 c | 48 c | 49 c | 50 c | 51 c | 52 c | 53 c | 54 c | 55 c | 56 c | 57 c | 58 c | 59 c | 60 c | 61 c | 62 c | 63 c | 64 c | 65 c | 66 c | 67 c | 68 c | 69 c | 70 c | 71 c | 72 c | 73 c | 74 c | 75 c | 76 c | 77 c | 78 c | 79 c | 80 c | 81 c | 82 c | 83 c | 84 c | 85 c | 86 c | 87 c | 88 c | 89 c | 90 c | 91 c | 92 c | 93 c | 94 c | 95 c | 96 c | 97 c | 98 c | 99 c | 100 c |
The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is 299,792,458 metres per second (approximately 3.00×108 m/s, or 186,282 mi/s); it is exact because the unit of length, the metre, is defined from this constant and the international standard for time.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
speed of light | c | ≡ 299792458 m/s | = 299792458 m/s | Other Speed |
speed of lights | speed of lights | speed of lights | speed of lights |
---|---|---|---|
1 | = 1 | 6 | = 6 |
2 | = 2 | 7 | = 7 |
3 | = 3 | 8 | = 8 |
4 | = 4 | 9 | = 9 |
5 | = 5 | 10 | = 10 |
The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is 299,792,458 metres per second (approximately 3.00×108 m/s, or 186,282 mi/s); it is exact because the unit of length, the metre, is defined from this constant and the international standard for time.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
speed of light | c | ≡ 299792458 m/s | = 299792458 m/s | Other Speed |
speed of lights | speed of lights | speed of lights | speed of lights |
---|---|---|---|
1 | = 1 | 6 | = 6 |
2 | = 2 | 7 | = 7 |
3 | = 3 | 8 | = 8 |
4 | = 4 | 9 | = 9 |
5 | = 5 | 10 | = 10 |
speed of lights | speed of lights |
---|---|
1 | = 1 |
1 | = 1 |
You can find the conversion in other languages in the following:
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |