Investing Calculators
Compounding is the quiet engine behind long-term wealth. These calculators show how a starting balance, regular contributions, and time work together, with every assumption on the table.
Compound Interest Calculator See how a starting balance plus regular contributions grows with compound interest over time. Investment Growth Calculator Project how an investment portfolio grows when you invest a fixed amount each month. Inflation Calculator See what a future amount of money is worth in today’s purchasing power after inflation. Rule of 72 Calculator The Rule of 72 estimates how many years it takes your money to double at a given annual return. Savings Goal Calculator Find the monthly amount you need to save to reach a target by a chosen date. Time to Reach a Savings Goal Find how long it takes to reach a target, like your first $1 million, at your current savings rate. Emergency Fund Calculator Set your emergency fund target from a few months of essential expenses, and see how long it takes to build at your current savings rate. APY Calculator Find the true annual percentage yield of a rate once compounding is counted, and project how a savings deposit grows. Net Worth Calculator Add up what you own and subtract what you owe to see your net worth, the clearest single number for your financial health. Dividend Reinvestment Calculator See how reinvesting dividends compounds into more shares over time, and how much more it builds than taking the dividends as cash. Dollar-Cost Averaging vs Lump Sum Calculator Compare investing a lump sum all at once against dollar-cost averaging it in over time, and see which comes out ahead. CD Calculator See what a certificate of deposit grows to at maturity, the interest it earns, and its true annual percentage yield. Millionaire Calculator Find how many years it takes to reach $1 million from your current savings, your monthly contribution, and your expected return. Investment Fee Calculator See what a fund expense ratio really costs over decades, by comparing the same portfolio gross and net of the fee. Total Stock Return Calculator See a stock true total return from price gains plus reinvested dividends, and how much of it came from dividends. CD Ladder Calculator Build a CD ladder and see each rung maturity value and the total interest, splitting a deposit across staggered terms. Asset Allocation by Age Calculator See a stocks-versus-bonds split for your age using the rule-of-thumb formula, with the dollar amount on each side. Cost Basis Calculator See the capital gain, the long-term tax, and the net cash from selling part of a position, plus the basis you still hold.