Every calculator runs privately inside your browser with exact number boxes + sliders, 2026 IRS/FRED/BLS baselines, 50-state tax memory, shareable scenario links, and 1-page PDF summaries.
What will my true monthly housing payment be after taxes, insurance, and PMI?
Calculate your real monthly US mortgage or refinance payment including principal, interest, state property taxes, homeowners insurance escrow, PMI, and HOA fees across all 50 states.
How fast can I pay off multiple high-APR credit cards and how much interest do I save?
Calculate exact credit card payoff timelines at any APR, compare Debt Avalanche vs. Debt Snowball rollover plans, and see how much interest you save over minimum payments.
What does an auto loan (with trade-in & sales tax) or fixed personal loan really cost?
Calculate monthly auto loan payments (separating cash down, trade-in value, trade-in payoff, and state sales tax) or fixed unsecured personal loan costs across 12 to 84 months.
How much will our 529 account cover at age 18 after college cost inflation?
Project 529 plan savings for university, community college, or trade school against college tuition inflation, with SECURE 2.0 Roth IRA rollover rules explained.
Does a lower-premium HDHP + HSA beat a traditional PPO for my medical bills?
Compare total annual health insurance costs between an HDHP + HSA and a traditional PPO with separate deductibles, coinsurance, out-of-pocket caps, and 2026 IRS HSA contribution limits.
How high are property taxes, HO-3 insurance, and shelter costs in my state?
Explore 50-state property tax rates, homeowners insurance benchmarks, rent-to-income shares, and documented composite housing stress scores.
How many years will my 401(k) and IRA last alongside Social Security?
Calculate your projected retirement nest egg and see how long your 401(k) and IRA savings last alongside monthly Social Security benefits and inflation.
What is my real take-home paycheck after taxes—and how much can go into a Roth IRA?
Calculate bi-weekly take-home pay after 2026 Federal brackets, 7.65% FICA, and State taxes—with automatic IRS Roth IRA earned-income cap enforcement.
Does a state-tax-exempt U.S. Treasury Bill beat my bank's CD or HYSA after taxes?
Compare 1-month to 10-year US Treasuries against Bank CDs and High-Yield Savings Accounts after federal tax, state income tax exemption, holding tenor, and inflation.
How much extra wealth do reinvested dividends (DRIP) and low 0.03% ETF fees build?
Simulate S&P 500 and dividend ETF portfolio compounding, comparing automatic DRIP share reinvestment against cash dividend payouts and mutual fund fee drag.
If a 55%–80% crash hits my crypto DCA position, what gain is needed to break even?
Model recurring DCA purchases, user-selected return assumptions, asymmetric crash recovery math (-50% needs +100%; -100% is total loss), and household net-worth exposure.
What is my household's personal inflation rate based on our actual monthly bills?
Calculate your household's weighted personal inflation rate across all 50 states based on your actual monthly housing, grocery, utility, auto insurance, and healthcare bills.
