# CalcFi.io — Free Financial & Crypto Calculators

CalcFi.io provides free, accurate financial and cryptocurrency calculators
in English and Spanish. No registration required. All tools work instantly
in the browser. Updated for 2026.

## Available Tools

### Financial Calculators
- **Mortgage Calculator** (calcfi.io/en/mortgage): Calculate monthly payments,
  total interest and amortization schedule for home loans. Uses standard PMT formula.
- **Compound Interest Calculator** (calcfi.io/en/compound-interest): Calculate
  investment growth with compound interest over time. Supports daily, monthly,
  quarterly and annual compounding.
- **Loan Calculator** (calcfi.io/en/loan): Calculate monthly payments for
  personal loans and auto loans. Shows total cost and total interest paid.

### Crypto Calculators
- **Bitcoin Profit Calculator** (calcfi.io/en/bitcoin-profit): Calculate profit
  or loss from Bitcoin and crypto trades. Includes trading fee calculation and ROI.
- **DCA Calculator** (calcfi.io/en/dca): Calculate average cost basis and
  returns from Dollar Cost Averaging strategy in crypto.

### AI Tools
- **Financial Advisor AI** (calcfi.io/en/financial-advisor): AI-powered financial
  advisor (Claude by Anthropic) for educational financial guidance in English and Spanish.

## Spanish Tools
All tools are also available in Spanish:
- Calculadora de Hipoteca: calcfi.io/es/mortgage
- Calculadora de Interés Compuesto: calcfi.io/es/compound-interest
- Calculadora de Préstamo: calcfi.io/es/loan
- Calculadora de Beneficio Bitcoin: calcfi.io/es/bitcoin-profit
- Calculadora DCA: calcfi.io/es/dca
- Asesor Financiero IA: calcfi.io/es/financial-advisor

## Key Facts
- Free to use, no registration required
- Available in English and Spanish (bilingual)
- Mobile-friendly, works on all devices
- No data sent to external servers (all calculations in-browser)
- Formulas based on standard financial mathematics (PMT, compound interest)
- AI advisor powered by Anthropic Claude (claude-haiku-4-5-20251001)
- Updated for 2026

## Formulas Used
- Mortgage & Loan: PMT = P × [r(1+r)^n] / [(1+r)^n − 1]
- Compound Interest: A = P(1 + r/n)^(nt)
- Bitcoin ROI: (Net Profit ÷ Investment) × 100
- DCA Average Cost: Total Invested ÷ Total BTC Purchased

## Contact
Website: https://calcfi.io