Financial Calculators
Last updated: October 2026
CD Calculator (Certificate of Deposit)
Find what a certificate of deposit (CD) will be worth at maturity from the deposit, the APY and the term in months or years, and how much interest it earns.
Savings Goal Calculator
Work out the monthly contribution you need to hit a specific savings target by a fixed deadline, factoring in your current balance and the interest you expect to earn along the way.
Mortgage Payment Calculator
Estimate the full monthly cost of owning a home — principal, interest, property tax, and homeowner's insurance — bundled into the single number lenders call PITI.
Simple Interest Calculator
Calculate simple interest with I = P × r × t.
Rule of 72 and Doubling Time Calculator
How long money takes to double at a given interest rate: the Rule of 72 estimate (72 ÷ rate) next to the exact doubling time from the compound-growth formula, for annual, monthly, daily or continuous compounding.
Retirement Savings Calculator
Project the size of your retirement nest egg given your current age, retirement age, monthly contribution, and expected investment return.
Debt Payoff Calculator
Find out how many months it will take to pay off a credit card or loan from the balance, APR and monthly payment, and how much an extra payment speeds it up.
Tax Withholding Calculator
Estimate how much federal income tax should be withheld each month under the current (2020 and later) Form W-4, using 2026 tax brackets and standard deductions, your filing status, dependent credits, extra deductions, and any extra withholding you request.
Emergency Fund Calculator
Calculate how many months it takes to reach your emergency-fund goal given your essential monthly expenses, target months of coverage, current savings, monthly contribution, and a small interest rate on the parked cash.
Discount Percentage Calculator
Work out what percentage discount you are actually getting when a retailer advertises a dollar saving rather than a percentage off.
Future Value Calculator
Project what a starting balance plus equal yearly contributions will grow to at a fixed annual return, for savings, investments or retirement accounts.
Auto Loan Calculator
Estimate the monthly payment on a car loan from the price, down payment, trade-in, sales tax, interest rate and term.
Internal Rate of Return (IRR) Calculator
Find the annualized return that makes a project's net present value zero, assuming equal annual cash flows.
Net Worth Calculator
Add up what you own and subtract what you owe to get your net worth.
APR Calculator
Find the true APR of a fixed-rate loan once upfront fees are counted.
Effective Annual Rate (EAR) Calculator
Convert a stated nominal interest rate into the true annual rate once compounding is included.
VAT Calculator
Add VAT to a net price or remove it from a VAT-inclusive price at any rate.
Compound Interest Calculator
Project the future value of an investment given a lump-sum principal, recurring monthly contributions, an annual rate, and a compounding frequency.
Loan Payment Calculator
Compute the periodic payment for a fully amortising fixed-rate loan from the principal, annual interest rate, term in years, and payment frequency.