ECONOMY STUDIOTools
Free calculators that start from today's official rates. No sign-up, nothing to install, and every result has its own link you can share.
What's my take-home pay?
Your pay after federal tax, Social Security, Medicare and state income tax, for each paycheck and for the year.
2026 IRS brackets · Social Security base $184,500 Social Security COLA calculatorWhat's my new benefit?
Your Social Security check after the cost-of-living raise, and after Medicare Part B.
2027 COLA: 3.6% (official) Mortgage calculatorWhat will my monthly payment be?
Monthly payment, total interest and the payoff schedule, starting from this week's average rate.
Starts at 7.18%, this week's 30-year average Home affordability calculatorHow much house can I afford?
The home price your income supports at this week's mortgage rate, with Fannie Mae's debt-to-income limits.
30-year average: 7.18% Retirement calculatorWill I have enough to retire?
Savings at retirement and the monthly income they could pay in today's money, plus Social Security.
2026 401(k) limit: $24,500 Inflation calculatorWhat's your $100 worth?
What money from any year since 1913 is worth today, from the official consumer price index.
Inflation now: 3.7% Compound interest calculatorHow much will my savings grow?
Growth with monthly deposits, and what it will really buy after inflation.
10-yr Treasury 4.88% · CD 1.76% Credit card payoff calculatorWhen will my card be paid off?
Payoff date and interest, against paying only the minimum, at today's average card rate.
Average card rate: 22.36% Car loan calculatorWhat will my car payment be?
Monthly payment and interest by loan length, at the Fed's average new-car loan rates.
60-month average: 7.54% RMD calculatorHow much must I withdraw?
Your required minimum distribution from the IRS Uniform Lifetime Table, and when RMDs start.
IRS table: 3.77% at age 73 Loan calculatorWhat will my loan cost?
Monthly payment, total interest and payoff date for any loan, from the Fed's average personal loan rate.
Personal loan average: 11.90% CD calculatorWhat will my CD earn?
Interest at the FDIC's national average CD rate for each term, and what it buys after inflation.
12-month CD average: 1.76% Savings vs inflationIs my savings rate beating prices?
What your savings will really buy, at today's average savings rate and inflation.
Savings 0.38% vs inflation 3.7%Educational tools, not financial advice. More calculators are on the way: get them first in The $100 Letter.