How NCAA indoor conversions work
The NCAA Indoor Track Facility Indexing Conversion Summary gives one multiplier per event, sex and track type. In the NCAA’s words, “actual times in seconds should be multiplied by the number in the chart for that event and track type to the desired track type, and then converted back from seconds if applicable.”
NCAA rules define the standard indoor track as 200 m. A track is flat if its lateral inclination is no more than 0.1 %; any steeper track counts as banked. Banked and oversized tracks share one category, and NCAA qualifying lists are built on banked/oversized times.
NCAA conversion factors — Men
| Event | Undersized → flat | Banked/oversized → flat | Undersized → banked | Flat → banked |
|---|---|---|---|---|
| 200m | 0.9872 | 1.0179 | 0.9698 | 0.9824 |
| 400m | 0.9901 | 1.0160 | 0.9746 | 0.9843 |
| 500m* | 0.9909 | 1.0154 | 0.9758 | 0.9848 |
| 600y* | 0.9912 | 1.0152 | 0.9763 | 0.9850 |
| 600m* | 0.9915 | 1.0150 | 0.9768 | 0.9852 |
| 800m | 0.9923 | 1.0143 | 0.9783 | 0.9859 |
| 1000m | 0.9929 | 1.0138 | 0.9794 | 0.9864 |
| Mile | 0.9941 | 1.0128 | 0.9816 | 0.9874 |
| 3000m | 0.9953 | 1.0116 | 0.9839 | 0.9885 |
| 5000m | 0.9961 | 1.0107 | 0.9855 | 0.9894 |
| 4x400m | 0.9901 | 1.0160 | 0.9746 | 0.9843 |
| 4x800m* | 0.9923 | 1.0143 | 0.9783 | 0.9859 |
| DMR | 0.9931 | 1.0136 | 0.9798 | 0.9866 |
NCAA conversion factors — Women
| Event | Undersized → flat | Banked/oversized → flat | Undersized → banked | Flat → banked |
|---|---|---|---|---|
| 200m | 0.9900 | 1.0155 | 0.9749 | 0.9847 |
| 400m | 0.9929 | 1.0133 | 0.9799 | 0.9869 |
| 500m* | 0.9937 | 1.0127 | 0.9812 | 0.9874 |
| 600y* | 0.9940 | 1.0125 | 0.9818 | 0.9877 |
| 600m* | 0.9943 | 1.0122 | 0.9823 | 0.9879 |
| 800m | 0.9951 | 1.0115 | 0.9838 | 0.9886 |
| 1000m* | 0.9958 | 1.0109 | 0.9850 | 0.9892 |
| Mile | 0.9969 | 1.0099 | 0.9871 | 0.9902 |
| 3000m | 0.9981 | 1.0086 | 0.9896 | 0.9915 |
| 5000m | 0.9989 | 1.0077 | 0.9913 | 0.9924 |
| 4x400m | 0.9929 | 1.0133 | 0.9799 | 0.9869 |
| 4x800m* | 0.9951 | 1.0115 | 0.9838 | 0.9886 |
| DMR | 0.9959 | 1.0107 | 0.9853 | 0.9894 |
Source: NCAA Indoor Track Facility Indexing Conversion Summary (2012). * Rows marked with an asterisk appear only in the USTFCCCA copy of the NCAA charts; the NCAA document notes that 500 m and 600 m conversions “can be easily established for use within conferences”. Reverse conversions (to undersized) use the reciprocal of the published factor.
Worked example
A man runs 48.50 for 400 m on a flat track. Flat → banked factor 0.9843: 48.50 × 0.9843 = 47.739, rounded up to 47.74 banked equivalent. A woman runs 2:10.00 (130.00 s) for 800 m on an undersized track: undersized → banked factor 0.9838 gives 127.894 s, rounded up to 2:07.90.
No altitude adjustment. The NCAA facility document covers track size and banking only. This calculator does not apply altitude conversions.
Also see the track event converter (1600 to mile, 3200 to 2 mile), the hand time to FAT converter and the track lane calculator.
Last reviewed: September 2026 · Health disclaimer