Supergirl Episode Count Comparison (Seasons)
How many Supergirl episodes per season? Compare all 6 season counts plus the 126 total, from 19 in season 5 to 23 in season 3, with CBS and CW data. Data.
Visual comparison
All values
Click any row to load it as Entry A.
| Name | Value | Context | Source |
|---|---|---|---|
| Full series episodes Top here at 126 episodes. | 126 episodes | CBS and CW run, 2015 to 2021 | CBS and CW guides: Supergirl 126 episodes total |
| Season 1 episodes 20 episodes. CBS year. | 20 episodes | Season 1, 2015 to 2016, CBS | CBS guide: Season 1 20 episodes |
| Season 2 episodes 22 episodes. CW move. | 22 episodes | Season 2, 2016 to 2017, CW | CW guide: Season 2 22 episodes |
| Season 3 episodes Longest here at 23 episodes. | 23 episodes | Season 3, 2017 to 2018, CW | CW guide: Season 3 23 episodes |
| Season 4 episodes 22 episodes. | 22 episodes | Season 4, 2018 to 2019, CW | CW guide: Season 4 22 episodes |
| Season 5 episodes Lowest here at 19. Cut short. | 19 episodes | Season 5, 2019 to 2020, CW | CW guide: Season 5 19 episodes |
| Season 6 episodes Final season at 20. | 20 episodes | Season 6, 2021, CW | CW guide: Season 6 20 episodes |
About this converter
Supergirl ran 126 episodes from 2015 to 2021, first on CBS then on the CW. Season 3 is the longest at 23. Seasons 2 and 4 sit at 22 each. Seasons 1 and 6 sit at 20 each. Season 5 is the shortest at 19 after production stopped early. The full 126 equals more than 6 season 1 orders. The finale aired November 9 2021. All values follow CBS and CW season counts. The full 126 equals more than 6 season 1 orders. Season 3 at 23 is 4 more than season 5 at 19. Two years at 22 give 44 from seasons 2 and 4.
How to use it
Pick two entries 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 entry, one holds the matching count of the second, one holds total episodes. Try the full series against the shortest season.
Season 5 lost episodes when production stopped in 2020, which sets it at 19. The CBS to CW move did not reset the count. Crisis crossovers stay in their own totals where listed. No webisodes enter the rows. Only broadcast season episodes are counted. That gives 7 entries for full coverage. Alex episodes count the same as Jonn ones in the method used here. The finale aired as one hour but follows totals.
FAQ
How many Supergirl episodes exist?
126 episodes across 6 seasons.
Which season is longest?
Season 3 with 23 episodes.
Which season is shortest?
Season 5 with 19 episodes.
Did the CW move reset counts?
No. Season 2 continues the same series total.
Sources
- CBS official Supergirl guide (season 1 20) plus CW guide (season 2 22, season 3 23)
- CW episode guide (season 4 22, season 5 19, season 6 20, total 126)
Last verified: 2026-10-09 · 7 entries
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