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Use tool →Calculate Amazon FBA fees, profit margins, and ROI across 15 product categories with size tier breakdowns and price sensitivity analysis
Use tool →Calculate eBay seller fees across 14 categories and 5 store tiers including insertion, final value, promoted listings, and international fees
Use tool →Calculate Etsy seller fees including listing, transaction, payment processing, and offsite ad fees with profit margin analysis
Use tool →Compare LLC vs S-Corp tax savings with side-by-side analysis, self-employment tax breakdown, and optimal salary sensitivity chart
Use tool →Calculate profit margin, markup, and selling price with batch analysis and industry benchmarks
Use tool →Calculate gross and net profit margins with markup comparison
Use tool →Calculate Shopify store profitability across 4 plan tiers with payment processing fees, shipping costs, and break-even analysis
Use tool →Convert between px, rem, em, pt, and other CSS units
Use tool →Build and test cron expressions visually with human-readable descriptions and next run times
Use tool →Generate detailed loan amortization schedules showing principal, interest, and balance for each payment
Use tool →Calculate the true Annual Percentage Rate including fees, points, and closing costs for any loan
Use tool →Calculate monthly car payments, total interest, and amortization
Use tool →Calculate boat loan payments and total ownership costs including insurance and storage.
Use tool →Calculate business loan payments for Term Loans, SBA 7(a), Lines of Credit, and Equipment Financing
Use tool →Calculate cryptocurrency taxes on trades and transactions
Use tool →Compare current debts vs a consolidation loan
Use tool →Calculate Equated Monthly Installments for any loan with amortization schedule and prepayment analysis
Use tool →Estimate federal and state estate tax on an inheritance
Use tool →Calculate federal gift tax liability and track annual and lifetime gift tax exclusions.
Use tool →Estimate US federal income tax with brackets, FICA, and take-home pay
Use tool →Calculate monthly payments, interest, and amortization schedules
Use tool →Calculate mortgage payments with taxes, insurance, PMI, and amortization
Use tool →Calculate your net income after federal, state, and local taxes with detailed deduction breakdown
Use tool →See exactly where your paycheck goes — federal tax, state tax, FICA, 401(k), and take-home pay
Use tool →Calculate take-home pay with federal tax, FICA, state tax, and deductions
Use tool →Calculate how fast you can pay off debt with extra payments and see total interest savings
Use tool →Calculate federal, state, Social Security, and Medicare taxes with detailed net pay breakdown
Use tool →Calculate personal loan payments and total interest
Use tool →Calculate quarterly estimated tax payments with federal + state taxes, safe harbor rules, and payment deadlines for all 50 US states
Use tool →Calculate monthly RV loan payments with term comparison and total interest.
Use tool →Calculate sales tax for any US state with multi-item and reverse modes
Use tool →Calculate self-employment tax and quarterly estimated payments
Use tool →Calculate how much a side hustle could earn you after taxes
Use tool →Calculate real estate transfer taxes, title insurance, and closing costs by state
Use tool →Calculate student loan payments with Standard, Graduated, and Income-Driven repayment plans
Use tool →See which tax brackets your income falls into with effective rate
Use tool →Calculate federal tax withholding per paycheck and estimate your refund or amount owed
Use tool →Create professional invoices and download as PDF
Use tool →Calculate Health Savings Account tax savings and investment growth over time.
Use tool →Calculate capital gains tax on investments and property
Use tool →Calculate cryptocurrency mining profitability for 5 coins (BTC, ETH, LTC, DOGE, XMR) with electricity costs, ROI timeline, and break-even analysis
Use tool →Calculate cryptocurrency investment returns, profits, and ROI including fees and tax estimates
Use tool →Calculate return on investment, annualized ROI, and compare investments
Use tool →Calculate stock option values for ISO, NSO, and RSU grants with AMT exposure analysis, vesting timeline, and exercise strategy comparison
Use tool →Calculate stock investment returns including dividends, capital gains, and after-tax performance
Use tool →Estimate Airbnb rental income and profitability
Use tool →Calculate home equity, HELOC borrowing power, and loan payment estimates
Use tool →Calculate profit and ROI on a house flip project
Use tool →Calculate property taxes with exemptions and multi-year projections
Use tool →Estimate annual property taxes by entering your home value, assessment ratio, and local mill rate.
Use tool →Learn how to calculate your monthly mortgage payment with the amortization formula. Includes examples, tips for getting lower rates, and a free calculator.
Read guide →Understand compound interest and how it makes your money grow exponentially. Learn the formula, see real examples, and discover strategies to maximize compound growth.
Read guide →Learn the two proven strategies to pay off debt fast. Compare the debt snowball and debt avalanche methods with real examples and find which approach works best for you.
Read guide →Convert hourly wage to annual salary, understand tax deductions, and calculate your actual take-home pay. Includes federal and state tax breakdowns.
Read guide →NexTool provides free small business tools including payroll calculators, invoice generators, profit margin analyzers, tax estimators, loan comparison tools, and employee cost calculators. No sign-up or subscription needed.
Yes. Our invoice generator creates clean, professional invoices with your business name, client details, line items, tax calculations, and payment terms. Download as PDF and send to your clients right away.
Use our payroll calculator to estimate gross pay, federal and state tax withholdings, Social Security, Medicare, and net take-home pay for your employees. Enter salary or hourly rate with hours worked to get a complete breakdown.
Essential calculators and tools for freelancers — estimate income tax, convert hourly rates to annual salary, generate invoices, and calculate profit margins. All free, no sign-up required.
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20 toolsPlan your retirement with confidence — calculate 401(k) growth, estimate annuity income, project Social Security benefits, and analyze pension payouts. All free and private.
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12 toolsMaintain and improve your home by the numbers — calculate paint, tile, flooring, HVAC sizing, solar savings, kitchen remodel costs, and home equity. All free.
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