Financial calculators for smart investors

Compound Interest Calculator Popular

Calculate the power of compound interest and see how your wealth grows exponentially over the years.

Return Calculator

Calculate your return (IRR) from starting capital, savings rate, duration, and final value – optionally with costs/taxes.

Dividend Calculator

Plan your dividend income: portfolio value, growth, reinvestment, and taxes (simplified).

Withdrawal Plan / FIRE Calculator

Simulate withdrawals (4% rule), inflation, and returns – including simple Monte Carlo scenarios.

Savings Goal Calculator

How much do you need to save to reach target amount X? Solve for savings rate or duration.

Cost Average Calculator

Compare lump sum vs. regular investment over simulated price paths (return/volatility).

Portfolio Rebalancing Calculator

Calculate buy/sell recommendations to bring your portfolio back to target allocation.

Risk Profile / Asset Allocation

Questions → risk score → allocation recommendation (stocks/bonds/cash) with ranges.

Gross-Net Calculator

Estimate your net from gross: tax class, social contributions, childless surcharge (simplified model).

Capital Gains Tax Calculator

Capital gains tax + solidarity surcharge + church tax, incl. savings allowance.

ETF Tax Calculator

Partial exemption + sale/withdrawal + simplified advance lump sum (adjustable parameters).

Savings Allowance Calculator

Optimize exemption orders across multiple banks based on expected earnings.

Inflation Calculator

Purchasing power loss, value in X years, and real return – quickly calculated.

Real Estate Calculator

Financing + rough buy-vs-rent comparison.

Amortization Schedule Calculator

Monthly plan, remaining debt, interest costs – incl. annual special repayment.

Annuity Calculator

Rate ↔ loan amount ↔ duration – choose mode and calculate quickly.

Purchase Costs Calculator

Transfer tax by state + notary/land registry + broker (customizable).

Rental Yield / Cash Flow Calculator

Gross/net rental yield, financing, operating costs, cash flow.

Purchase Price Factor Calculator

Purchase price factor = purchase price / annual cold rent – including interpretation.

Loan Calculator

Rate, duration, total interest, and amortization schedule for installment loans.

Overdraft Calculator

Interest costs on overdraft and comparison to installment loan (simple).

Leasing vs. Purchase Calculator (Car)

Compare total costs over the holding period: leasing vs. financing/purchase.

Energy Cost Comparison

Annual costs old vs. new based on base price + unit price + consumption.