Investment

About Investment Calculators

Investment calculators on CDCalculator help you project how savings, CDs, bonds, and portfolios grow over time. With 16 free tools in this category, you can compare compound interest, IRR, ROI, present value, and average returns using the same math banks and advisors rely on in spreadsheets.

Popular tools include Average Return Calculator, IRR Calculator, Bond Calculator, Mutual Fund Calculator, Present Value Calculator, Future Value Calculator and more. Every calculator runs instantly in your browser with charts and schedules on supported tools.

What you can model

• Compound growth: See how deposits and APY interact over months or decades.
• Fixed income: Estimate bond yields and CD maturity values before you lock in a rate.
• Project returns: Use IRR and ROI calculators to evaluate business or investment opportunities.

How to Choose the Right Tool

Start with the CD Calculator or Compound Interest Calculator for savings goals. For stocks or funds, try the Investment Calculator or Mutual Fund Calculator. Match the calculator to the product you are actually comparing.

CDs, Bonds, and Cash

Certificates of deposit trade liquidity for a fixed APY. Bonds pay periodic coupons and return principal at maturity unless the issuer defaults. Use the CD Calculator and Bond Calculator before committing cash you cannot afford to lock up. Read what is a CD and FDIC insurance explained.

Time Value of Money

Present value, future value, and the general Finance Calculator form the core of corporate and personal finance. Discount rates reflect opportunity cost - the return you could earn elsewhere at similar risk.

How to pick an investment calculator

Start from the product on the quote, not from a generic growth goal. A CD disclosure belongs in the CD Calculator. A coupon and face value belong in the Bond Calculator. A contribution plan with an assumed return belongs in the Investment Calculator or Compound Interest Calculator. If you are comparing two completed projects, use IRR or ROI rather than forcing both into a CD form.

Each of the 16 investment pages states its formula, a worked example, and what it leaves out (fees, taxes, or early-withdrawal penalties). Math runs in the browser. For narrative on ladders, APY shopping, and FDIC coverage, use the blog or the homepage CD tool.

Investment calculator directory

Links below are the canonical URLs. The sentence after each name is the job that page is built to do, taken from that tool's own introduction.

• Average Return Calculator — This Average Return Calculator helps measure how an account actually performed when you added or withdrew money during the period. It reports money-weighted return (similar in spirit to IRR for personal accounts) and geometric average return where applicable, so a mid-year deposit does not get mistaken for investment skill.
• IRR Calculator — This IRR Calculator finds the internal rate of return: the discount rate that sets net present value of all cash flows to zero. Enter initial outlay, periodic inflows, and optional terminal value to see annualized IRR. It suits capital projects, rental properties, and private deals with uneven cash timing.
• Bond Calculator — This Bond Calculator prices fixed-rate bonds from coupon rate, face value, years to maturity, and yield to maturity (YTM), or solves YTM from market price. It shows clean price, approximate annual income, and total cash flows if held to maturity assuming no default. Use it to compare a bond quote with textbook bond valuation.
• Mutual Fund Calculator — This Mutual Fund Calculator projects how a mutual fund or index fund balance may grow from a lump sum plus monthly contributions at a gross return, net of expense ratio. Enter starting amount, monthly investment, expected return, expense ratio, and years to see ending balance and fee drag. It educates on compounding and costs; it does not predict fund performance or guarantee any return.
• Present Value Calculator — This Present Value Calculator converts future dollars into today's value using a discount rate you choose. Enter a future lump sum or payment stream, rate, and time to see present value (PV). It answers what $50,000 received in eight years is worth today at a 5% discount rate, or what a series of future payments is worth in one number.
• Future Value Calculator — This Future Value Calculator projects what today's savings and scheduled deposits will grow to at a fixed interest rate over a chosen term. Enter starting balance, periodic contribution, rate, compounding, and time to get FV and a growth schedule. It uses standard compound interest and annuity formulas used in finance textbooks and corporate planning models.
• ROI Calculator — This ROI Calculator measures return on investment as net gain divided by initial cost, expressed as a percentage. Enter purchase cost, current or sale value, and optional holding period to see total ROI and sometimes annualized ROI. It fits single round-trip investments without complex interim cash flows.
• Payback Period Calculator — This Payback Period Calculator shows how many periods until cumulative cash inflows equal the initial investment. Enter upfront cost and expected periodic benefits to see simple payback time, and discounted payback if the tool supports a discount rate. It highlights liquidity and capital recovery speed, not full profitability, and works best as a first screen before IRR or NPV analysis.
• Finance Calculator — This Finance Calculator solves standard time-value-of-money problems: given four of five variables (present value, future value, payment, rate, periods), it finds the fifth. Use it for loan payments, required savings to reach a target, or implied rate on an annuity. It follows ordinary annuity conventions unless the tool notes otherwise.
• Compound Interest Calculator — This Compound Interest Calculator shows how a starting balance and regular deposits grow when interest earns interest over time. Enter principal, annual rate, compounding frequency, term, and optional monthly contributions to see ending value and total interest. It is a planning tool for savings and conservative growth scenarios, not a forecast of stock market returns.
• Interest Calculator — This Interest Calculator lets you project earnings on a single lump sum, on a stream of periodic deposits, or on both together. Enter amount, rate, term, and contribution schedule to compare how timing affects total interest. It assumes a fixed rate and regular compounding, suitable for planning rather than trading forecasts.
• Investment Calculator — This Investment Calculator models portfolio growth from an initial balance plus regular contributions at an assumed annual return, with optional inflation to show real purchasing power. Enter deposit, monthly add, rate, term, and inflation to compare nominal ending wealth with inflation-adjusted value. It is an educational planner, not a prediction of market performance.
• Simple Interest Calculator — This Simple Interest Calculator computes interest that applies only to the original principal, not to prior interest earned. Enter principal, annual rate, and time in years or months to get total interest and final amount. Use it for short-term loans, basic bond accruals, and teaching the contrast with compounding.
• CD Calculator — This CD Calculator projects what a certificate of deposit is worth at maturity from the deposit, APY, term, and compounding frequency on your quote. Optional tax rate shows how much interest you keep in a taxable account. Use it to compare two bank offers before you sign, not as a substitute for the account disclosure.
• Interest Rate Calculator — This Interest Rate Calculator backs out the compound annual growth rate implied by a starting amount, ending amount, and time period. It answers what rate would turn $8,000 into $9,100 in 30 months if interest compounded on schedule. Use it to audit savings statements, compare investments with different horizons, or check whether a quoted yield is plausible.
• Savings Calculator — This Savings Calculator solves how much you need to save each period to reach a goal balance by a target date, or shows how close you get with a fixed contribution you already plan. Enter starting balance, goal, rate, and timeline to see required monthly savings and total interest earned along the way. It assumes steady contributions and a fixed rate, ideal for emergency funds and short-to-medium goals.