Money Calculator

Paying $100 extra a month on a $20,000 loan saves 13 months and $824 in interest. See the real math behind extra payments, worked out step by step.

Your $5,000 bonus becomes just $3,268 in your account. See the real math behind the 22% bonus tax rate — and how to get that extra withholding back sooner.

Claiming Social Security at 62 vs. 70 can mean a $1,188 monthly gap. See the real math, the break-even age, and how to decide with our free calculator.

Daily vs. monthly compounding sounds like a technicality, but it can cost $15+ a year on card debt and $5,000 over 30 years of saving. See the real math.

Got a windfall to invest? See the real math on dollar-cost averaging vs. lump sum investing — and which strategy actually builds more wealth for you.

A debt consolidation loan can save you thousands in interest if you do it right. See the real math on $18,000 in debt, plus the trap that costs you more.

APY and APR sound almost the same but measure two different things. See the real math behind each and what mixing them up actually costs you a year.