CSI Episode Count Comparison (Seasons)
How many episodes per CSI season? Compare 15 official season counts: seasons 1 to 15, 12 to 25 episodes each season with visual bars and complete tables.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| Season 1 Opener tier. | 23 episodes | 2000 CBS opener | CBS episode list: CSI S1, 23 episodes |
| Season 2 Ties opener. | 23 episodes | 2001 season | CBS episode list: CSI S2, 23 episodes |
| Season 3 Standard tier. | 23 episodes | 2002 season | CBS episode list: CSI S3, 23 episodes |
| Season 4 Standard tier. | 23 episodes | 2003 season | CBS episode list: CSI S4, 23 episodes |
| Season 5 Top here. | 25 episodes | 2004 season | CBS episode list: CSI S5, 25 episodes |
| Season 6 Below Season 5. | 24 episodes | 2005 season | CBS episode list: CSI S6, 24 episodes |
| Season 7 Ties Season 6. | 24 episodes | 2006 season | CBS episode list: CSI S7, 24 episodes |
| Season 8 Strike cut tier. | 17 episodes | 2007 strike season | CBS episode list: CSI S8, 17 episodes |
| Season 9 Standard top tier. | 24 episodes | 2008 season | CBS episode list: CSI S9, 24 episodes |
| Season 10 Standard tier. | 23 episodes | 2009 season | CBS episode list: CSI S10, 23 episodes |
| Season 11 Below Season 10. | 22 episodes | 2010 season | CBS episode list: CSI S11, 22 episodes |
| Season 12 Ties Season 11. | 22 episodes | 2011 season | CBS episode list: CSI S12, 22 episodes |
| Season 13 Standard tier. | 22 episodes | 2012 season | CBS episode list: CSI S13, 22 episodes |
| Season 14 Standard tier. | 22 episodes | 2013 season | CBS episode list: CSI S14, 22 episodes |
| Season 15 Finale tier. | 18 episodes | 2014 final season | CBS episode list: CSI S15, 18 episodes |
About this converter
CSI seasons run 17 to 25 episodes on CBS lists. Season 8 at 17 reflects the strike cut. Season 15 finale at 18 follows. Season 11 through Season 14 at 22 each, Season 1 through Season 4 and Season 10 at 23 each hold mid tiers. Season 6, Season 7 and Season 9 at 24 each bridge upward. Season 5 at 25 tops the table. That makes the longest season just over one and four tenths times the strike season. The show never wavers far from 23 across fifteen seasons. All rows pin official lists.
How to use it
Pick two seasons and a unit in the top row. The three boxes below stay linked. Change any box and the other two update. One box holds a count of the first season, one holds the matching count of the second, one holds total episodes. Try Season 5 against Season 8.
Backdoor pilots for Miami and NY count inside season totals. TV films stay out of season rows. Strike season stays labeled as such. Vegas sequel counts live on their own pages and stay out. Crossover episodes count once like all others. Trilogy episodes air once per series and count once.
FAQ
How many episodes in Season 1?
23 episodes on CBS.
Which season is longest?
Season 5 with 25 episodes.
Why is Season 8 short?
The 2007-08 strike cut it to 17.
Where are these counts from?
CBS official CSI episode lists per season.
Sources
- CBS episode lists: CSI S1 23, S2 23, S3 23, S4 23, S5 25
- CBS episode lists: CSI S6 24, S7 24, S8 17, S9 24, S10 23
- CBS episode lists: CSI S11 22, S12 22, S13 22, S14 22, S15 18
Last verified: 2026-10-03 · 15 entries
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