how long is project hail mary
Project Hail Mary can mean either the book or the upcoming movie , so here’s both:
How long is Project Hail Mary (movie)?
Recent studio and director confirmations put the official runtime at about 2 hours and 36 minutes (156 minutes), including credits. Early cinema listings briefly showed a longer cut (around 2 hours 46 minutes), which caused confusion, but that has since been corrected by PR reps and the filmmakers.
Quick movie facts
- Official runtime: ~156 minutes / 2h 36m.
- Conflicting early listings: up to 166 minutes / 2h 46m , now walked back.
- Release window: reviews dated March 2026 discuss the theatrical opening around March 20, 2026.
So if you’re planning a theater trip, you’re in for a fairly long, epic- style sci‑fi session, closer to Dune: Part Two than a brisk 90‑minute movie.
How long is Project Hail Mary (book)?
If you meant the novel by Andy Weir :
- Print length: about 496 pages in common editions.
- Estimated word count: roughly 124,000 words.
- Estimated reading time at ~250 words/min: about 8 hours 16 minutes of actual reading.
Reading-time breakdown
- Fast reader (300–350 wpm): roughly 6–7 hours total. (Derived from the 124k word estimate and typical reading speeds.)
- Average reader (around 250 wpm): ~8+ hours.
- Casual pace, ~30 minutes per day: about 17 days to finish.
The book mixes conversational storytelling with real science, so most people find it quick-moving but occasionally slow down on the more technical bits.
Mini comparison table
| Version | “How long” | Details |
|---|---|---|
| Movie | ~2h 36m | |
| Book | ~8h 16m to read | Approx. 124,000 words; ~496 pages; based on 250 wpm average reading speed. | [2][9]
If you’re deciding what to do tonight
- Want a single sitting experience: the movie’s 2.5+ hours is a solid night out.
- Up for a multi-day immersion : the book can comfortably fill a week or two of evening reading.
TL;DR:
- Movie: about 2 hours 36 minutes.
- Book: about 8 hours of reading for an average reader.
Information gathered from public forums or data available on the internet and portrayed here.