smithery/bybren-llc
page-estimation
This skill provides screenplay page count and runtime estimation formulas. Covers the page-to-screen rule (1 page = 1 minute), genre adjustments, target lengths for features vs shorts, and element-based calculations. Use when: estimating screenplay length, calculating runtime, tracking page count, or validating target length for submission requirements.
Use judgment
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SKILL.md
Page Estimation Skill
Invocation Triggers
Apply this skill when:
Estimating screenplay length
Calculating runtime
Tracking page count
Validating target length
The Page-to-Screen Rule
Standard Formula
1 page of screenplay ≈ 1 minute of screen time
Genre Adjustments
Genre
Adjustment
Typical Length
Action
0.8-0.9 min/page
95-115 pages
Comedy
1.0 min/page
90-110 pages
Drama
1.0-1.1 min/page
100-120 pages
Thriller
0.9-1.0 min/page
100-115 pages
Horror
0.9-1.0 min/page
85-100 pages
Animation
0.7-0.8 min/page
75-95 pages
Why It Varies
Action-heavy scripts: More white space, faster pace → shorter pages
Dialogue-heavy scripts: Dense pages → longer runtime per page
Visual storytelling: Less text, more subtext → varies
Estimation Methods
Method 1: Element Count
Rough estimate based on script elements:
Scenes: 60 scenes × 1.5 pages avg = 90 pages
Adjustment for dialogue density: +10%
Estimated: ~99 pages
Method 2: Word Count
Total words: 20,000
Average screenplay: 180-200 words/page
Estimated: 20,000 ÷ 190 = 105 pages
Method 3: Structural Estimate
Act One (Setup): 25 pages
Act Two (Confrontation): 55 pages
Act Three (Resolution): 25 pages
Total: 105 pages
Method 4: Scene-by-Scene
Most accurate:
| Scene | Est. Pages |
|-------|-----------|
| 1 | 2 |
| 2 | 1.5 |
| 3 | 3 |
| ... | ... |
| Total | X |
Fountain Page Count
Title Page
Always counts as page 1
Not numbered in output
Adds ~1 page to total
Scene Headings
Each scene heading takes ~2 lines
55-60 lines per page standard
Many short scenes = more page overhead
Dialogue vs. Action
Dialogue: ~35-40 lines per page (narrower column)
Action: ~55-60 lines per page (full width)
Heavy dialogue = fewer scenes per page
Elements That Add Length
Dual dialogue (takes more vertical space)
Parentheticals (extra lines)
Transitions (blank lines before/after)
Page breaks (forced ===)
Target Lengths
Feature Films
Market
Target
Range
Studio
110
100-120
Indie
95
85-110
Spec
105
95-115
Comedy
100
90-110
Television
Format
Target
Range
Half-hour (single cam)
30
25-35
Half-hour (multi-cam)
50
45-55
One-hour drama
55
50-65
Limited series (episode)
60
55-70
Short Films
Duration
Pages
5 min
5
10 min
10
15 min
15
20 min
20
Tracking Template
Page Count Log
## Page Tracking: [TITLE]
### Current Status
- **Total Pages:** [X]
- **Target:** [Y]
- **Variance:** [+/- Z]
### By Act
| Act | Pages | Target | Status |
|-----|-------|--------|--------|
| One | X | 25 | [over/under/ok] |
| Two | X | 55 | [over/under/ok] |
| Three | X | 25 | [over/under/ok] |
### Historical
| Date | Pages | Change | Note |
|------|-------|--------|------|
| 2025-12-20 | 85 | -- | First draft start |
| 2025-12-25 | 102 | +17 | First draft complete |
| 2025-12-27 | 98 | -4 | Trim pass |
Runtime Calculation
Formula
Runtime (minutes) = Pages × Genre Factor
Calculator
Pages: 105
Genre: Thriller (0.95)
Estimated Runtime: 105 × 0.95 = 99.75 minutes
Formatted: 1h 40m
By Scene
| Scene | Pages | Runtime |
|-------|-------|---------|
| 1 | 2 | 2 min |
| 2 | 3 | 3 min |
| ... | ... | ... |
| Total | 105 | 105 min |
Adjusting Length
Too Long
Cut scenes: Remove non-essential scenes
Combine scenes: Merge scenes with similar purpose
Trim dialogue: Reduce line count
Tighten action: Cut verbose descriptions
Enter later/leave earlier: Trim scene edges
Too Short
Add character moments: Deepen relationships
Expand key scenes: Give weight to important moments
Add B-story: Strengthen subplots
Develop obstacles: More complications
Add breathing room: Moments of reflection
Red Flags
Feature spec over 120 pages: Instant rejection risk
Feature spec under 90 pages: Feels slight
TV spec off by more than 5 pages: Format unfamiliarity
Quick Reference
Scene Page Estimates
Scene Type
Typical Length
Short dialogue
1/2 - 1 page
Standard dialogue
2 - 3 pages
Action sequence
3 - 5 pages
Major confrontation
4 - 6 pages
Montage
1 - 2 pages
Establishing
1/4 - 1/2 page
Structural Landmarks (110-page feature)
Beat
Target Page
Catalyst
10-12
Break Into Two
25
Midpoint
55
All Is Lost
75
Break Into Three
85
Climax
100-105
Resolution
105-110
Validation Checklist