Calculators
AI Cost Calculator
Estimate ChatGPT subscription costs and OpenAI API token costs with this free AI cost calculator.
AI Cost Tool
AI Cost Calculator
Compare ChatGPT subscription costs and estimate OpenAI API token costs from input tokens, cached input tokens, output tokens, request volume, and your selected local currency.
Subscription inputs
Select a ChatGPT plan and enter the number of users to estimate monthly, yearly, and custom-period costs.
Subscription results
Monthly cost
$20.00
1 user(s) × Plus
Monthly cost in USD
$20.00
Rate: 1 USD per $1
Yearly cost
$240
Monthly cost × 12
Yearly cost in USD
$240.00
Approximate local-currency estimate
12-month cost
$240
Custom period estimate
Custom period in USD
$240.00
Before taxes, app-store fees, or regional differences
Important note
ChatGPT subscriptions and OpenAI API billing are separate. A ChatGPT paid plan does not automatically include API usage for a separate website or app.
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Why use an AI cost calculator
AI costs can be confusing because ChatGPT subscriptions and OpenAI API billing are separate products.
A ChatGPT subscription is usually a fixed monthly plan for using ChatGPT directly, while API usage is usually billed by the amount of tokens processed by an app or website.
This calculator helps individuals, creators, and developers compare subscription costs with API usage costs before choosing how to build or use AI tools.
For API projects, the calculator can estimate cost per request, daily cost, monthly cost, yearly cost, and approximate local-currency cost.
The numbers are estimates only. Always check the latest official pricing before making billing or product decisions.
Common uses for an AI cost calculator
- Estimating ChatGPT monthly subscription costs
- Calculating team or multi-user ChatGPT plan costs
- Planning OpenAI API costs for a website or app
- Comparing different AI model prices
- Estimating monthly token volume and budget
Common AI cost examples
How this AI cost calculator works
Choose the ChatGPT subscription tab to estimate monthly, yearly, and team costs for common ChatGPT plans.
Choose the OpenAI API tab to estimate usage-based token costs from input tokens, cached input tokens, output tokens, and request volume.
Adjust the exchange rate to estimate the approximate cost in Korean won or your own local currency assumption.
Frequently Asked Questions
Are ChatGPT subscription costs and OpenAI API costs the same?
No. ChatGPT subscriptions are for using ChatGPT directly, while OpenAI API usage is billed separately for apps, websites, or developer projects.
How are OpenAI API costs calculated?
API costs are usually calculated from input tokens, cached input tokens, output tokens, and the selected model price per 1 million tokens.
Does ChatGPT Plus include OpenAI API usage?
No. A ChatGPT paid plan does not automatically include API usage for your own app or website.
Are the AI cost results exact?
No. This calculator provides estimates. Actual billing can vary based on pricing changes, taxes, exchange rates, caching, tools, and model usage.
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