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.
432 calculators available
Lottery Tax Calculator — Net Jackpot After Taxes
Estimate the 24% federal withholding, state tax, and true net take-home on a lottery jackpot — lump sum cash or annual annuity payments.
LTV Calculator — Loan-to-Value Ratio & PMI Check
Calculate loan-to-value ratio instantly: LTV, CLTV, home equity, PMI removal timing at 80% and 78%, plus loan program LTV caps.
Lumpsum Calculator — Mutual Fund Growth & LTCG Tax
Project a one-time mutual fund investment to its future corpus after expense ratio drag, inflation, and 12.5% LTCG tax.
Lumpsum Plus SIP Calculator — Project Combined Corpus
Project the combined corpus of a one-time lump sum investment plus a monthly SIP with annual step-up, shown nominal and inflation-adjusted.
MAGI Calculator — Modified Adjusted Gross Income
Compute modified adjusted gross income to check Roth IRA limits, ACA premium tax credits, and Medicare IRMAA brackets.
Margin Comparison Calculator — Two Products Side by Side
Enter price, cost, and units sold for two products to compare gross margins side by side, see the points gap, and check which set earns more profit dollars.
Margin and VAT Calculator — Real Margin Ex-VAT
Strip VAT out of inclusive sales to see your true gross and net margin on VAT-exclusive revenue, with the overstatement gap priced in dollars.
Net Profit Margin Calculator — P&L Margin Ladder
Enter revenue, COGS, operating costs, interest, and tax rate to get your net profit margin plus the gross, operating, and pretax margin ladder.
Margin Call Calculator — Trigger Price & Deposit
Find the exact price that triggers a margin call, your equity cushion, and the cash needed to cure it under Reg T and FINRA rules.
Margin Discount Calculator — Price Cuts vs Profit
See what a discount really costs: new margin, lost profit per unit, the volume lift needed to break even, and the maximum discount your floor allows.
Margin Interest Calculator — Broker Loan Cost
Estimate monthly and total interest on a brokerage margin loan. Compare accrued vs paid interest and find the break-even return.
Margin of Safety Calculator — Sales Cushion %
Calculate the margin of safety in dollars, percent, and units from budgeted sales and break-even revenue, plus a sales-decline stress test.
Margin and Sales Tax Calculator — Final Retail Price
Combine your target profit margin and local sales tax rate to see the exact checkout price for any product you sell.
Marginal Cost Calculator — Cost of One More Unit
Find the marginal cost of one more unit from two production points, with an average cost trend check and a price-versus-MC verdict.
Marginal Revenue Calculator — MR From Two Points
Calculate marginal revenue from two price-quantity points, compare MR to marginal cost, and see exactly when the next unit stops adding profit.
Markdown Calculator — Staged Clearance Pricing
Plan staged retail markdowns: cumulative percent off the original ticket, final clearance price, and average price realized through sell-through.
Market Capitalization Calculator — Multi-Class & Size Band
Multiply each share class price by its share count, add them up, and get total market cap, a size-band verdict, and the 52-week cap range.
Conversion Rate Calculator — Marketing Benchmarks
Compute your conversion rate from visitors and conversions, compare it with industry bands, and price the gap to your target rate in orders and dollars.