39 practical finance tools

Finance Calculators

Explore 39 live finance calculators from MultiCalcWise to plan taxes, compare debt payoff strategies, model home-buying costs, optimize retirement contributions, and pressure-test major money decisions before you make them.

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Finance
Free online calculator

Monthly Mortgage Payment Calculator

MultiCalcWise

Get your full PITI payment breakdown and a complete amortization schedule.

  • Full PITI plus PMI and HOA breakdown
  • Down payment in dollars or percent
  • Amortization schedule with PMI drop-off estimate
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Finance
Free online calculator

Refinance Break-Even Calculator

MultiCalcWise

Find out exactly how many months until refinancing savings outweigh the closing costs.

  • Current payment, balance, and rate
  • New term and closing-cost assumptions
  • Break-even timing plus stay-period savings
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Finance
Free online calculator

Home Equity Calculator

MultiCalcWise

Calculate your current home equity, LTV ratio, and how much you could borrow with a HELOC.

  • Current value, balance, and liens
  • Equity percentage plus LTV indicator
  • Estimated borrowing room at 80% and 90% LTV
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Finance
Free online calculator

Rent vs. Buy Calculator

MultiCalcWise

Compare the true long-term cost of renting vs buying, including equity, appreciation, and opportunity cost.

  • Side-by-side renting and buying assumptions
  • 5, 10, and 30-year style scenario planning
  • Net cost difference plus breakeven timing
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Finance
Free online calculator

Mortgage Affordability Calculator

MultiCalcWise

Find out exactly how much home you can afford based on your income, debts, and down payment.

  • Gross income and monthly debts
  • Down payment plus rate assumptions
  • Maximum price and lender-style DTI view
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Finance
Free online calculator

Mortgage Payoff Calculator

MultiCalcWise

See how much interest you save by making extra mortgage payments and find your new payoff date.

  • Loan balance and interest rate
  • Monthly and one-time extra payments
  • New payoff date and interest saved
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Finance
Free online calculator

Loan Payoff Calculator

MultiCalcWise

Calculate how much interest you save by paying extra on any personal, auto, or student loan.

  • Works across common installment loan types
  • Monthly extra and one-time lump-sum scenarios
  • New payoff date plus interest savings
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Finance
Free online calculator

Credit Card Payoff Calculator

MultiCalcWise

See the shocking real cost of minimum payments and find your fastest path to zero.

  • Minimum payment cost and timeline
  • Fixed-payment comparison against the minimum path
  • Required payment to be debt-free by a chosen date
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Finance
Free online calculator

Net Worth Calculator

MultiCalcWise

Add up your assets and liabilities to see your true financial picture in one number.

  • Editable assets and liabilities side by side
  • Live totals for what you own and what you owe
  • Age-based net worth context and benchmark table
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Finance
Free online calculator

Pay Stub Calculator

MultiCalcWise

Understand every deduction on your paycheck with a cleaner tax and withholding breakdown.

  • Line-by-line paycheck breakdown
  • Federal, FICA, and state withholding estimates
  • Pre-tax and post-tax deduction impact
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Finance
Free online calculator

Take Home Pay Calculator

MultiCalcWise

Enter your salary or hourly rate and see what actually hits your bank account after taxes.

  • Salary and hourly income modes
  • Annual, monthly, and per-paycheck net pay
  • Effective and marginal tax-rate view
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Finance
Free online calculator

Emergency Fund Calculator

MultiCalcWise

Get a personalized emergency fund target based on your expenses and risk level.

  • Essential-expense total and target size
  • Risk-adjusted months-of-expenses recommendation
  • Build timeline with progress tracking
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Finance
Free online calculator

Retirement Savings Calculator

MultiCalcWise

Find out if you are on track to retire comfortably and what to change if you are not.

  • Projected nest egg and income estimate
  • Inflation-adjusted retirement need
  • Dynamic shortfall-closing suggestions
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Finance
Free online calculator

Investment Return Calculator

MultiCalcWise

See how compound interest grows your money over time with any contribution amount and return rate.

  • Future value with compound growth
  • Inflation-adjusted projection
  • Live return-rate comparison table
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Finance
Free online calculator

Per-Paycheck Savings Calculator

MultiCalcWise

Figure out how much to set aside each paycheck to reach any savings goal on time.

  • Savings goal amount
  • Pay frequency
  • Target date
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Finance
Free online calculator

Gig Worker Tax Estimator

MultiCalcWise

Calculate self-employment tax and quarterly payments as a freelancer, driver, or contractor.

  • Projected annual income
  • Business expenses
  • State or federal tax-rate assumptions
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Finance
Free online calculator

Debt Avalanche vs Snowball

MultiCalcWise

Compare both debt payoff strategies side by side to find which saves you more money.

  • Debt balances
  • Interest rates
  • Extra monthly payment amount
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Finance
Free online calculator

Rent-to-Income Checker

MultiCalcWise

Instantly see if an apartment fits your budget using the classic income rule as a quick screen.

  • Monthly rent
  • Gross monthly income
  • Utilities or housing extras
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Finance
Free online calculator

Biweekly Budget Planner

MultiCalcWise

Map your biweekly paycheck to monthly bills so you never get caught short.

  • Biweekly take-home pay
  • Fixed monthly bills
  • Variable spending targets
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Finance
Free online calculator

W-4 Withholding Calculator

MultiCalcWise

Estimate whether your current withholding leads to a refund, balance due, or a close match at tax time.

  • Filing status and multiple-job setup
  • Dependents, deductions, and other income
  • Step 4(c) extra withholding estimate
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Finance
Free online calculator

Capital Gains Tax Calculator

MultiCalcWise

Compare short-term and long-term capital gains treatment and see how much holding a little longer may save in tax.

  • Stocks, real estate, crypto, or other assets
  • Holding-period tax comparison
  • Days-to-long-term savings estimate
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Finance
Free online calculator

Sales Tax Calculator

MultiCalcWise

Add tax, remove tax, or compare the same purchase across multiple states in one place.

  • Add sales tax to a price
  • Reverse tax from a final total
  • Side-by-side state comparison
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Finance
Free online calculator

Self-Employed Tax Deductions Calculator

MultiCalcWise

Add up home office, mileage, phone, and other write-offs that reduce taxable self-employment income.

  • Home office percentage logic
  • Mileage and recurring business-use costs
  • Missed-deduction checklist
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Finance
Free online calculator

Closing Costs Calculator

MultiCalcWise

Estimate buyer and seller closing costs with an itemized breakdown that goes beyond the headline price.

  • Buyer, seller, or both sides
  • State-sensitive transfer-tax estimate
  • Cash-to-close and percentage view
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Finance
Free online calculator

Property Tax Calculator

MultiCalcWise

Estimate annual property tax and monthly escrow from home value using state-level effective rates.

  • Home-value-based estimate
  • Low / average / high range
  • State property-tax ranking table
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Finance
Free online calculator

House Flipping Profit Calculator

MultiCalcWise

Check profit, ROI, break-even, and the 70% rule before deciding whether a flip is worth the risk.

  • Purchase, repairs, and holding costs
  • Net sale proceeds after fees
  • 70% rule pass/fail output
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Finance
Free online calculator

Mortgage Points Calculator

MultiCalcWise

See whether buying mortgage points is worth it based on break-even timing and how long you expect to stay.

  • Point cost vs payment savings
  • Break-even months
  • Stay-period savings estimate
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Finance
Free online calculator

Student Loan Payoff Calculator

MultiCalcWise

Compare standard, extended, income-driven, and extra-payment scenarios for student debt.

  • Standard vs IDR comparison
  • Income and family-size inputs
  • Payoff time and total interest
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Finance
Free online calculator

Debt-to-Income Ratio Calculator

MultiCalcWise

Calculate front-end and back-end DTI and see how lenders may view your current debt load.

  • Housing and nonhousing debts
  • Conventional, FHA, VA, and personal-loan checks
  • Debt-reduction target to qualify
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Finance
Free online calculator

Balance Transfer Calculator

MultiCalcWise

Find out whether a 0% balance transfer saves real money after the fee and promo window are counted.

  • Current APR vs 0% promo math
  • Transfer-fee impact
  • Payoff-in-time warning
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Finance
Free online calculator

401(k) Contribution Calculator

MultiCalcWise

See whether you are leaving employer match on the table and how contributions affect taxes and take-home pay.

  • Employer-match optimization
  • Tax-savings estimate
  • Per-paycheck impact
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Finance
Free online calculator

Roth IRA Calculator

MultiCalcWise

Compare Roth and Traditional IRA outcomes based on your current and future tax assumptions.

  • Roth vs Traditional side by side
  • 2025 contribution limits
  • After-tax retirement-value comparison
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Finance
Free online calculator

HSA Calculator

MultiCalcWise

Estimate current tax savings and long-term invested HSA growth with the triple-tax-advantage view.

  • 2025 HSA contribution limits
  • Federal, state, and payroll-tax savings
  • Retirement-balance projection
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Finance
Free online calculator

Dollar Cost Averaging Calculator

MultiCalcWise

Compare recurring DCA investing with a lump sum so you can see both the math and the tradeoff clearly.

  • DCA vs lump-sum comparison
  • Stocks, crypto, or other investing mode
  • Contribution and ending-value view
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Finance
Free online calculator

Car Affordability Calculator

MultiCalcWise

Estimate the true monthly cost of a car after insurance, gas, maintenance, and registration are included.

  • Loan payment and all-in monthly cost
  • Annual and five-year ownership cost
  • Rule-of-thumb affordability check
Open Calculator →
Finance
Free online calculator

College Savings Calculator

MultiCalcWise

Project how much you need to save for college based on age, inflation, and how late you are starting.

  • Inflation-adjusted future college cost
  • Future value of current savings
  • Monthly savings target and cost of waiting
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Finance
Free online calculator

Wedding Budget Calculator

MultiCalcWise

Build a realistic wedding budget from guest count, location type, style, and your total spending ceiling.

  • Guest-count and venue-style inputs
  • Category allocation by percentage
  • Average-cost comparison and budget signal
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Finance
Free online calculator

Baby Cost Calculator

MultiCalcWise

Estimate first-year baby costs with delivery, childcare, feeding, and location assumptions that actually matter.

  • Insurance and delivery type
  • Childcare and feeding plan
  • Monthly and annual breakdown
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Finance
Free online calculator

Moving Cost Calculator

MultiCalcWise

Estimate low, average, and high moving costs based on distance, home size, move type, and add-on services.

  • Local, same-state, or cross-country modes
  • Mover, truck, container, or hybrid options
  • Packing, storage, piano, and car-shipping add-ons
Open Calculator →

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Frequently Asked Questions

Start with the tool closest to the decision you are making right now, whether that is saving, renting, borrowing, budgeting, or taxes.

Yes. The finance calculators are built to update instantly as you type.

Yes. They are especially useful for rough planning before you move to a spreadsheet or final lender paperwork.

No. They help you understand tradeoffs quickly, but important decisions should still be verified with trusted documents or professionals.

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