Codebase Token Calculator
Estimate tokens and cost to feed a whole codebase to an LLM.
Results update automatically as you type.
Result
~409,091 tokens
200 files · $0.8182 to send once to GPT-4.1
- Total characters
- 1,350,000
- Estimated tokens
- 409,091
- Input cost (once)
- $0.8182
Estimate how many tokens your codebase is and what it costs to send it to a model once. Set the number of files and their size to plan context for code assistants and review agents.
How this is calculated
This calculator uses the developer tools formulas described in our methodology. All figures are estimates for planning; verify current pricing with each provider before relying on them.
Worked example (defaults)
With the default inputs above, here is the result:
Result
~409,091 tokens
200 files · $0.8182 to send once to GPT-4.1
- Total characters
- 1,350,000
- Estimated tokens
- 409,091
- Input cost (once)
- $0.8182
Frequently asked questions
Can I fit a codebase in one prompt?+
Only small ones. Large repos exceed even 1M-token windows, so most tools index and retrieve relevant files instead of sending everything.