The 31-year-old has agreed to join the Championship outfit for an undisclosed fee on a deal which runs until June 30, 2017.
Revell, who has also played for Wycombe Wanderers and Swindon Town, has history with Cardiff boss Russell Slade as he was the coach who signed him in 2010 at Leyton Orient.
The striker has scored four goals in 26 appearances for Rotherham this season.
Restore Data
| Team | P | W | D | L | F | A | GD | PTS | |
| 1 | Sunderland | 3 | 3 | 0 | 0 | 7 | 0 | 7 | 9 |
| 2 | Watford | 3 | 3 | 0 | 0 | 8 | 3 | 5 | 9 |
| 3 | Blackburn RoversBlackburn | 3 | 2 | 1 | 0 | 8 | 5 | 3 | 7 |
| 4 | West Bromwich AlbionWest Brom | 3 | 2 | 1 | 0 | 5 | 2 | 3 | 7 |
| 5 | Burnley | 3 | 2 | 0 | 1 | 9 | 2 | 7 | 6 |
| 6 | Leeds UnitedLeeds | 3 | 1 | 2 | 0 | 5 | 3 | 2 | 5 |
| 7 | Bristol City | 3 | 1 | 2 | 0 | 6 | 5 | 1 | 5 |
| 8 | Swansea CitySwansea | 3 | 1 | 1 | 1 | 4 | 2 | 2 | 4 |
| 9 | Coventry CityCoventry | 3 | 1 | 1 | 1 | 4 | 4 | 0 | 4 |
| 10 | Middlesbrough | 3 | 1 | 1 | 1 | 3 | 3 | 0 | 4 |
| 11 | Sheffield UnitedSheff Utd | 3 | 1 | 2 | 0 | 5 | 3 | 2 | 3 |
| 12 | Oxford UnitedOxford Utd | 3 | 1 | 0 | 2 | 5 | 5 | 0 | 3 |
| 13 | Portsmouth | 3 | 0 | 3 | 0 | 5 | 5 | 0 | 3 |
| 14 | Hull City | 3 | 0 | 3 | 0 | 2 | 2 | 0 | 3 |
| 15 | Sheffield WednesdaySheff Weds | 3 | 1 | 0 | 2 | 4 | 6 | -2 | 3 |
| 16 | Derby CountyDerby | 3 | 1 | 0 | 2 | 4 | 6 | -2 | 3 |
| 17 | Stoke CityStoke | 3 | 1 | 0 | 2 | 2 | 5 | -3 | 3 |
| 18 | Preston North EndPreston | 3 | 1 | 0 | 2 | 1 | 5 | -4 | 3 |
| 19 | Queens Park RangersQPR | 3 | 0 | 2 | 1 | 4 | 6 | -2 | 2 |
| 20 | Norwich CityNorwich | 3 | 0 | 2 | 1 | 3 | 5 | -2 | 2 |
| 21 | Plymouth ArgylePlymouth | 3 | 0 | 2 | 1 | 2 | 6 | -4 | 2 |
| 22 | Millwall | 3 | 0 | 1 | 2 | 5 | 7 | -2 | 1 |
| 23 | Luton TownLuton | 3 | 0 | 1 | 2 | 1 | 5 | -4 | 1 |
| 24 | Cardiff CityCardiff | 3 | 0 | 1 | 2 | 1 | 8 | -7 | 1 |
| > Championship Full Table | |||||||||
