ChatGpt Token Calculator

Calculate your ChatGPT token usage fast—see costs, optimize prompts, save time.

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Tool Icon ChatGpt Token Calculator

ChatGPT Token Calculator

Estimate the number of tokens and cost for GPT language models

Enter Your Text or Prompt

Paste the content you want to analyze below

Supports plain text, code snippets, and markdown
Calculation History:
No calculation history yet
Understanding Tokenization:
Language Rules

English usually averages 4 characters per token.

Code Snippets

Code uses more tokens due to indentation and symbols.

Cost Efficiency

Estimating tokens helps stay within API budgets.

Context Limits

Keep prompts within model-specific context windows.

BPE Encoding

Models use Byte Pair Encoding for tokenization.

Safety Margin

Always allow for 10-20% margin in output tokens.

How to Use:
  1. Paste your text or prompt into the input area.
  2. Optionally open "Model Settings" to select a specific GPT model.
  3. Click "Calculate Tokens" to see the estimated count and cost.
  4. Save frequently used prompts to your calculation history.

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About This Tool

So, you’ve been using ChatGPT and suddenly noticed your usage spiking—or maybe you're just curious how much that long prompt of yours actually costs. That’s where a ChatGPT token calculator comes in. It’s not flashy. It’s not trying to sell you anything. It’s just a simple tool that counts tokens in your text so you can estimate how much your input or output will cost with OpenAI’s API. Tokens are the chunks of text—words, parts of words, even punctuation—that the model processes. A single token can be as short as one character or as long as one word. For example, “hello” is one token, but “ChatGPT” might be split into two. The calculator breaks your text down the same way the model does, giving you a realistic count. I built this because I kept guessing wrong. One day I thought I was being efficient, only to see my API bill jump. Now I check before I send. It’s saved me time and a few bucks.

Key Features

  • Counts tokens for both input prompts and generated responses
  • Supports multiple languages—yes, even that mix of English and Spanish you keep typing
  • Shows cost estimates based on current OpenAI pricing (gpt-3.5-turbo, gpt-4, etc.)
  • Works offline once loaded—no data sent anywhere
  • Copy-paste friendly with a clean, no-nonsense interface
  • Breaks down tokenization so you can see exactly how your text was split

FAQ

Why do I need to know my token count?
Because OpenAI charges per token. If you’re building an app or running experiments, even small inefficiencies add up. Knowing your token usage helps you optimize prompts, reduce costs, and avoid surprises on your bill.

Does this tool store my text?
Nope. Everything happens in your browser. Nothing gets sent to a server. Your prompts stay yours.