124 characters at about 4 chars/token
- Low estimate
- 25
- High estimate
- 42
- Words
- 19
Use your provider tokenizer for exact billing, especially with code, symbols, non-English text, or long prompts.
Prompt Token Estimator
Use this free prompt token estimator to turn pasted prompt text into a rough token estimate, low-high range, character count, and word count.
Research-backed assumptions Formula steps Examples included Private in-browser use
Formula steps
- Count characters in the pasted prompt.
- Divide by the chosen average characters per token.
- Show a rough low/high range because real model tokenizers split text differently.
How to use the prompt token estimator
- Enter the requested dates, times, grades, dimensions, network values, password options, or units.
- Check the assumptions shown on the page, especially school scales, payroll rules, concrete waste, subnet type, or security handling.
- Press the calculate button to see the answer, supporting metrics, and formula steps.
- Use examples, recent answers, or copy the result while keeping the estimate limits in mind.
Common uses
Quickly estimate whether a prompt is short, medium, or long before using a model.
Plan token cost by pairing this tool with the AI Token Cost Calculator.
Compare prompt drafts before choosing the shorter one.
Explain why exact token counts need a provider tokenizer.
Examples
Rough token count
Character-based estimate
Low-high estimate range
Frequently asked questions
Plain-language answers about when to use the tool, what it does with your inputs, what to double-check, and how privacy works.
When should I use the Prompt Token Estimator?
Use it when your task matches one of these common needs: Quickly estimate whether a prompt is short, medium, or long before using a model. Plan token cost by pairing this tool with the AI Token Cost Calculator. It works best when you already know the values, dates, units, or settings the page asks for.
What is the Prompt Token Estimator doing with my inputs?
In plain language: The estimator counts characters and divides by the average characters-per-token value you choose, then shows a rough low-high range. The examples on the page are there so you can compare your inputs with a filled-out calculation before copying the answer.
What do the main Prompt Token Estimator inputs mean?
Prompt text: The text you plan to send to an AI model. Average characters per token: A rough planning assumption; 4 is common, but exact tokenizers vary.
How should I read the Prompt Token Estimator answer?
Read the AI result as a best-effort clue or draft. Look at labels, scores, notes, and warnings together, then compare the result with the original text or image before using it anywhere important.
What should I double-check before trusting the answer?
Real tokenizers split text by model vocabulary. Code, symbols, non-English text, emojis, and whitespace can change the true token count. Also check that you used the right unit, date, scale, or mode because small input changes can change the result.
Is this an exact tokenizer?
No. It is a quick planning estimate. For exact billing or context-window checks, use the tokenizer from the model provider you plan to use.
Why is there a low and high estimate?
Different text splits differently. A paragraph of normal English often behaves differently from code, lists, URLs, punctuation-heavy text, or another language, so the range helps you avoid treating the estimate as exact.
Does the site save what I enter?
No. The calculator runs in your browser tab. Your recent answers stay only on the page while you use it, and they are not sent to a server.