Compound Interest Time Machine
See when you'll hit $100K, $500K, $1M — with growth chart, milestone timeline, cost-of-waiting analysis, and historical S&P 500 returns.
FIRE Calculator
Get your exact Freedom Day, FI number, and Monte Carlo survival rate. 4 FIRE types, 1,000 market simulations, Coast FI detector.
Debt Freedom Countdown
Your exact debt freedom date, snowball vs avalanche race, and live daily interest cost counter. 6-dimension debt health grade.
Net Worth Percentile Ranker
See exactly where your net worth ranks for your age using Federal Reserve SCF 2022 data. Wealth tier identity, 6-dimension Report Card, and 30-year growth projections.
Rent vs Buy Calculator
The honest mortgage vs rent showdown: full amortization, PMI auto-removal, opportunity cost engine, hidden costs reveal, 5×5 sensitivity heatmap, and break-even timeline.
Salary Lifetime Impact Calculator
See the compounding cost of every raise you didn't negotiate. Career fork visualization, negotiation ROI, job-hop calculator, 6-dimension career report card.
Investment Portfolio Grader
Grade your portfolio across 6 dimensions. 8-axis radar chart, fee drag devastation calculator, efficient frontier analysis, rebalancing action plan, and historical backtest.
Position Size Calculator
Calculate exact shares from risk %, entry, stop loss & take profit. 3 sizing methods, Kelly Criterion, Monte Carlo equity curve, losing streak stress test.
Options Profit Calculator
Interactive payoff diagrams, 16 pre-built strategies, live Greeks dashboard, P&L heatmap, probability of profit, and time decay timelapse animation.
DCA vs Lump Sum Simulator
Should you invest all at once or spread it out? 1,000 Monte Carlo simulations, S&P 500 backtesting from 1970, regret analysis, cash drag calculator, and 6-dimension strategy report card.
More finance tools coming
20 finance tools planned
FIRE calculator, debt freedom countdown, net worth ranker, and much more — all free.
Try Compound Interest Calculator →