Finance & Business
7 calculators
Before you take out a loan, open a savings account or set a price, run the numbers here. Each calculator shows the formula it uses, so you can check the result yourself.
Small business owners and online sellers will also find profit margin, markup, break-even and marketplace fee calculators that work in seconds.
Finance & Business calculators
Mortgage Calculator
Estimate your monthly mortgage payment with property tax, homeowners insurance, PMI and HOA dues, plus total interest and a yearly amortization table.
Loan Calculator
Calculate the monthly payment, total interest and payoff date for any fixed-rate loan, with an amortization schedule and extra payments.
CD Calculator
See how much a certificate of deposit earns by maturity, convert APY and APR, estimate tax on the interest and the cost of an early withdrawal.
Credit Card Payoff Calculator
Find how long it takes to pay off a credit card, the payment needed to be debt-free by a set date, and what paying only the minimum really costs.
Sales Tax Calculator
Add sales tax to a price, remove it from a total, or find the rate you paid. Includes 2026 statewide rates for all 50 states and D.C.
Amazon Fee Calculator
Work out Amazon referral fees, per-item and FBA fees, your payout, profit, margin and ROI, or find the price you need for a target profit.
Etsy Fee Calculator
See every Etsy fee on an order (listing, 6.5% transaction, payment processing, Offsite Ads), your payout and profit, or the price for a target profit.