I built 20 free financial calculators. Here's what I learned.
I spent the last few months building MoneyDecoded Tools — 20 free financial calculators covering everything from mortgage payments to FIRE retirement planning to international money transfers.
No sign-up. No paywalls. Just tools that work.
Here's what I built and why:
The idea started simple: most people making big financial decisions — buying a house, paying off debt, figuring out retirement — never actually run the numbers. They guess. Or they hand it off to someone else. I wanted to change that.
So I built calculators for the decisions that actually matter:
Mortgage calculator with full amortization schedule
Debt payoff (avalanche vs snowball comparison)
FIRE calculator — find your financial independence number
401(k) projector with employer match
Rent vs buy comparison
Paycheck calculator with federal/state tax breakdown
And 14 more
Each tool includes a plain-English guide explaining the underlying concepts, not just the math.
Still early — working on getting organic traffic going and adding affiliate partnerships as the site grows. Happy to hear feedback from anyone who's built in the finance/tools space.
