Calculadora de Tempo de Leitura
Estimate reading time and detailed text statistics
100% gratuito. Funciona totalmente no seu navegador: seus arquivos e dados nunca saem do seu dispositivo e nada é enviado para nenhum servidor.
Sobre esta ferramenta
The "5 min read" label on articles exists because it measurably affects behaviour - readers commit to something with a stated, manageable length far more readily than to an unmarked wall of text. The estimate behind it is simple arithmetic: word count divided by reading speed. The speed is the interesting part. Adult silent reading of general prose averages roughly 200-250 words per minute, and that figure is remarkably consistent across studies. But it moves with the material. Dense technical documentation slows to 100-150 wpm because readers stop to think. Fiction runs faster. Code samples are not read linearly at all, so they inflate word counts while consuming a different kind of attention. This is why an estimate is a guide rather than a promise - it is right for typical prose and typical readers, and wrong for a specification or a tutorial full of examples. Everything is calculated in your browser.
Como usar esta ferramenta
- Paste your textThe full article or post. Statistics and the reading time appear immediately.
- Read the estimateBased on average adult reading speed for general prose.
- Adjust for your contentTechnical material reads slower - add roughly half again for documentation or anything with code.
- Use it in your articleDisplaying an honest estimate near the title measurably improves the chance someone starts reading.
Por que usar
- Turns a word count into the number readers actually care about.
- Additional text statistics alongside, so you can see structure as well as length.
- Runs in your browser - unpublished drafts are never uploaded.
- Instant, with no length limit.
- No account required.
Usos comuns
- Adding a "X min read" label to a blog post or article.
- Checking whether a newsletter is a reasonable length before sending.
- Estimating how long a presentation script will take to deliver.
- Deciding whether a long piece should be split into a series.
- Setting expectations on internal documentation.
Dicas para melhores resultados
- Round to whole minutes and be slightly generous. Understating the length is the one thing that annoys readers.
- Add 50% for technical content. Documentation and tutorials genuinely read slower than prose.
- Reading aloud is much slower - roughly 130-150 words per minute - so use that figure for scripts and presentations.
- If the estimate is over about 12 minutes, consider whether the piece should be split. Long reads see much sharper drop-off.
- Show the estimate near the title, not at the end, where it can no longer influence the decision to read.
Erros a evitar
- Applying a prose reading speed to technical documentation, which understates the real time considerably.
- Counting code blocks as prose words - they are skimmed or studied, never read at speaking pace.
- Understating the time to make an article look approachable, which readers notice and resent.
- Using silent reading speed for a script that will be spoken aloud.
- Treating the estimate as precise. It is an average across readers who vary enormously.
Perguntas frequentes
Typically an average adult reading speed (often around 200-250 words per minute is used as a baseline), though actual reading speed varies significantly by individual and content complexity.
Often word count, character count, sentence count, and sometimes paragraph count or average sentence length - giving a fuller picture of the text beyond just estimated reading time.
Because readers decide whether to start based on perceived commitment. A stated, manageable length measurably increases the chance someone begins reading rather than closing the tab - which is why the label became standard on blogs and publications.
Roughly 4-5 minutes for general prose at average adult reading speed. Technical material with code or dense detail takes closer to 7-10 minutes for the same word count.
Yes. Documentation and tutorials read at roughly 100-150 words per minute rather than 200-250, because readers stop to think and re-read. Adding about half again to the estimate is a reasonable adjustment.
No. Everything is calculated in your browser, which matters when the text is an unpublished draft or work under NDA.
Yes. Reading Time is free for normal use with no account required, and ToolBox does not add a watermark to your result.
Most tools in this category run in your browser so the file stays on your device. If a tool needs a temporary server job, files are handled for that job only and are not kept as a lasting archive.
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