Episodes
499
23 seasons
499 episodes · 23 seasons · 374.3 hours to binge
499
23 seasons
374.3 h
15d 14h
15 days
non-stop
7.6/10
2,449 votes
NCIS runs to 499 episodes across 23 seasons, at roughly 45 minutes each. Watching every episode back to back is 374.3 hours of pure run time — that's 15 days and 14 hours without a single break.
More realistically, at two episodes a night you'll finish in about 250 days. That's 46.8 full 8-hour work days of screen time. Use the planner below to pick your own pace and get an exact finish date.
374.3 h
Pure run time
250 days
At 2 episodes/day
45 min
Per episode
Day 250: 100% done (499 of 499 episodes)
21.7
on average
16.3 h
on average
22,455
15 days non-stop
At 374.3 hours, NCIS is longer than 99% of every series tracked here — making it true marathon material. Within the Crime genre the average is 64.6 hours, so NCIS sits above that.
NCIS is very well rated at 7.6/10 from 2,449 votes. With 374.3 hours of total run time it's a genuine long-haul marathon — plan accordingly before you press play.
All 499 episodes of NCIS add up to 374.3 hours of pure run time — that's 15 days and 14 hours non-stop.
NCIS has 499 episodes across 23 seasons, averaging about 45 minutes per episode.
At 1 episode a day it takes 499 days, at 2 episodes a day 250 days, and at a marathon pace of 8 a day just 63 days.
NCIS is rated 7.6/10 from 2,449 votes. Budget 374.3 hours if you want to watch the whole thing.
Episodes, seasons and rating come from TMDB (as of 2/12/2026). NCIS had no official per-episode runtime on file, so the 45 minutes shown are a genre-based estimate.
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