Free calculators
Finance, math, statistics and planning calculators for class and homework. No account needed, and every result shows its inputs so they work on a projector.
Finance & accounting
Financial calculator (BA II Plus–style)
Keypad calculator with TVM keys, P/Y, BGN, cash flows and worked examples.
Open calculatorTVM solver: N, I/Y, PV, PMT, FV
Solve any of the five keys, with P/Y, C/Y, BGN/END and a period-by-period table.
Open calculatorBond calculator: price, yield & duration
Use actual settlement and maturity dates to solve price, yield, coupon, redemption or maturity date, with accrued interest, dirty price, duration and modified duration. Or work in years to maturity.
Open calculatorStock valuation: dividend discount and free cash flow models
Constant growth (solve P₀, D, rₛ or g from D₀ or D₁), non-constant growth with a terminal value, and the free cash flow model: value of operations to intrinsic value per share.
Open calculatorIntrinsic value: non-constant growth and FCF (Vop)
Enter a growth rate for each year; dividends or free cash flows, the terminal value and P₀ are calculated on a timeline, with every step shown.
Open calculatorLoan payment & amortization
Payment, total interest, extra payments and a downloadable schedule.
Open calculatorCapital budgeting: NPV, IRR, MIRR, PI, payback
Add as many years as you need. Also NFV, discounted payback and EAA.
Open calculatorDepreciation: MACRS, straight line, DDB, SYD
MACRS from the date placed in service (any tax-year start), with IRS half-year, mid-quarter and mid-month tables; plus book methods.
Open calculatorInterest rate converter
APR ↔ EAR for any compounding, including continuous.
Open calculatorMargin, markup & break-even
Gross margin, markup, break-even units and revenue.
Open calculator