2012 Big Ten Conference Leaders Turnover Margin - Games in August/September Only through 01/07/2013
| Name | G | Fum. Gain | Int. Gain | Total Gain | Fum. Lost | Int. Lost | Total Lost | Margin | Margin/G | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Penn State | 5 | 7 | 4 | 11 | 2 | 2 | 4 | 7 | 1.40 |
| 1 | Iowa | 5 | 4 | 6 | 10 | 1 | 2 | 3 | 7 | 1.40 |
| 3 | Indiana | 4 | 2 | 3 | 5 | 0 | 2 | 2 | 3 | 0.75 |
| 4 | Purdue | 4 | 4 | 8 | 12 | 4 | 6 | 10 | 2 | 0.50 |
| 4 | Michigan State | 5 | 5 | 4 | 9 | 3 | 4 | 7 | 2 | 0.40 |
| 4 | Ohio State | 5 | 2 | 7 | 9 | 4 | 3 | 7 | 2 | 0.40 |
| 4 | Northwestern | 5 | 6 | 2 | 8 | 4 | 2 | 6 | 2 | 0.40 |
| 8 | Minnesota | 5 | 3 | 7 | 10 | 4 | 5 | 9 | 1 | 0.20 |
| 9 | Nebraska | 5 | 5 | 3 | 8 | 9 | 2 | 11 | -3 | -0.60 |
| 9 | Wisconsin | 5 | 3 | 0 | 3 | 4 | 2 | 6 | -3 | -0.60 |
| 11 | Illinois | 5 | 6 | 4 | 10 | 6 | 8 | 14 | -4 | -0.80 |
| 12 | Michigan | 4 | 2 | 2 | 4 | 1 | 10 | 11 | -7 | -1.75 |