Free Financial Calculators
20 free, browser-based financial calculators to support self-directed financial education. Each tool is designed to help you understand concepts — not to generate personalized guidance or predict future outcomes.
All calculators use educational assumptions and publicly available tax bracket data. Results are illustrative only. Please consult a qualified financial professional for decisions specific to your situation.
Compound Interest Calculator
LiveVisualize how money grows over time with compounding at different rates, frequencies (daily, monthly, annually), and time horizons.
Capital Gains Tax Calculator
LiveEstimate federal and state capital gains tax — short-term vs long-term rates, NIIT surtax, all 50 US states plus DC.
401(k) Calculator
LiveProject 401(k) growth based on contribution rate, employer match, salary increases, and expected returns with year-by-year breakdown.
Roth IRA Growth Calculator
LiveProject tax-free Roth IRA growth with catch-up contributions, and compare to a taxable account to see the tax savings estimate.
Options Profit & Loss Calculator
LiveCalculate theoretical profit and loss for calls and puts — long or short — with a P&L table across a range of stock prices at expiration.
Mortgage Calculator
LiveCalculate monthly payments with principal & interest, property tax, insurance, PMI, and HOA. Full amortization schedule included.
DRIP Calculator (Dividend Reinvestment)
LiveModel how reinvesting dividends affects total return over time, accounting for dividend growth rates and share price appreciation.
Dollar Cost Averaging Calculator
LiveCompare DCA vs lump sum investing with annual contribution escalation. Year-by-year breakdown of contributions and growth.
HSA Growth Calculator
LiveProject HSA growth with the triple tax advantage — tax deduction, tax-free growth, and tax-free medical withdrawals.
Social Security Estimator
LiveEstimate monthly benefits at age 62, 67, and 70 using a simplified PIA calculation. Compare lifetime benefits and break-even ages.
Stock Split Calculator
LiveCalculate post-split shares, price, and adjusted cost basis for forward and reverse stock splits.
Dividend Yield Calculator
LiveCalculate dividend yield, income per share, income on $10,000 invested, and payout ratio sustainability analysis.
CAGR Calculator
LiveCalculate Compound Annual Growth Rate from beginning and ending values. Includes reverse CAGR projection and Rule of 72 doubling time.
Inflation Calculator
LiveSee how inflation erodes purchasing power over time. Forward and reverse calculations with year-by-year breakdown.
Net Worth Calculator
LiveAdd assets and liabilities to calculate net worth, with visual breakdown and debt-to-asset ratio.
Debt Payoff Calculator
LiveCompare snowball vs avalanche debt payoff strategies side by side. See total interest saved and payoff timeline for each method.
Emergency Fund Calculator
LiveDetermine your emergency fund size based on monthly expenses, income stability, and household profile. Auto-suggests coverage months.
Brokerage Fee Comparison
LiveCompare annual trading costs across 6 major US brokers — Fidelity, Schwab, IBKR, Robinhood, E*TRADE, and Webull.
Portfolio Rebalancing Tool
LiveEnter current values and allocation percentages to see drift and the exact dollar amounts needed to rebalance.
Retirement Withdrawal Calculator
LiveEstimate how long your retirement portfolio will last under different withdrawal rates, returns, and income sources.