Straightforward money calculators.
No sign-up, no email required. Every calculator on ClearSum shows its math and its assumptions, right on the page.
Home Buying
Mortgage Calculator
Monthly payment including principal, interest, taxes, insurance, PMI, and HOA.
Open calculator →Retirement
Social Security Estimator
See how claiming at 62 vs. full retirement age vs. 70 changes your monthly benefit.
Open calculator →Income
Paycheck Calculator
Estimate your take-home pay after federal tax, FICA, and 401(k) contributions.
Open calculator →Borrowing
Auto Loan Calculator
Monthly car payment including trade-in value and estimated sales tax.
Open calculator →Debt
Debt Payoff Calculator
How long a fixed monthly payment takes to clear a credit card or loan balance.
Open calculator →Savings
Compound Interest Calculator
Project how savings or investments grow with regular monthly contributions.
Open calculator →Investing
Dividend Reinvestment (DRIP) Calculator
See how much reinvesting dividends adds to a stock position over time vs. taking the cash.
Open calculator →Everyday
Tip & Bill Split Calculator
Tip amount and per-person total for splitting a restaurant bill.
Open calculator →
Want the reasoning behind the numbers?
Our Guides section covers how mortgage rates actually work, how to think about when to claim Social Security, what's on your pay stub, and the real tradeoffs of dividend reinvestment.