Introduction
The line producer needs a shooting schedule by Friday. The script is 112 pages. The standard rule of thumb says "one minute per page," but that only works for mid-tempo drama with average dialogue density. An action sequence burns through three pages in 90 seconds. A slow, tension-building horror scene stretches one page to over a minute. A musical number can hold one page for 75 seconds while the song plays. The one-minute rule is a starting point that gets less accurate with every page.
The scene duration estimator converts script page counts to estimated screen time based on genre pacing, scene type, and a manual pace adjustment for directorial style. Enter a scene's page count in pages and eighths (the standard script measurement), select your genre and scene type, and get a low, expected, and high runtime estimate.
This is the tool that turns a script into a schedule, and a schedule into a budget.
What This Tool Calculates
The calculator accepts scene length in pages and eighths (the film industry standard where one page is divided into 8 equal parts), genre/pacing style, scene type, and an optional pace adjustment slider.
It returns three duration estimates: low (85% of expected), expected, and high (115% of expected). It also shows the effective pace in seconds per page, the estimated total script runtime based on your total page count, and a reference table showing how a 110-page script translates to runtime across every genre preset.
The Formula and How It Works
The base formula is: Scene Duration = Pages * Pace Per Page * Scene Type Modifier * Pace Adjustment.
The pace per page varies by genre. Drama averages 60 seconds per page (the classic 1:1 ratio). Action runs faster at 45 seconds per page because physical sequences compress more page space into less screen time. Horror and suspense average 65 seconds because tension requires holding shots longer. Art house and slow cinema run 80 seconds per page due to long takes and deliberate pacing.
Scene type modifiers adjust for content within a genre. Dialogue scenes are the baseline (1.0x). Action sequences compress to 0.7x. Montages compress further to 0.5x. Establishing shots and transitions are brief at 0.3x. Emotional dramatic beats expand to 1.15x. Monologues expand to 1.2x because a single character speaking fills screen time more slowly than multi-character dialogue.
Worked example: a 2 and 3/8 page dialogue scene in a horror film. Pages = 2.375. Pace = 65 sec/page. Modifier = 1.0 (dialogue). Duration = 2.375 * 65 * 1.0 = 154.4 seconds = 2 minutes 34 seconds. The range spans from 2:11 (low) to 2:58 (high).
Real-World Examples
Scheduling an Action Thriller Feature
A line producer received a 105-page action thriller script and needed a runtime estimate for the sales agent. Using the calculator with the "Action / Thriller" genre preset, the total script runtime came to approximately 79 minutes. However, the script included 15 pages of dialogue-heavy interrogation scenes. Re-estimating those 15 pages at the drama pace (60 sec/page) added 3.75 minutes, bringing the total to about 83 minutes. The final cut came in at 81 minutes, validating the blended estimate.
Budget Planning for a Slow Cinema Art Film
A first-time director with a 90-page art house screenplay used the estimator with the "Art House / Slow Cinema" preset. The calculator showed an expected runtime of 120 minutes, 30 minutes longer than the standard 1:1 rule would suggest. This meant more shooting days, more film stock (the director was shooting on 16mm), and a larger post-production budget. The producer adjusted the budget upward by 15% based on the longer runtime estimate, avoiding a mid-production funding shortfall.
AD Scheduling Individual Scenes for a Shoot Day
An assistant director building the daily schedule used the estimator for each scene on a 6-scene shoot day. A 3-page dialogue scene (3 min), a 1/2-page establishing shot (9 sec), a 2-page emotional beat (2 min 18 sec), a 4-page action sequence (2 min 6 sec), a 1-page montage (30 sec), and a 1.5-page speech (1 min 48 sec). Total screen time: approximately 10 minutes. The AD used these estimates to allocate setup and rehearsal time proportionally, giving the action sequence the most coverage time despite having fewer screen minutes.
Genre Pacing Reference (110-Page Script)
| Genre | Pace (sec/page) | Estimated Runtime | Notes |
|---|---|---|---|
| Action / Thriller | 45 | ~83 min | Fast cuts, physical sequences compress pages |
| Comedy | 50 | ~92 min | Snappy dialogue, slightly faster than drama |
| Animation | 55 | ~101 min | Varies widely by style and studio |
| Drama | 60 | ~110 min | Standard 1:1 baseline |
| Horror / Suspense | 65 | ~119 min | Tension holds, slow builds extend runtime |
| Documentary (narrated) | 70 | ~128 min | B-roll pacing, narrator cadence |
| Musical | 75 | ~138 min | Songs and dance extend sequences |
| Art House / Slow Cinema | 80 | ~147 min | Long takes, silence, deliberate pacing |
Pro Tips and Common Mistakes
Pro Tips
- Use the eighths system that ADs and script supervisors use on set. One page equals 8 eighths. A scene marked '2 3/8' in the breakdown is 2 pages and 3 eighths (2.375 pages). This granularity matters because a single eighth at 60 sec/page is 7.5 seconds of screen time.
- Blend genre presets for scripts that cross genres. A horror comedy might average between the horror (65 sec/page) and comedy (50 sec/page) presets. Use the pace adjustment slider to fine-tune rather than picking a single genre that doesn't quite fit.
- First-time directors tend to shoot scenes that run 10-20% longer than the estimate because they hold shots longer and use fewer cuts. Add +10% to +15% with the pace adjustment slider when scheduling for a debut director.
- Use scene-level estimates for the shoot schedule (daily page counts) and the full-script estimate for the sales agent, distributor, and festival submission timeline. These are different audiences who need different levels of precision.
Common Mistakes
- Applying the 1-minute-per-page rule uniformly across all genres. An action script at 120 pages does not produce a 120-minute film. It is more likely to produce a 90-minute film because action sequences compress page space into shorter screen time.
- Forgetting that montage sequences and establishing shots are extremely compressed. A 2-page montage might only produce 60 seconds of screen time, not 2 minutes. Failing to account for this inflates the runtime estimate.
- Not adjusting for directorial style. A Terrence Malick film and a Michael Bay film from the same 110-page script would produce dramatically different runtimes. The pace adjustment slider exists for exactly this reason.
Frequently Asked Questions
How accurate is the one-minute-per-page rule?
It is reasonably accurate for standard drama with average dialogue density, which is why it has persisted as an industry rule of thumb. It becomes less accurate for action (faster), horror (slower), art house (much slower), and musicals (slower due to songs). For non-drama genres, expect 15-30% deviation from the 1:1 ratio.
What are eighths in script measurement?
Eighths are the standard subdivision of a script page used by assistant directors and script supervisors. One page is divided into 8 equal sections. A scene described as '1 3/8 pages' is one page plus three-eighths of a page (1.375 pages total). This precision matters for scheduling because even a quarter-page difference affects daily page counts and call times.
Should I estimate scenes individually or the whole script at once?
Both, for different purposes. Individual scene estimates help build the daily shooting schedule and allocate coverage time. The whole-script estimate gives you the expected runtime for distributors, sales agents, and festival submissions. When scene types vary significantly (a mix of action, dialogue, and montage), individual estimates summed together will be more accurate than a single whole-script calculation.
How does this work for TV versus film?
The pacing formulas apply equally to television. A 55-page TV drama script at 60 sec/page produces approximately 55 minutes, typical for a one-hour cable drama. Sitcoms with multi-camera setups tend to run slightly faster (50-55 sec/page) due to faster cutting rhythms. Adjust the genre preset and pace slider to match your specific show's editing style.
Start Calculating
Every production decision downstream of the script depends on an accurate runtime estimate. Scheduling, budgeting, catering, equipment rental, and distribution all start with the question: how long is this film going to be?
Enter your scene page count above and see how genre, scene type, and pacing style affect the answer. What genre do you work in most, and how close does the 1-minute-per-page rule actually get for your projects?
