Savings & Investing

Watch compound growth and plan your goals.

Savings & Investing 401(k) Match Calculator See how much free money your employer 401(k) match is worth per year — and what it compounds to by retirement. Savings & Investing APY vs APR Calculator (Converter) Convert APR to APY (and back) for any compounding frequency — see what a quoted rate actually pays or costs per year. Savings & Investing Break-Even Point Calculator Calculate how many units or how much revenue a business needs to cover its costs — with margin of safety. Savings & Investing CD Ladder Calculator Build a CD ladder: split savings across staggered maturities, see the blended rate, total interest, and when each rung matures. Savings & Investing Coast FIRE Calculator Find your Coast FIRE number — the savings level where compounding alone funds retirement, and you only need to cover current bills. Savings & Investing College Savings Calculator How much to save monthly for a child’s college — with education inflation and investment growth both included. Savings & Investing Compound Interest Calculator Calculate how your savings grow with compound interest and monthly contributions — future value, total deposits, and interest earned. Savings & Investing Daily Interest Calculator Calculate interest per day on any balance — for savings, loans, payoff quotes, and late payments. Savings & Investing Dividend Income Calculator Calculate the dividend income a portfolio pays per year and month from its yield — and the portfolio needed for a target income. Savings & Investing DRIP Calculator (Dividend Reinvestment) See what reinvesting dividends does over decades: DRIP vs taking the cash, with dividend growth included. Savings & Investing Emergency Fund Calculator Calculate how big your emergency fund should be based on your real monthly expenses and job stability — and how long it will take to build. Savings & Investing FIRE Number Calculator Calculate your FIRE number — the savings that makes work optional — and the year you reach financial independence at your savings rate. Savings & Investing How Long Will My Money Last Calculator See how many years savings last at a given monthly withdrawal — with growth and inflation both included. Savings & Investing Inflation Calculator (Custom Rate) See what inflation does to your money: future buying power of today's dollars, or what a future amount is worth today, at any rate you choose. Savings & Investing Investment Fee Calculator (Expense Ratio Drag) See how much a fund expense ratio or advisor fee really costs over decades — the six-figure difference between 0.05% and 1%. Savings & Investing Lump Sum vs Dollar-Cost Averaging Calculator Have a windfall to invest? Compare investing it all now vs spreading it over months — expected outcomes and the honest trade-off. Savings & Investing Margin & Markup Calculator Convert between cost, price, margin, and markup — and stop confusing the two numbers that sink small-business pricing. Savings & Investing Millionaire Calculator (Time to $1 Million) Find out exactly when your savings reach $1 million at your current pace — and what change would get you there faster. Savings & Investing Net Worth Calculator Calculate your net worth from assets and debts, and see how you compare to median benchmarks by age. Savings & Investing NPV & IRR Calculator Net present value and internal rate of return for a project: upfront cost plus up to 6 years of cash flows. Savings & Investing Payback Period Calculator How long until an investment pays for itself — simple payback for any upfront cost with monthly or yearly savings. Savings & Investing Position Size Calculator (Risk %) Calculate how many shares to buy so a stop-loss hit costs only your chosen risk percentage — the 1–2% rule, computed. Savings & Investing Present Value Calculator Calculate what a future amount of money is worth today at a given discount rate — the core formula of all finance. Savings & Investing Retirement Savings Calculator Project your retirement balance from current savings and monthly contributions — and see if it supports the income you want. Savings & Investing Retirement Withdrawal Calculator (Safe Withdrawal Rate) How much can you withdraw from savings each year in retirement — sustainable income at 3–5% withdrawal rates. Savings & Investing ROI Calculator (Return on Investment) Calculate return on investment as a percentage and annualized rate — for any investment, project, or purchase. Savings & Investing Roth vs Traditional Calculator (Simplified) Compare Roth (pay tax now) vs Traditional (pay tax later) retirement contributions based on your tax rates today and in retirement. Savings & Investing Rule of 72 Calculator How long does money take to double? The rule of 72 gives an instant answer from any interest rate — compared with the exact math. Savings & Investing Savings Goal Calculator Find out how much to save per month to reach any savings goal by your deadline — or how long your current saving rate will take. Savings & Investing Savings Rate Calculator Calculate your true savings rate from income and savings — and see the years to financial independence it implies. Savings & Investing Simple Interest Calculator Calculate simple interest on any principal, rate, and time — and see how it compares to compound interest side by side. Savings & Investing Social Security Break-Even Calculator (Claim at 62 vs 67 vs 70) Compare claiming Social Security early, at full retirement age, or at 70 — break-even ages and lifetime totals for your benefit.