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191 focused tools, organized by the kind of question you need to answer. Every calculation or transformation runs in your browser.

Follow the small-business pricing and profit calculation path →

Everyday math and money

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Taxes and long-term financial planning

Keep tax-rate, self-employment, payment, contribution, and retirement questions separate. Follow the 2026 federal tax calculation path →

High-Yield Savings CalculatorAPY growth, deposits, modeled interest, and ending balance. 401(k) Employer Match CalculatorEmployee contributions, employer match, fees, and long-term growth. 2026 401(k) Contribution Limit CalculatorRemaining employee deferral room, age catch-up, compensation, and Roth catch-up status. 2026 Federal Income Tax Bracket CalculatorOrdinary federal income tax, marginal bracket, effective rate, and tax inside each filing-status band. 2026 SALT Deduction Limit CalculatorStart with itemizing and a supported Schedule A subtotal, then apply the temporary cap, filing group, and MAGI phasedown. 2026 Standard vs. Itemized Deduction CalculatorCompare a supported Schedule A total with the filing-status, dependent, age or blindness, and nonitemizer-gift standard path. 2026 Enhanced Senior Deduction CalculatorCheck filing status, the age-65 cutoff, valid SSNs, Schedule 1-A MAGI, and the per-person 6% phaseout in four short steps. 2026 Qualified Tips Deduction CalculatorConfirm a voluntary tip, exact IRS occupation and TTOC, return eligibility, separately reported amount, per-return cap, and MAGI phaseout. 2026 Qualified Overtime Deduction CalculatorCheck FLSA, filing, SSN, reported premium-pay, annual-cap, and modified-AGI rules without treating all overtime pay as deductible. 2026 Child Tax Credit CalculatorEstimate CTC and ODC after the income phaseout, then optionally separate nonrefundable credit from regular-method ACTC. 2026 Earned Income Tax Credit CalculatorEstimate the 2026 EITC curve after checking the qualifying-child category, earned income, AGI, and investment-income limit. 2026 Child and Dependent Care Credit CalculatorEstimate the work-related care credit after benefits, expense and earned-income limits, the new 2026 rate, and available tax. 2026 Self-Employment Tax CalculatorEstimate Social Security, Medicare, Additional Medicare Tax, and the deductible half from net business profit. 2026 Additional Medicare Tax CalculatorEstimate the separate 0.9% Form 8959 liability from supported Medicare wages, self-employment income, and filing status. 2026 Alternative Minimum Tax CalculatorEstimate ordinary-path 2026 AMT from supported Form 6251 AMTI, the exemption and 50% phaseout, rate bands, and regular tax. 2026 ISO AMT Adjustment CalculatorCalculate the supported Form 6251 line 2i adjustment for one Form 3921 exercise lot after removing same-year dispositions. 2026 ISO Sale Tax and AMT Basis CalculatorClassify one ISO stock sale, separate regular compensation and capital gain, and reconcile the lot’s distinct AMT basis result. 2026 RSU Tax Withholding CalculatorEstimate federal supplemental income tax, Social Security, Medicare, and Additional Medicare withholding on one supported RSU vest. 2026 NSO Exercise Tax and Withholding CalculatorEstimate W-2 Code V wages, exercise cost, federal payroll withholding, cash funding, and initial stock basis for one supported employee exercise. 2026 ESPP Tax and Cost Basis CalculatorClassify one Section 423 sale, calculate ordinary compensation, adjust basis, and separate the remaining capital gain or loss. 2026 Qualified Business Income Deduction CalculatorUse supported Form 8995 or final Form 8995-A figures, the taxable-income limit, and the new active-business minimum. 2026 American Opportunity Tax Credit CalculatorCheck the return, income, student, 2026 SSN and school-EIN records, adjusted expenses, and refundable-versus-nonrefundable split. 2026 Lifetime Learning Credit CalculatorCheck the return, courses, 2026 SSN and Form 1098-T records, combined adjusted expenses, per-return ceiling, and nonrefundable limit. 2026 Saver’s Credit CalculatorCheck eligible contributors, filing status, the exact 2026 AGI rate band, adjusted retirement contributions, and recent distributions. 2026 Student Loan Interest Deduction CalculatorCheck borrower eligibility, filing status, MAGI, qualified-interest records, the $2,500 ceiling, and the 2026 income phaseout. 2026 Quarterly Estimated Tax CalculatorCompare the general current-year and prior-year safe-harbor methods, expected withholding, prior payments, and the cumulative target for each due date. 2026 Social Security Taxable Benefits CalculatorEstimate the Social Security or equivalent Tier 1 benefit amount included in federal income—not the tax owed on it. 2026 Long-Term Capital Gains Tax CalculatorStack eligible qualified dividends and long-term gains above ordinary income, then separate the amount taxed at 0%, 15%, and 20%. 2026 Net Investment Income Tax CalculatorEstimate the separate 3.8% NIIT from supported Form 8960 modified AGI, net investment income, and the individual filing-status threshold. 2026 Home Sale Capital Gain CalculatorSeparate sale price, selling expenses, adjusted basis, the supported home-sale exclusion, and potentially taxable gain. 2026 Car Loan Interest Deduction CalculatorCheck vehicle, purchase-loan, U.S.-assembly, modified-AGI, and qualified-interest rules before estimating the temporary deduction. 2026 HSA Contribution Limit CalculatorRemaining HSA room after coverage, eligible months, age-55 catch-up, employer deposits, and other contributions. Roth vs. Traditional 401(k) CalculatorCompare equal contributions, equal take-home-pay cost, taxes, growth, fees, and limits. 2026 Roth IRA Contribution Limit CalculatorApply the shared IRA limit, compensation cap, filing-status phase-out, and contributions already assigned. 2026 Traditional IRA Deduction CalculatorEstimate deductible contribution room after workplace coverage, filing status, modified AGI, compensation, and Roth contributions. Coast FIRE CalculatorSavings needed today to coast toward a future retirement target. Credit Card Payoff CalculatorFixed-payment payoff time, total interest, and total paid. Balance Transfer CalculatorTransfer fee, promotional APR, later APR, payoff time, and cost savings. FIRE CalculatorFinancial independence target, real-return timeline, and monthly CSV. Rent vs. Buy CalculatorMortgage, rent, transaction costs, equity, and invested cash-flow differences. Mortgage CalculatorHome price, down payment, principal, interest, taxes, insurance, HOA fees, and estimated PMI. Mortgage Affordability CalculatorIncome, debt, DTI limits, complete housing costs, price ceiling, and upfront cash. Mortgage Closing Costs CalculatorDown payment, itemized costs, credits, deposit, financed costs, and cash to close. Home Sale Proceeds CalculatorSeller fees, closing costs, credits, loan payoffs, net cash, and target sale price. Mortgage Points CalculatorPoint cost, payment savings, balance-aware break-even, and time-horizon value. Mortgage Refinance CalculatorCurrent and new payments, costs paid or financed, remaining balances, horizon savings, and break-even. Cash-Out Refinance CalculatorNew loan amount, cash retained, LTV, payment change, horizon balances, financing cost, and remaining equity. Mortgage Recast CalculatorCompare a lower recast payment with no lump sum and keeping the original payment. Mortgage Amortization CalculatorFixed-rate payment, extra principal, annual balances, and monthly CSV. HELOC Payment CalculatorInterest-only draw payments, repayment shock, fees, and a higher-rate stress scenario. Home Equity Loan CalculatorGross equity, LTV, proposed CLTV, payment, costs, and net proceeds. Debt Snowball CalculatorThree-debt payoff order, annual progress, and monthly CSV. Debt Consolidation CalculatorCompare current payoff cost with a new loan, term, and origination fee.

Home project materials and cost

Move from field measurements to waste, product coverage, and whole-package purchasing. Follow the home project calculator collection →

Travel and unit conversion

Estimate vehicle use and trip cost, or normalize common measurements. Follow the complete auto calculator collection →

Financial resilience

Protection and insurance planning

Personal balance sheet

Investment and purchasing power

Vehicle financing and compensation

Set the household ceiling before building a deal. Follow the auto planning path →

Retirement contributions, readiness, and distributions

Follow the questions in order with the retirement planning collection →

Budgeting and loan decisions

Writing and account security

Academic planning

Health, nutrition, and pregnancy dates

Use these adult screening and planning estimates with their limitations visible. Follow the health calculator collection in decision order →

Codes and sharing

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Popular math and time tools

Function visualization

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