Episodes
100
7 seasons
100 episodes · 7 seasons · 70.0 hours to binge
100
7 seasons
70.0 h
2d 22h
2 days
non-stop
7.9/10
8,487 votes
The 100 runs to 100 episodes across 7 seasons, at roughly 42 minutes each. Watching every episode back to back is 70.0 hours of pure run time — that's 2 days and 22 hours without a single break.
More realistically, at two episodes a night you'll finish in about 50 days. That's 8.8 full 8-hour work days of screen time. Use the planner below to pick your own pace and get an exact finish date.
70.0 h
Pure run time
50 days
At 2 episodes/day
42 min
Per episode
Day 50: 100% done (100 of 100 episodes)
14.3
on average
10.0 h
on average
4,200
2 days non-stop
At 70.0 hours, The 100 is longer than 80% of every series tracked here — making it true marathon material. Within the Sci-Fi & Fantasy genre the average is 36.5 hours, so The 100 sits above that.
The 100 is very well rated at 7.9/10 from 8,487 votes. With 70.0 hours of total run time it's a serious commitment — plan accordingly before you press play.
All 100 episodes of The 100 add up to 70.0 hours of pure run time — that's 2 days and 22 hours non-stop.
The 100 has 100 episodes across 7 seasons, averaging about 42 minutes per episode.
At 1 episode a day it takes 100 days, at 2 episodes a day 50 days, and at a marathon pace of 8 a day just 13 days.
The 100 is rated 7.9/10 from 8,487 votes. Budget 70.0 hours if you want to watch the whole thing.
Episodes, seasons, runtime (42 min/episode) and rating come directly from TMDB (as of 2/12/2026).
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