Financial Calculator
Calculate compound interest, loans, investments, and other financial metrics
Compound Interest
A = P(1 + r/n)^(nt)
Where A = final amount, P = principal, r = annual rate, n = compound frequency, t = time
Loan Payment
M = P × [r(1 + r)^n] / [(1 + r)^n - 1]
Where M = monthly payment, P = principal, r = monthly rate, n = total payments
APY Conversion
APY = (1 + r/n)^n - 1
Where r = nominal rate, n = compounding periods per year
Investment Growth
FV = PV(1+r)^t + PMT×[((1+r)^t-1)/r]
Where FV = future value, PV = present value, PMT = payment, r = rate, t = time
Fixed Deposits
Same as compound interest but typically with fixed terms and rates.
Consider tax implications and early withdrawal penalties.
CD Laddering
Strategy to maximize returns while maintaining liquidity.
Divide investment across multiple CDs with staggered maturity dates.
💡 Financial Tips
Compare APY, not APR
APY shows the real return including compounding effects. Always compare APY when choosing savings accounts or CDs.
Emergency Fund First
Keep 3-6 months of expenses in a high-yield savings account before investing in longer-term products.
Ladder Strategy Benefits
CD laddering provides regular liquidity while potentially earning higher rates than short-term CDs.
Inflation Consideration
Ensure your returns exceed inflation rate to maintain purchasing power over time.
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MIT License
Free to use, modify, and distribute. Open source software for everyone.
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