Sylwer: Mae canlyniadau ffracsiynol wedi'u talgrynu i'r 1/64 agosaf. I gael ateb mwy cywir dewiswch 'degol' o'r opsiynau uwchben y canlyniad.
Sylwer: Gallwch gynyddu neu ostwng cywirdeb yr ateb hwn drwy ddewis nifer y ffigurau ystyrlon sydd eu hangen o'r opsiynau uwchben y canlyniad.
Sylwer: I gael canlyniad degol pur dewisiwch 'degol' o'r opsiynau uwchben y canlyniad.
Dyma fesuriad o gyflymder a ddefnyddir fel mater o drefn mewn gwledydd nad ydynt yn defnyddio'r system fetrig ar gyfer trafnidiaeth fel Unol Daleithiau America. Mae'r Deyrnas Unedig hefyd yn defnyddio hwn ar y ffyrdd er bod y system fetrig wedi'i mabwysiadu'n swyddogol. Rhoddir terfynau cyflymder ar y ffyrdd fesul milltir yr awr a gaiff ei dalfyrru fel mya neu mi/a.
| Milltir yr awr | Cyflymder golau |
|---|---|
| 0mph | 0.00c |
| 1mph | 0.00c |
| 2mph | 0.00c |
| 3mph | 0.00c |
| 4mph | 0.00c |
| 5mph | 0.00c |
| 6mph | 0.00c |
| 7mph | 0.00c |
| 8mph | 0.00c |
| 9mph | 0.00c |
| 10mph | 0.00c |
| 11mph | 0.00c |
| 12mph | 0.00c |
| 13mph | 0.00c |
| 14mph | 0.00c |
| 15mph | 0.00c |
| 16mph | 0.00c |
| 17mph | 0.00c |
| 18mph | 0.00c |
| 19mph | 0.00c |
| Milltir yr awr | Cyflymder golau |
|---|---|
| 20mph | 0.00c |
| 21mph | 0.00c |
| 22mph | 0.00c |
| 23mph | 0.00c |
| 24mph | 0.00c |
| 25mph | 0.00c |
| 26mph | 0.00c |
| 27mph | 0.00c |
| 28mph | 0.00c |
| 29mph | 0.00c |
| 30mph | 0.00c |
| 31mph | 0.00c |
| 32mph | 0.00c |
| 33mph | 0.00c |
| 34mph | 0.00c |
| 35mph | 0.00c |
| 36mph | 0.00c |
| 37mph | 0.00c |
| 38mph | 0.00c |
| 39mph | 0.00c |
| Milltir yr awr | Cyflymder golau |
|---|---|
| 40mph | 0.00c |
| 41mph | 0.00c |
| 42mph | 0.00c |
| 43mph | 0.00c |
| 44mph | 0.00c |
| 45mph | 0.00c |
| 46mph | 0.00c |
| 47mph | 0.00c |
| 48mph | 0.00c |
| 49mph | 0.00c |
| 50mph | 0.00c |
| 51mph | 0.00c |
| 52mph | 0.00c |
| 53mph | 0.00c |
| 54mph | 0.00c |
| 55mph | 0.00c |
| 56mph | 0.00c |
| 57mph | 0.00c |
| 58mph | 0.00c |
| 59mph | 0.00c |