After 20 years as a controller and CFO, I kept seeing the same problem: companies hemorrhaging money in tail spend, overpaying for cloud, and guessing at AI costs. Consultants charge $50k+ to analyze this, but the math isn't that complex - it just needs the right framework. So I built CFO Charm - four calculators that do the expensive analyses for free: 💰 **Tail Spend Navigator** - Shows which of your vendors to renegotiate first (typically 10-20% savings hiding here) 🤖 **AI Token Calculator** - Real cost comparison between GPT, Claude, and Gemini ☁️ **Infrastructure Calculator** - True costs across AWS, Azure, Google Cloud ⚡ **Energy Calculator** - What your AI workloads actually cost in power These aren't generic estimators. They use the same frameworks I used at Fortune 500 companies, just automated and free. For Product Hunt users: If the calculators find savings opportunities, I'll personally do a free 30-minute implementation call to help you capture them. No obligation - just want to help more companies stop leaving money on the table. What hidden costs are killing your margins? Try the calculators and let me know what you find!

CFO Charm

Professional financial calculators for modern cfos

Professional financial calculators for modern cfos