1/9 Mile Track Lap Time Conversion Chart
| Time | MPH | Time | MPH | Time | MPH | ||
| 3.75 | 106.665 | 6.25 | 63.999 | 8.75 | 45.714 | ||
| 3.80 | 105.262 | 6.30 | 63.491 | 8.80 | 45.454 | ||
| 3.85 | 103.895 | 6.35 | 62.991 | 8.85 | 45.197 | ||
| 3.90 | 102.563 | 6.40 | 62.499 | 8.90 | 44.943 | ||
| 3.95 | 101.265 | 6.45 | 62.015 | 8.95 | 44.692 | ||
| 4.00 | 99.999 | 6.50 | 61.538 | 9.00 | 44.444 | ||
| 4.05 | 98.764 | 6.55 | 61.068 | 9.05 | 44.198 | ||
| 4.10 | 97.560 | 6.60 | 60.605 | 9.10 | 43.956 | ||
| 4.15 | 96.384 | 6.65 | 60.150 | 9.15 | 43.715 | ||
| 4.20 | 95.237 | 6.70 | 59.701 | 9.20 | 43.478 | ||
| 4.25 | 94.117 | 6.75 | 59.259 | 9.25 | 43.243 | ||
| 4.30 | 93.022 | 6.80 | 58.823 | 9.30 | 43.010 | ||
| 4.35 | 91.953 | 6.85 | 58.393 | 9.35 | 42.780 | ||
| 4.40 | 90.908 | 6.90 | 57.970 | 9.40 | 42.553 | ||
| 4.45 | 89.887 | 6.95 | 57.553 | 9.45 | 42.328 | ||
| 4.50 | 88.888 | 7.00 | 57.142 | 9.50 | 42.105 | ||
| 4.55 | 87.911 | 7.05 | 56.737 | 9.55 | 41.884 | ||
| 4.60 | 86.956 | 7.10 | 56.337 | 9.60 | 41.666 | ||
| 4.65 | 86.021 | 7.15 | 55.943 | 9.65 | 41.450 | ||
| 4.70 | 85.105 | 7.20 | 55.555 | 9.70 | 41.237 | ||
| 4.75 | 84.210 | 7.25 | 55.172 | 9.75 | 41.025 | ||
| 4.80 | 83.332 | 7.30 | 54.794 | 9.80 | 40.816 | ||
| 4.85 | 82.473 | 7.35 | 54.421 | 9.85 | 40.609 | ||
| 4.90 | 81.632 | 7.40 | 54.053 | 9.90 | 40.404 | ||
| 4.95 | 80.807 | 7.45 | 53.691 | 9.95 | 40.201 | ||
| 5.00 | 79.999 | 7.50 | 53.333 | 10.00 | 40.000 | ||
| 5.05 | 79.207 | 7.55 | 52.980 | 10.05 | 39.801 | ||
| 5.10 | 78.430 | 7.60 | 52.631 | 10.10 | 39.604 | ||
| 5.15 | 77.669 | 7.65 | 52.287 | 10.15 | 39.408 | ||
| 5.20 | 76.922 | 7.70 | 51.947 | 10.20 | 39.215 | ||
| 5.25 | 76.190 | 7.75 | 51.612 | 10.25 | 39.024 | ||
| 5.30 | 75.471 | 7.80 | 51.281 | 10.30 | 38.835 | ||
| 5.35 | 74.766 | 7.85 | 50.955 | 10.35 | 38.647 | ||
| 5.40 | 74.073 | 7.90 | 50.632 | 10.40 | 38.461 | ||
| 5.45 | 73.394 | 7.95 | 50.314 | 10.45 | 38.277 | ||
| 5.50 | 72.726 | 8.00 | 49.999 | 10.50 | 38.095 | ||
| 5.55 | 72.071 | 8.05 | 49.689 | 10.55 | 37.914 | ||
| 5.60 | 71.428 | 8.10 | 49.382 | 10.60 | 37.735 | ||
| 5.65 | 70.796 | 8.15 | 49.079 | 10.65 | 37.558 | ||
| 5.70 | 70.175 | 8.20 | 48.780 | 10.70 | 37.383 | ||
| 5.75 | 69.564 | 8.25 | 48.484 | 10.75 | 37.209 | ||
| 5.80 | 68.965 | 8.30 | 48.192 | 10.80 | 37.037 | ||
| 5.85 | 68.375 | 8.35 | 47.904 | 10.85 | 36.866 | ||
| 5.90 | 67.796 | 8.40 | 47.619 | 10.90 | 36.697 | ||
| 5.95 | 67.226 | 8.45 | 47.337 | 10.95 | 36.529 | ||
| 6.00 | 66.666 | 8.50 | 47.058 | 11.00 | 36.363 | ||
| 6.05 | 66.115 | 8.55 | 46.783 | 11.05 | 36.199 | ||
| 6.10 | 65.573 | 8.60 | 46.511 | 11.10 | 36.036 | ||
| 6.15 | 65.040 | 8.65 | 46.242 | 11.15 | 35.874 | ||
| 6.20 | 64.515 | 8.70 | 45.976 | 11.20 | 35.714 |