八分之一页计算器
像执行副导演那样把剧本拆成八分之一页
粘贴你的剧本，这个免费计算器就会把每一场戏量成八分之一页，也就是执行副导演和制片主任用来做拆解和拍摄计划的单位。支持 Fountain 或普通剧本文本，从单场戏到整部长片都行。
副导演把每一页剧本分成 8 条大约两厘米半宽的横条，再拿每一场戏去比对。一个短短的定场镜头是 1/8，一场很长的对白戏可能是 2 4/8。这些八分之一直接写进拆解表和进度板，也就在那里决定了一个拍摄日装得下多少内容。
全部在你的浏览器里运行。你的剧本从不离开这个页面，也不会被发送到任何服务器。
把剧本粘到上面就能看到拆解结果。
工作原理
计算器在每个场景标题处把你的文本切成场次，数出每场里非空的行数，再按「一页剧本 55 行、分成 8 个八分之一」的标准换算成八分之一。每场戏至少算 1/8，因为哪怕一个两秒的插入镜头，在那一天里也要占掉一个机位。合计会按你选的每天页数节奏，喂给拍摄日估算，用的档位和我们的拍摄天数计算器一致。
八分之一页怎么算
传统做法是物理的：把尺子压在打印出来的页面上，分成 8 条横条，标出每场戏起于哪里、止于哪里。占三条的戏就是 3/8。这个计算器把那次测量自动化了，按 Courier 12pt 在 US Letter 纸上得出的 55 行页面来数行，于是你一粘上稿子，每场戏的八分之一页数就出来了。
八分之一有一条严格的制作惯例：它们从不约分。2/8 就写 2/8，不写 1/4；超过一页的戏写成 1 2/8。原因在于进度板上的算术。当每一条都用同一个分母 8 时，副导演能在脑子里把一天的戏加起来，立刻知道 5 2/8 页塞不塞得进这个计划。
八分之一之所以重要，是因为它喂养了拆解之后的一切。每场戏的八分之一变成进度板上的条子，条子变成拍摄日，拍摄日变成预算。一部 90 页的长片是 720 个八分之一；按低成本每天 5 页的节奏，那就是 18 个拍摄日。用八分之一去量，正是一个剧本不再是文学、开始成为方案的那一刻。
适合谁
- 执行副导演和制片主任 在做完整拆解和进度板之前，几秒钟就拿到每场戏的八分之一。
- 独立制片 看看剧本真实的场次负荷，和预算撑得起的拍摄日数对不对得上。
- 编剧和电影专业学生 看清哪些场次承担了最重的制作分量，并学会像排计划的人那样读剧本。
Script Eighths Calculator: the complete guide
It splits your script at each slugline, counts lines against the standard 55-line page, and reports every scene's length in production-style eighths that are never simplified.
For this workflow, the central problem is clear: measuring every scene in eighths with a ruler is slow, and skipping it leaves the schedule built on guesses. Left unresolved, this creates downstream friction and slower decisions. The practical target is a per-scene eighths table with totals and a shoot day estimate, ready to feed the breakdown and stripboard.
Limitation to keep in mind: It measures script length, not shooting difficulty; a 1/8 stunt can outweigh a 4/8 dialogue scene, so complexity still needs human judgment on the board.
Advanced workflow: Advanced teams export the CSV, add complexity and location columns, and use eighths per day as the running total when laying strips into shoot days.
Step-by-Step Workflow
- Paste the current shooting draft and confirm the scene count matches your own numbering before trusting the totals.
- Scan the per-scene eighths for outliers: any scene over a page deserves a look at whether it can split or shrink.
- Pick the pages-per-day tier that matches your crew, then compare the shoot day estimate against your calendar.
- Export the CSV into your breakdown sheet and re-run after each rewrite to track how the total moves.
Use Cases By Profile
- First AD: measure a full feature in seconds before committing days on the stripboard.
- Line producer: convert total eighths into shoot days at the pace the budget can actually pay for.
- Writer-director: spot which scenes carry the most page weight before locking the shooting draft.
Common Mistakes To Avoid
- Simplifying eighths to quarters or halves, which breaks quick addition on the stripboard.
- Treating eighths as shooting time instead of script length when planning a day.
- Measuring an early draft and never re-measuring the locked shooting script.
Professional Best Practices
- Flag every scene at 1/8 that involves stunts, VFX, or crowds; short scenes hide long days.
- Keep a running eighths-per-day tally when building days; 40 eighths is a common low-budget ceiling.
- Compare eighths totals between drafts to quantify how much a rewrite actually cut.
Treat this tool output as a decision support layer, not a replacement for authorship. Great scripts are remembered for specific choices, emotional precision, and clarity of dramatic movement. Tools help by removing noise so your energy can go where it matters: character, conflict, escalation, and payoff. If you review outcomes after each pass and keep an explicit log of accepted changes, your workflow becomes faster and more predictable from draft to draft. That consistency is exactly what professional collaborators value: fewer surprises, clearer rationale, and a script that evolves with intent.
Extended FAQ
What does 3/8 of a page mean in a script breakdown?
The scene occupies 3 of the 8 horizontal strips a screenplay page is divided into, roughly three inches of a printed page. It is the standard length unit on breakdown sheets and stripboards.
How is a script eighths chart used in scheduling?
Each scene's eighths go onto a strip, and the AD stacks strips into days until the day's total hits the crew's realistic capacity. The chart is the bridge between the script and the calendar.
Why do ADs use eighths instead of minutes?
Eighths can be measured from the page before anything is shot, and they add up cleanly across scenes. Minutes only exist after a cut; eighths exist at the breakdown stage, which is when the schedule gets built.
How many lines is one eighth of a page?
About 7 lines, since a standard Courier 12pt page holds roughly 55 lines and divides into 8 eighths. This calculator uses exactly that ratio, with a 1/8 minimum per scene.
Do page eighths work for TV scripts and shorts?
Yes. The unit is per page, so any screenplay-formatted document divides the same way. A half-hour episode of 30 pages is 240 eighths, and the same pages-per-day math applies.
Can I measure eighths from a Fountain file?
Yes. Paste the Fountain source directly; sluglines and forced scene headings starting with a period are both detected, and the line counting works the same as for plain screenplay text.
常见问题
它是为排计划而把一页剧本分成的 8 条横条之一。一场 1/8 的戏大约占页面两厘米半，也就是差不多 7 行。副导演这样量每一场戏，是因为八分之一在一个拍摄日里能干净地相加。
制作惯例让所有测量保持同一个分母 8，条子才能一眼相加。2/8 就是 2/8，4/8 就是 4/8。写成 1/4 或 1/2，会逼所有人在把戏加进一天之前先做一次换算。
对标准格式来说，它和用尺子量的结果非常接近，因为 Courier 12pt 在 US Letter 纸上大约是每页 55 行。不寻常的排版、密集的双栏对白或大量括号提示，可能让某一场偏出一个八分之一，所以那些卡在边界上的戏，值得手工核对一次。
都不直接是。八分之一量的是剧本长度，而剧本长度和拍摄的工作量相关。一场 1/8 的特技戏可能吃掉一整天，而一场 3/8 的对白戏两小时就能收工。这就是为什么排计划时要把八分之一和场次复杂度放在一起权衡。
取决于节奏。按低成本常见的每天 5 页算，剧组能覆盖 40 个八分之一。制片厂长片每天 2.5 页，覆盖 20 个。上面的每天页数选择器会把你的合计按各个档位换算成拍摄日。
