投资工具 计算器

Dollar-cost averaging, compound interest, and investment return simulators. Enter your investment plan — see projected returns with monthly breakdown. Free.

Yield to maturity and current yield of a bond. Instant result with amortization table, formula and chart. Free financial calculator.

Calculate investment return adjusted for inflation. Enter nominal return and inflation rate — see real return and purchasing power preserved. Free.

Project future wealth from your savings rate and investment returns. Enter income, savings rate, and expected return — see wealth at any age. Free.

Calculate trades needed to rebalance your investment portfolio. Enter holdings and target allocations — see exact buy/sell amounts. Free.

Calculate a sustainable withdrawal rate from your retirement portfolio. Enter balance and withdrawal — see portfolio survival probability. Free.

Project Stocks and Shares ISA growth for UK investors. Enter annual contribution and return — see ISA balance at target date. Free.

Profit and loss from cryptocurrency trades. Instant result with amortization table, formula and chart. Free financial calculator.

UK workplace pension growth projector. Instant result with amortization table, formula and chart. Free financial calculator.

Pay off debts smallest balance first. Instant result with amortization table, formula and chart. Free financial calculator.

Pay off debts highest interest rate first. Instant result with amortization table, formula and chart. Free financial calculator.

Calculate PayPal transaction fees for any payment. Enter the amount and transaction type — see the fee and net payout. Free.

Calculate Stripe transaction fees for any payment amount. Enter the amount — see Stripe's fee deducted and the net amount you receive. Free.

Calculate EBITDA from your income statement. Enter revenue, COGS, operating expenses, and D&A — see EBITDA and EBITDA margin. Free.

Calculate time to recover your initial investment from cash flows. Enter investment and cash flows — see payback period with cumulative chart. Free.

Calculate LTV:CAC ratio for subscription and SaaS businesses. Enter LTV and CAC — see ratio with payback period and health benchmark. Free.

Model revenue impact from customer churn rates. Enter MRR and churn — see monthly revenue loss and annual impact. Free.

Calculate average revenue per user in subscription businesses. Enter total MRR and subscriber count — see ARPU trend and revenue impact. Free.