Here’s the split for Law & Order episodes by season range:

html

<table>
  <tr>
    <th>Season range</th>
    <th>Approx. episode span</th>
    <th>What it covers</th>
  </tr>
  <tr>
    <td>S1 to S12</td>
    <td>Episodes 1 to 277</td>
    <td>From the series premiere in 1990 through the end of Season 12 in 2002.</td>
  </tr>
  <tr>
    <td>S13 to S25</td>
    <td>Episodes 278 to 544</td>
    <td>From Season 13 in 2002 through Season 25 in 2026.</td>
  </tr>
</table>

Season split

Season 12 ends at episode 277, and Season 13 begins at episode 278. The full episode list confirms that Seasons 1–12 and Seasons 13–25 are a clean division point for the series.

Easy way to think about it

  • S1–S12 = the early-to-middle era.
  • S13–S25 = the later era, including the newest seasons currently listed.
  • If you’re organizing files, playlists, or a watch order, this split is a practical one because it matches the season boundary.

Episode count by range

  • S1–S12: 277 episodes total.
  • S13–S25: 267 episodes total, based on the episode numbering shown through Season 25.

If you want, I can also turn this into a season-by-season episode count table in HTML.