WEALTH DECISION LAB · SOUTH KOREA
Turn today's choice into its
long-term wealth impact.
Compare major decisions about housing, career, cars, debt, and investing with consistent formulas and assumptions you can inspect.
Returns are user assumptions, not promises or forecasts.
DECISION CALCULATORS
Spend less time assembling the calculation.
Open a calculator below, then use your browser's built-in “Translate to English” command if needed. Safari shows it in the address bar; Chrome and Edge show it in the page menu or right-click menu.
Target Wealth Planner
Estimate when your current investing pace may reach a target and how much you would need to invest each month to reach it within 15 years.
Rent Savings & Wealth
See how investing monthly rent savings could compound over 5, 10, and 15 years and change the date you reach your target.
Job Offer Comparison
Compare base pay, probability-weighted bonuses, and work-related costs to estimate the practical value of a new job offer.
Car Cost Calculator
Combine purchase price, financing, ownership costs, resale value, and the investment opportunity cost of buying a car.
Repay Debt or Invest?
After protecting an emergency fund, compare the guaranteed interest saved by repayment with several investment scenarios.
Home Purchase Cash Planner
Estimate the cash needed for a South Korean home purchase, including lending limits, taxes, and related transaction costs.
Lump Sum vs. DCA
Compare investing at once with spreading purchases over 3, 6, 12, or 24 months under three simple market paths.
Portfolio Rebalancing
Calculate new contributions or trades needed to move a portfolio back toward its target weights.
Investment Candidate Lab
Compare up to three candidates by expected return, downside, cash flow, liquidity, and execution difficulty.
Stock Decision Journal
Record valuation, three-year operating trends, cash flow, and financial safety, then compare the original thesis with the actual outcome.
Quant Backtest
Test transparent quantitative rules against historical data while separating publish dates from future information.
Wealth Action Board
Compare the estimated long-term effects of earning more, saving, investing, repaying debt, and building a side income.
ONE CONNECTED FLOW
Using the same timeline and return assumptions makes competing choices easier to compare.
We do not predict the future.
We make assumptions visible.
Same inputs, same result
Published formulas replace advice that changes from one situation to another.
Separate certainty from expectation
Guaranteed amounts and probability-weighted amounts are shown separately.
Show what is missing
Each result explains important taxes, inflation, fees, or market risks that the model does not capture.
IMPORTANT
Use the output as a scenario, not a recommendation.
These tools do not provide investment, tax, legal, lending, or employment advice. Verify current rules and personal eligibility with the relevant institution or a qualified professional before signing a contract or filing a return.