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 Historical Inflation Calculator (US, UK, Euro, Canada) What is money from any past year worth today? Convert between any two years in US dollars, UK pounds, euros, or Canadian dollars using real official price-index data. 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. Savings & Investing Stock Profit Calculator Calculate profit or loss on a stock trade after fees — total return, annualized return, and the break-even sell price.