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Swiftly.tools
24 calculators · 6 categories

The complete
index.

Every calculator on the platform, ordered by category. Each runs entirely in your browser with 2026 tax brackets, Federal Reserve rate data and state-level averages — free, with no sign-up.

Cost
$0
Data stored
None
Tax year
2026
  1. 01Loan CalculatorCompare two offers, three fee treatments, accelerated cadence and extra-principal payoff.
  2. 02Auto Loan CalculatorPayment, true cost, equity crossover and the OBBBA interest deduction, by state.
  3. 03Car Insurance EstimatorFour coverage tiers, deductible and discount comparisons, liability gaps, loan or lease exposure and state rating rules.
  4. 04Home Insurance CalculatorState premium anchors, Coverage A–F, custom rebuild cost, credit and home-age factors, wind deductibles, flood caps and theft sublimits.
  5. 05Mortgage CalculatorTrue PITI payments with state-specific taxes, PMI removal logic and rate stress tests.
  6. 06HELOC CalculatorCredit limit vs amount drawn, draw and repayment rates, +2-point stress test, and HELOC vs fixed second vs cash-out refinance.
  7. 07Rent vs Buy CalculatorMonth-by-month net-worth projection with persistent break-even, PMI auto-cancel, 2026 deduction and SALT modelling, the home-sale exclusion, and a today's-money toggle.
  8. 08Refinance CalculatorFour refinance types, honest break-even, present-value and recast comparisons, points, PMI removal, tax treatment and the new loan — with its amortisation schedule and payoff date.
  9. 09Paycheck CalculatorAverage paycheck and annualized take-home with Publication 15-T W-4 withholding, FICA, editable state/local rates and payroll deductions.
  10. 101099 vs W-2 CalculatorTrue take-home comparison after SE tax, QBI deduction and business expenses.
  11. 11401(k) Calculator2026-limit-aware projection with match capture, vesting, fees, Roth comparison, RMDs and Social Security.
  12. 12Student Loan CalculatorCurrent 2026 eligibility, spouse-debt proration, subsidy history, PSLF, exact schedules and honest PAYE sunset treatment.
  13. 13Debt Payoff CalculatorSnowball vs avalanche, true minimum-only baseline, windfalls, payoff-goal payments, exact dates and monthly/debt-level exports.
  14. 14Capital Gains CalculatorIncremental 2026 tax with exact Schedule D special-rate allocation, basis, exclusions and carryforwards.
  15. 15Cost of Living CalculatorOfficial metro price levels, equivalent salary, four custom budget categories and transparent tax assumptions.
  16. 16SaaS Valuation CalculatorDated SCI assumption, transparent ARR multiple, Rule of 40, burn multiple, sensitivity and optional fundraising dilution.
  17. 17EBITDA CalculatorUnadjusted EBITDA, Adjusted EBITDA and SDE with explicit multiples and a debt/cash equity bridge.
  18. 18Freelance Rate CalculatorExplicit tax and deductible-cost treatment, billable utilization, markup or margin, and project pricing.
  19. 19Burn Rate CalculatorStatic and dynamic runway, target cash, expense-cut solver, scenarios and same-period burn multiple.
  20. 20LTV:CAC CalculatorSubscription, known-lifetime and repeat-purchase models with discounting, sensitivity and target acquisition planning.
  21. 21Life Insurance CalculatorPresent-value coverage need, SSA-year survivor offset, liquid assets, term ladder and illustrative premium benchmarks.
  22. 22LLM Token Cost CalculatorMonthly and per-task API cost, local token counting, custom rates and source-linked model comparisons.
  23. 23Image CompressorLocal JPG, PNG, WebP, AVIF and still-GIF compression with decimal-KB targets and ZIP export.
  24. 24Macro CalculatorThree resting-energy equations, feasible macro splits and exact rounded targets for 2–6 meals.

Where to start

01

Start with the biggest decision

Mortgage, rent vs buy and refinance share the same inputs — model the payment, then test whether buying beats renting in your market.

Mortgage calculator
02

Then check your paycheck

Take-home pay drives every other number. Confirm what actually lands in your account before sizing a mortgage or a rate.

Paycheck calculator
03

Business owners start here

SaaS valuation, EBITDA/SDE and LTV:CAC use the same revenue base. Work down from ARR to a defensible multiple range.

SaaS valuation

24 tools available. Results are educational estimates, not financial advice.