Finance Calculators
Financial decisions have long-term consequences. A half-percent difference in mortgage rate can cost tens of thousands over the life of a loan. Not understanding compound interest means underestimating how much your savings can grow — or how fast debt accumulates. Our finance calculators cover the numbers that matter most: mortgage payments, compound growth, investment returns, loan payoffs, and retirement planning. Whether you are buying your first home, comparing loan offers, or building an emergency fund, these tools help you run the numbers before you commit your money.
254 calculators available
Deferred Annuity Calculator — Project Future Income
Grow premiums during the deferral years, then convert the balance into monthly income. See both phases of a deferred annuity in one run.
Deferred Payment Loan Calculator — Payment After Deferment
Estimate the monthly payment on a deferred payment loan after interest capitalizes during the deferment period.
Operating Leverage Calculator — DOL & EBIT Sensitivity
Calculate degree of operating leverage from sales, variable costs, and fixed costs, then project how far EBIT swings for every 1% change in revenue.
MACRS Depreciation Calculator — First-Year Tax Write-Off
Estimate your first-year MACRS deduction with Section 179, bonus depreciation, and recovery-period conventions stacked in one answer.
Diaper Cost Calculator — Estimate Monthly Baby Expenses
Calculate the monthly cost of diapers for your baby with our easy-to-use calculator.
Direct Material Price Variance Calculator — $ Impact
Enter actual and standard prices to get your direct material price variance in dollars with an instant favorable or unfavorable verdict.
Discount Calculator — Sale Price, Savings & % Off
Find the real sale price after a percent-off discount and coupons, see your total with sales tax, and check which deal wins: percent or dollar off.
Bank Discount Rate Calculator — T-Bill Discount Yield
Calculate the bank discount rate on T-bills and commercial paper from face value, price, and days to maturity, with money market yield and BEY.
Discretionary Income Calculator — Budget & IDR Method
Calculate discretionary income two ways: income minus taxes and necessities, or the AGI minus 150% poverty line formula used for student loan IDR payments.
Disposable Income Calculator — Money After Taxes
Calculate monthly disposable income from gross pay after taxes, FICA, and paycheck deductions, with the after-tax share you keep.
Dividend Calculator — Yield & Income
Calculate dividend yield, annual income, and total returns from dividend-paying stocks. See how reinvesting dividends accelerates portfolio growth.
Dividend Discount Model Calculator — Value a Stock
Estimate a stock's intrinsic value with the Gordon Growth dividend discount model. Enter the dividend, growth rate, and required return.
Dividend Payout Ratio Calculator — Sustainability Check
Enter dividends per share and EPS to compute payout ratio, dividend coverage, retention rate, and FCF payout for a dividend safety check.
Dividend Yield Calculator — Evaluate Stock Income
Calculate dividend yield, annual income, per-payment amounts, and after-tax yield for any stock in seconds.
Double Discount Calculator — True Price After Two Sales
Find the real price after two stacked discounts. See why 30% off plus 20% off equals 44% off, not 50%, and check what you actually save.
Down Payment Calculator — Cash Needed to Close
Estimate your house down payment, loan amount, LTV, PMI, closing costs, and the months of saving it takes to reach closing day.
Dream Come True Calculator — Savings Timeline & Plan
See how long your savings will take to fund a dream — travel, wedding, business launch, or home — using contributions and compound growth.
DSCR Calculator — Debt Service Coverage Ratio
Compute debt service coverage ratio from rents, vacancy, expenses, and loan terms. See NOI, annual debt service, and the max loan a 1.25x DSCR supports.