Screenplay Runtime Calculator
How long will your film run? Enter your page count, or paste your screenplay, and get an estimated runtime in seconds, along with scene count and your most talkative characters. Free, no sign-up, and your script never leaves your device.
Free tool · Works in your browser
1. I know my page count
2. Paste my screenplay
Paste plain text or Fountain. Everything is calculated on your device. Nothing is uploaded.
Most lines of dialogue
How the estimate works
The film industry estimates screen time with a simple rule: one page of a properly formatted screenplay is about one minute on screen. The calculator applies that rule. For multi-camera sitcoms, whose dialogue is double-spaced, it counts about half a minute per page.
When you paste a script, the calculator lays it out the way a screenplay page would: action lines about 60 characters wide, dialogue about 35, and roughly 54 lines to a page. That gives an estimated page count, and from it an estimated runtime.
It's an estimate, not a stopwatch. Action-heavy scenes run longer than their pages, and fast dialogue runs shorter. Over a whole script the differences usually even out.
Kashna Script lays out every page to industry format while you write, so your page count is always a real page count. Join the early access list.
Getting an accurate count
- Put scene headings on their own line, starting with INT. or EXT.
- Put character names in capital letters on their own line, with the dialogue directly underneath.
- Leave one blank line between elements, as in a normal screenplay.
- If your script is in Final Draft or another app, copy the text and paste it here. Formatting doesn't need to come along.
Frequently asked questions
How many minutes is one page of a screenplay?
About one minute of screen time, when the script is written in standard screenplay format. Multi-camera sitcom pages run about half a minute because their dialogue is double-spaced.
How long is a 90-page screenplay?
About 90 minutes, or an hour and a half, following the one-page-per-minute rule.
Is my screenplay uploaded anywhere?
No. The calculator runs entirely in your browser. The text you paste stays on your device.
Why is my runtime different from the finished film?
Directors add or cut moments, action plays longer than it reads, and dialogue can be faster. The estimate tells you what your pages suggest, which is what readers and producers look at.
Kashna Script formats your screenplay while you write: scene headings, characters, dialogue, transitions, all in industry format. No menus. Every tool one key away.
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