Financial calculators that give you straight answers
11 free calculators for the money questions people actually ask — what your dollars were worth back then, whether your deposits are insured, what breaking a CD really costs, and how fast your savings grow. No signup, no affiliate steering, just math.
Inflation Calculator
Compare buying power between 1913 and 2025 using published annual CPI data.
Open calculatorFDIC Insurance Calculator
Check how much of your deposits are actually insured — and how much is at risk.
Open calculatorCD Ladder Calculator
Build a CD ladder and see the maturity schedule and total interest.
Open calculatorCD Penalty Calculator
Estimate what closing your CD early could cost, using the terms in your agreement.
Open calculatorSavings Interest Calculator
Project how your savings grow with APY, compounding, and monthly deposits.
Open calculatorAPY ↔ APR Converter
Convert between APR and APY and see what compounding really does to a rate.
Open calculatorEmergency Fund Calculator
Work out how big your emergency fund should be — and how long it takes to build.
Open calculatorSavings Goal Calculator
How long until you hit your savings goal — or how much to save each month.
Open calculatorCD vs Savings
Lock in a CD or stay liquid in savings? Compare the actual dollars.
Open calculatorRule of 72
See how many years it takes for your money to double at any rate.
Open calculatorExtra Mortgage Payment
See how paying extra principal changes your mortgage payoff and interest cost.
Open calculatorWorking through a real decision?
Try the cash runway planner, CD versus Treasury bill comparison, or CD renewal planner.
Before you park your cash anywhere…
Explore available financial health grades, complaint records, and comparisons for U.S. banks and credit unions. Coverage varies by institution and reporting period.