About These Calculators
Essential calculators for AI developers and teams. Estimate Claude API costs, compare LLM pricing, calculate token usage, and plan AI infrastructure budgets.
AI & Developer Cost Calculators
16 toolsClaude API Cost Calculator
Calculate Claude API costs by model, tokens, and usage
OpenAI API Cost Calculator
Calculate GPT-4o and OpenAI API costs
LLM Token Counter
Estimate token count from text length
Claude Code Cost Estimator
Estimate monthly Claude Code usage costs for development
LLM Cost Comparison Calculator
Compare costs across Claude, GPT-4, Gemini, and other LLMs
AI Image Generation Cost Calculator
Calculate costs for DALL-E, Midjourney, and Stable Diffusion
Token to Word Converter
Convert between LLM tokens and word counts
GPU Rental Cost Calculator
Compare GPU cloud rental costs for AI training and inference
AI Agent Cost Calculator
Estimate costs for running autonomous AI agents
API Rate Limit Calculator
Calculate API throughput and rate limit requirements
Vector Database Cost Calculator
Estimate vector database storage and query costs for RAG
Prompt Engineering ROI Calculator
Calculate the return on investment from optimizing AI prompts
Hex to RGB Color Converter
Convert between hex color codes and RGB values
JSON Payload Size Calculator
Estimate JSON payload size for API requests
Download Time Calculator
Calculate file download time based on internet speed
Password Strength Calculator
Calculate how strong your password is and how long to crack it
Frequently Asked Questions
Are these ai & developer cost calculators free?
Yes, all 16 calculators are completely free with no signup required. They run entirely in your browser — no data is sent to any server.
How accurate are these calculators?
Our calculators use industry-standard formulas and are regularly updated. However, they provide estimates — always verify critical calculations with a professional in the relevant field.
Can I use these calculators on my phone?
Yes, all calculators are mobile-responsive and work on any device with a web browser. No app download needed.
Do you save my calculations?
No. All calculations happen in your browser. We don't store any of your inputs or results. Your data stays on your device.
Can I embed these calculators on my website?
Select calculators offer embed codes that you can copy and paste into your website or blog. Look for the "Embed This Calculator" section on individual tool pages.