Contact Us
Have a question, improvement suggestion, or idea for a new calculator? We'd love to hear from you!
What can you write to us about?
- Ideas for new calculators
- Bug reports or calculation errors
- UX improvement suggestions
- Partnership proposals
- General feedback about the site
We typically respond within 2 business days. All messages are read by the SmartMoney77 founder.
What can we help with?
- 🐛 Calculator bug or error
- 🤝 Partnership or collaboration
- 📰 Media or interview request
- 🧩 Embed or integration help
- 💬 General feedback or idea
Before You Contact Us
A calculator result seems wrong
Our calculators use standard financial formulas with data from Yahoo Finance, CoinGecko, and open exchange rate APIs. If a result looks off, please include the calculator name, your inputs, and the expected result so we can investigate.
Historical prices differ from what I see elsewhere
We use split-adjusted closing prices from Yahoo Finance. Other sources may show unadjusted prices, which can look very different for stocks that have split (like Tesla, Apple, or Nvidia). Both numbers are correct — they just measure different things.
My local currency isn't available
We currently support 22 currencies. If yours is missing, let us know — we prioritize additions based on user demand.
I need help embedding a calculator
Visit our Embed page for ready-to-use iframe code, supported calculators, and customization options. If you still need help, describe your setup and we'll assist.