# Numeraty > Free online financial calculators, unit converters, engineering tools, and planning tools. Numeraty provides 225+ free calculators and converters across 9 categories. All tools run entirely in the browser with real-time results, shareable URLs, and no login required. ## LLM Discovery - [Full URL inventory](https://numeraty.com/llms-full.txt) - [XML sitemap index](https://numeraty.com/sitemap-index.xml) - [Methodology](https://numeraty.com/methodology/) ## Guides (educational explainers — best pages to cite for how/why questions) - [15-Year vs 30-Year Mortgage: Which Is Right for You?](https://numeraty.com/guides/15-year-vs-30-year-mortgage/) - [2026 Tax Brackets and Rates: How Much Will You Owe?](https://numeraty.com/guides/tax-brackets-2026-guide/) - [401(k) vs Roth IRA: Where Should Your Money Go First?](https://numeraty.com/guides/401k-vs-roth-ira/) - [APR vs Interest Rate: The Difference in Dollars](https://numeraty.com/guides/apr-vs-interest-rate/) - [Are Solar Panels Worth It in 2026? ROI by State](https://numeraty.com/guides/solar-panel-savings-guide/) - [Auto Insurance in 2026: How to Lower Your Premium](https://numeraty.com/guides/auto-insurance-guide-2026/) - [Best High-Yield Savings Accounts in 2026: APY Comparison](https://numeraty.com/guides/best-high-yield-savings-accounts-2026/) - [BMI vs Body Fat Percentage: Which Actually Matters?](https://numeraty.com/guides/bmi-vs-body-fat/) - [Compound Interest Explained: How Your Money Grows Exponentially](https://numeraty.com/guides/compound-interest-explained/) - [Credit Card Payoff Strategies: How to Eliminate High-Interest Debt](https://numeraty.com/guides/credit-card-payoff-strategies/) - [Debt Snowball vs Avalanche Method: Which Pays Off Debt Faster?](https://numeraty.com/guides/debt-snowball-vs-avalanche/) - [Does Debt Consolidation Make Sense? Break-Even Math](https://numeraty.com/guides/does-debt-consolidation-make-sense/) - [EV vs Gas Car in 2026: True Cost of Ownership Compared](https://numeraty.com/guides/ev-vs-gas-car-2026/) - [FHA vs Conventional Loan: Which Mortgage Is Right for You?](https://numeraty.com/guides/fha-vs-conventional-loan/) - [First-Time Homebuyer Guide 2026: Step-by-Step](https://numeraty.com/guides/first-time-homebuyer-guide-2026/) - [How Car Trade-In Values Work (and How to Get More)](https://numeraty.com/guides/car-trade-in-value-guide/) - [How Many Calories Should You Eat to Lose Weight?](https://numeraty.com/guides/how-many-calories-to-lose-weight/) - [How Much Car Can I Afford? The 20/4/10 Rule Explained](https://numeraty.com/guides/how-much-car-can-i-afford/) - [How Much Emergency Fund Do You Really Need?](https://numeraty.com/guides/emergency-fund-how-much/) - [How Much House Can I Afford? A Step-by-Step Guide](https://numeraty.com/guides/how-much-house-can-i-afford/) - [How Much Life Insurance Do I Need? The DIME Method](https://numeraty.com/guides/how-much-life-insurance-do-i-need/) - [How Much Paint Do I Need? Room-by-Room Calculator Guide](https://numeraty.com/guides/how-much-paint-do-i-need/) - [How Much Should You Have Saved for Retirement by Age?](https://numeraty.com/guides/retirement-savings-by-age/) - [How Much Water Should You Drink Per Day? The Science](https://numeraty.com/guides/how-much-water-should-i-drink/) - [How to Calculate Concrete for Any Project: Slabs, Footings, and Posts](https://numeraty.com/guides/how-to-calculate-concrete/) - [How to Lower Your Debt-to-Income Ratio Fast](https://numeraty.com/guides/how-to-lower-your-debt-to-income-ratio/) - [How to Pay Off Student Loans Fast: 7 Strategies That Work](https://numeraty.com/guides/how-to-pay-off-student-loans-fast/) - [How to Pay Off Your Mortgage Early: 4 Ways Compared](https://numeraty.com/guides/how-to-pay-off-your-mortgage-early/) - [Is Gap Insurance Worth It? Run the Numbers](https://numeraty.com/guides/is-gap-insurance-worth-it/) - [Lease vs Buy a Car in 2026: The Complete Math](https://numeraty.com/guides/lease-vs-buy-car-2026/) - [Mortgage Closing Costs Explained: What You Pay and Why](https://numeraty.com/guides/closing-costs-explained/) - [Mortgage Points: When Buying the Rate Down Pays](https://numeraty.com/guides/mortgage-points-break-even/) - [Mortgage Rates in 2026: Current Rates, Forecast, and What to Do](https://numeraty.com/guides/mortgage-rates-2026-forecast/) - [Renting vs Buying a Home in 2026: The Complete Analysis](https://numeraty.com/guides/renting-vs-buying-2026/) - [Retirement Planning by Age: Your Decade-by-Decade Guide](https://numeraty.com/guides/retirement-planning-by-age/) - [Roth IRA vs Traditional IRA: Which Should You Choose?](https://numeraty.com/guides/roth-ira-vs-traditional-ira/) - [The 50/30/20 Budget Rule: How to Actually Follow It](https://numeraty.com/guides/how-to-budget-50-30-20-rule/) - [The Best Debt Payoff Strategy for Your Situation](https://numeraty.com/guides/best-debt-payoff-strategy/) - [What Is a Good Debt-to-Income Ratio for a Loan?](https://numeraty.com/guides/what-is-a-good-debt-to-income-ratio/) - [What PMI Costs and How to Remove Mortgage Insurance](https://numeraty.com/guides/pmi-cost-and-how-to-remove-it/) - [When to Refinance Your Mortgage: The Complete Decision Guide](https://numeraty.com/guides/when-to-refinance-mortgage/) ## Categories ### Mortgage & Real Estate (22 tools) - [Mortgage Calculator](https://numeraty.com/mortgage-calculator/) - [Mortgage Payment Calculator](https://numeraty.com/mortgage-payment-calculator/) - [15-Year Mortgage Calculator](https://numeraty.com/15-year-mortgage-calculator/) - [40-Year Mortgage Calculator](https://numeraty.com/40-year-mortgage-calculator/) - [50-Year Mortgage Calculator](https://numeraty.com/50-year-mortgage-calculator/) - [Interest-Only Mortgage Calculator](https://numeraty.com/interest-only-mortgage-calculator/) - [Mortgage Payoff Calculator](https://numeraty.com/mortgage-payoff-calculator/) - [Mortgage Refinance Calculator](https://numeraty.com/mortgage-refinance-calculator/) - [Refinance Calculator](https://numeraty.com/refinance-calculator/) - [Amortization Calculator](https://numeraty.com/amortization-calculator/) - [Real Estate Affordability Calculator](https://numeraty.com/real-estate-affordability-calculator/) - [Home Improvement Calculator](https://numeraty.com/home-improvement-calculator/) - [Rent Calculator](https://numeraty.com/rent-calculator/) - [FHA Loan Calculator](https://numeraty.com/fha-loan-calculator/) - [VA Loan Calculator](https://numeraty.com/va-loan-calculator/) - [HELOC Calculator](https://numeraty.com/heloc-calculator/) - [Closing Cost Calculator](https://numeraty.com/closing-cost-calculator/) - [Mortgage Points Calculator](https://numeraty.com/mortgage-points-calculator/) - [Property Tax Calculator](https://numeraty.com/property-tax-calculator/) - [Home Equity Calculator](https://numeraty.com/home-equity-calculator/) - [Jumbo Mortgage Calculator](https://numeraty.com/jumbo-mortgage-calculator/) - [HOA Fee Calculator](https://numeraty.com/hoa-fee-calculator/) - [Rent vs Buy Calculator](https://numeraty.com/rent-vs-buy-calculator/) ### Auto & Vehicle (29 tools) - [Auto Loan Calculator](https://numeraty.com/auto-loan-calculator/) - [Auto Lease Calculator](https://numeraty.com/auto-lease-calculator/) - [Auto Loan Comparison](https://numeraty.com/auto-loan-comparison/) - [Auto Insurance Estimator](https://numeraty.com/auto-insurance-calculator/) - [Car Affordability Calculator](https://numeraty.com/car-affordability-calculator/) - [Fuel Cost Calculator](https://numeraty.com/fuel-cost-calculator/) - [Loan vs Lease Calculator](https://numeraty.com/loan-vs-lease-calculator/) - [Auto Refinance Calculator](https://numeraty.com/auto-refinance-calculator/) - [Car Depreciation Calculator](https://numeraty.com/car-depreciation-calculator/) - [New vs Used Car Calculator](https://numeraty.com/new-vs-used-car-calculator/) - [Down Payment Optimizer](https://numeraty.com/down-payment-optimizer/) - [Car Trade-In Calculator](https://numeraty.com/car-trade-in-calculator/) - [Gap Insurance Calculator](https://numeraty.com/gap-insurance-calculator/) - [Vehicle Total Cost of Ownership](https://numeraty.com/vehicle-total-cost-calculator/) - [Annual Car Expense Calculator](https://numeraty.com/annual-car-expense-calculator/) - [Car Maintenance Cost Calculator](https://numeraty.com/car-maintenance-calculator/) - [Monthly Car Budget Calculator](https://numeraty.com/monthly-car-budget-calculator/) - [MPG Calculator](https://numeraty.com/mpg-calculator/) - [Road Trip Cost Calculator](https://numeraty.com/road-trip-cost-calculator/) - [EV Charging Cost Calculator](https://numeraty.com/ev-charging-cost-calculator/) - [EV vs Gas Total Cost Calculator](https://numeraty.com/ev-vs-gas-calculator/) - [Carpool Savings Calculator](https://numeraty.com/carpool-savings-calculator/) - [Full Coverage vs Liability Calculator](https://numeraty.com/full-coverage-vs-liability-calculator/) - [Commute Cost Calculator](https://numeraty.com/commute-cost-calculator/) - [Car vs Public Transit Calculator](https://numeraty.com/car-vs-transit-calculator/) - [Mileage Reimbursement Calculator](https://numeraty.com/mileage-reimbursement-calculator/) - [Rideshare vs Car Ownership Calculator](https://numeraty.com/rideshare-vs-car-calculator/) - [Car Sales Tax Calculator](https://numeraty.com/car-sales-tax-calculator/) - [Vehicle Registration Cost Estimator](https://numeraty.com/vehicle-registration-calculator/) ### Savings & Investment (21 tools) - [Compound Interest Calculator](https://numeraty.com/compound-interest-calculator/) - [Savings Calculator](https://numeraty.com/savings-calculator/) - [401(k) Calculator](https://numeraty.com/401k-calculator/) - [IRA Calculator](https://numeraty.com/ira-calculator/) - [Roth IRA Calculator](https://numeraty.com/roth-ira-calculator/) - [CD Calculator](https://numeraty.com/cd-calculator/) - [Retirement Calculator](https://numeraty.com/retirement-calculator/) - [Education Savings Calculator](https://numeraty.com/education-savings-calculator/) - [Investment Returns Calculator](https://numeraty.com/investment-returns-calculator/) - [Annuity Calculator](https://numeraty.com/annuity-calculator/) - [Annuity Payout Calculator](https://numeraty.com/annuity-payout-calculator/) - [FIRE Calculator](https://numeraty.com/fire-calculator/) - [Dividend Reinvestment Calculator](https://numeraty.com/dividend-reinvestment-calculator/) - [Dollar Cost Averaging Calculator](https://numeraty.com/dollar-cost-averaging-calculator/) - [Rule of 72 Calculator](https://numeraty.com/rule-of-72-calculator/) - [APY Calculator](https://numeraty.com/apy-calculator/) - [Stock Return Calculator](https://numeraty.com/stock-return-calculator/) - [529 Plan Calculator](https://numeraty.com/529-plan-calculator/) - [Money Market Calculator](https://numeraty.com/money-market-calculator/) - [College Cost Calculator](https://numeraty.com/college-cost-calculator/) - [Wealth Growth Calculator](https://numeraty.com/wealth-growth-calculator/) ### Debt & Loans (15 tools) - [Credit Card Payoff Calculator](https://numeraty.com/credit-card-payoff-calculator/) - [Student Loan Calculator](https://numeraty.com/student-loan-calculator/) - [Personal Loan Calculator](https://numeraty.com/personal-loan-calculator/) - [Debt Payoff Calculator](https://numeraty.com/debt-payoff-calculator/) - [Debt-to-Income Ratio Calculator](https://numeraty.com/debt-to-income-ratio-calculator/) - [Loan Comparison Calculator](https://numeraty.com/loan-comparison-calculator/) - [Interest Rate Calculator](https://numeraty.com/interest-rate-calculator/) - [Debt Snowball Calculator](https://numeraty.com/debt-snowball-calculator/) - [Debt Avalanche Calculator](https://numeraty.com/debt-avalanche-calculator/) - [Balance Transfer Calculator](https://numeraty.com/balance-transfer-calculator/) - [Debt Consolidation Calculator](https://numeraty.com/debt-consolidation-calculator/) - [Home Equity Loan Calculator](https://numeraty.com/home-equity-loan-calculator/) - [Minimum Payment Calculator](https://numeraty.com/minimum-payment-calculator/) - [HELOC Payment Calculator](https://numeraty.com/heloc-payment-calculator/) - [Payoff Date Calculator](https://numeraty.com/payoff-date-calculator/) ### Tax & Business (34 tools) - [Tax Calculator](https://numeraty.com/tax-calculator/) - [Sales Tax Calculator](https://numeraty.com/sales-tax-calculator/) - [Salary Calculator](https://numeraty.com/salary-calculator/) - [Take-Home Pay Calculator](https://numeraty.com/take-home-pay-calculator/) - [Profit Margin Calculator](https://numeraty.com/profit-margin-calculator/) - [ROI Calculator](https://numeraty.com/roi-calculator/) - [Commission Calculator](https://numeraty.com/commission-calculator/) - [Break-Even Calculator](https://numeraty.com/break-even-calculator/) - [Depreciation Calculator](https://numeraty.com/depreciation-calculator/) - [Budget Calculator](https://numeraty.com/budget-calculator/) - [Net Worth Calculator](https://numeraty.com/net-worth-calculator/) - [Inflation Calculator](https://numeraty.com/inflation-calculator/) - [Bond Calculator](https://numeraty.com/bond-calculator/) - [Estate Tax Calculator](https://numeraty.com/estate-tax-calculator/) - [Marriage Tax Calculator](https://numeraty.com/marriage-tax-calculator/) - [Pension Calculator](https://numeraty.com/pension-calculator/) - [RMD Calculator](https://numeraty.com/rmd-calculator/) - [Social Security Calculator](https://numeraty.com/social-security-calculator/) - [Emergency Fund Calculator](https://numeraty.com/emergency-fund-calculator/) - [Long-Term Care Calculator](https://numeraty.com/long-term-care-calculator/) - [Currency Conversion Calculator](https://numeraty.com/currency-conversion-calculator/) - [Capital Gains Tax Calculator](https://numeraty.com/capital-gains-tax-calculator/) - [Self-Employment Tax Calculator](https://numeraty.com/self-employment-tax-calculator/) - [Hourly to Salary Calculator](https://numeraty.com/hourly-to-salary-calculator/) - [Salary to Hourly Calculator](https://numeraty.com/salary-to-hourly-calculator/) - [Tip Calculator](https://numeraty.com/tip-calculator/) - [Payroll Tax Calculator](https://numeraty.com/payroll-tax-calculator/) - [Overtime Calculator](https://numeraty.com/overtime-calculator/) - [Freelance Rate Calculator](https://numeraty.com/freelance-rate-calculator/) - [Markup Calculator](https://numeraty.com/markup-calculator/) - [Discount Calculator](https://numeraty.com/discount-calculator/) - [Cash Flow Calculator](https://numeraty.com/cash-flow-calculator/) - [Business Loan Calculator](https://numeraty.com/business-loan-calculator/) - [Invoice Calculator](https://numeraty.com/invoice-calculator/) ### Unit Converters (32 tools) - [Temperature Converter](https://numeraty.com/temperature-converter/) - [Length Converter](https://numeraty.com/length-converter/) - [Weight Converter](https://numeraty.com/weight-converter/) - [Volume Converter](https://numeraty.com/volume-converter/) - [Area Converter](https://numeraty.com/area-converter/) - [Speed Converter](https://numeraty.com/speed-converter/) - [Pressure Converter](https://numeraty.com/pressure-converter/) - [Energy Converter](https://numeraty.com/energy-converter/) - [Power Converter](https://numeraty.com/power-converter/) - [Force Converter](https://numeraty.com/force-converter/) - [Angle Converter](https://numeraty.com/angle-converter/) - [Time Converter](https://numeraty.com/time-converter/) - [Data Storage Converter](https://numeraty.com/data-storage-converter/) - [Data Transfer Converter](https://numeraty.com/data-transfer-converter/) - [Frequency Converter](https://numeraty.com/frequency-converter/) - [Density Converter](https://numeraty.com/density-converter/) - [Torque Converter](https://numeraty.com/torque-converter/) - [Flow Converter](https://numeraty.com/flow-converter/) - [Acceleration Converter](https://numeraty.com/acceleration-converter/) - [Currency Converter](https://numeraty.com/currency-converter/) - [Numbers Converter](https://numeraty.com/numbers-converter/) - [Typography Converter](https://numeraty.com/typography-converter/) - [Case Converter](https://numeraty.com/case-converter/) - [Unit Conversion Calculator](https://numeraty.com/unit-conversion-calculator/) - [Color Converter](https://numeraty.com/color-converter/) - [Cooking Converter](https://numeraty.com/cooking-converter/) - [Shoe Size Converter](https://numeraty.com/shoe-size-converter/) - [Unix Timestamp Converter](https://numeraty.com/unix-timestamp-converter/) - [Timezone Converter](https://numeraty.com/timezone-converter/) - [Clothing Size Converter](https://numeraty.com/clothing-size-converter/) - [Fuel Economy Converter](https://numeraty.com/fuel-economy-converter/) - [Roman Numeral Converter](https://numeraty.com/roman-numeral-converter/) ### Health & Fitness (20 tools) - [BMI Calculator](https://numeraty.com/bmi-calculator/) - [Body Fat Calculator](https://numeraty.com/body-fat-calculator/) - [Calorie Calculator](https://numeraty.com/calorie-calculator/) - [Heart Rate Calculator](https://numeraty.com/heart-rate-calculator/) - [Health Insurance Calculator](https://numeraty.com/health-insurance-calculator/) - [Disability Insurance Calculator](https://numeraty.com/disability-insurance-calculator/) - [Life Insurance Calculator](https://numeraty.com/life-insurance-calculator/) - [Pet Insurance Calculator](https://numeraty.com/pet-insurance-calculator/) - [Home Insurance Calculator](https://numeraty.com/home-insurance-calculator/) - [Umbrella Insurance Calculator](https://numeraty.com/umbrella-insurance-calculator/) - [TDEE Calculator](https://numeraty.com/tdee-calculator/) - [Macro Calculator](https://numeraty.com/macro-calculator/) - [Ideal Weight Calculator](https://numeraty.com/ideal-weight-calculator/) - [Pregnancy Due Date Calculator](https://numeraty.com/pregnancy-due-date-calculator/) - [Water Intake Calculator](https://numeraty.com/water-intake-calculator/) - [Sleep Calculator](https://numeraty.com/sleep-calculator/) - [Pace Calculator](https://numeraty.com/pace-calculator/) - [Blood Alcohol Calculator](https://numeraty.com/blood-alcohol-calculator/) - [Body Surface Area Calculator](https://numeraty.com/body-surface-area-calculator/) - [One Rep Max Calculator](https://numeraty.com/one-rep-max-calculator/) ### Engineering (27 tools) - [Electrical Calculator](https://numeraty.com/electrical-calculator/) - [Electrical Wiring Calculator](https://numeraty.com/electrical-wiring-calculator/) - [Electronics Calculator](https://numeraty.com/electronics-calculator/) - [Mechanical Calculator](https://numeraty.com/mechanical-calculator/) - [Civil Engineering Calculator](https://numeraty.com/civil-engineering-calculator/) - [Aerospace Engineering Calculator](https://numeraty.com/aerospace-engineering-calculator/) - [Chemical Engineering Calculator](https://numeraty.com/chemical-engineering-calculator/) - [Computer Engineering Calculator](https://numeraty.com/computer-engineering-calculator/) - [Construction Calculator](https://numeraty.com/construction-calculator/) - [Concrete Calculator](https://numeraty.com/concrete-calculator/) - [Plumbing Calculator](https://numeraty.com/plumbing-calculator/) - [Physics Calculator](https://numeraty.com/physics-calculator/) - [Voltage Converter](https://numeraty.com/voltage-converter/) - [Electric Current Converter](https://numeraty.com/electric-current-converter/) - [Electric Resistance Converter](https://numeraty.com/electric-resistance-converter/) - [Magnetic Flux Converter](https://numeraty.com/magnetic-flux-converter/) - [Radiation Converter](https://numeraty.com/radiation-converter/) - [Sound Converter](https://numeraty.com/sound-converter/) - [Solar Panel Calculator](https://numeraty.com/solar-panel-calculator/) - [HVAC Calculator](https://numeraty.com/hvac-calculator/) - [Battery Life Calculator](https://numeraty.com/battery-life-calculator/) - [Wire Gauge Calculator](https://numeraty.com/wire-gauge-calculator/) - [LED Resistor Calculator](https://numeraty.com/led-resistor-calculator/) - [Beam Load Calculator](https://numeraty.com/beam-load-calculator/) - [Paint Calculator](https://numeraty.com/paint-calculator/) - [Flooring Calculator](https://numeraty.com/flooring-calculator/) - [Wallpaper Calculator](https://numeraty.com/wallpaper-calculator/) ### Math & Science (19 tools) - [Percentage Calculator](https://numeraty.com/percentage-calculator/) - [Fraction Calculator](https://numeraty.com/fraction-calculator/) - [Basic Calculator](https://numeraty.com/basic-calculator/) - [Scientific Calculator](https://numeraty.com/scientific-calculator/) - [Statistics Calculator](https://numeraty.com/statistics-calculator/) - [Square Root Calculator](https://numeraty.com/square-root-calculator/) - [Date Calculator](https://numeraty.com/date-calculator/) - [Age Calculator](https://numeraty.com/age-calculator/) - [Fuel Consumption Converter](https://numeraty.com/fuel-consumption-converter/) - [GPA Calculator](https://numeraty.com/gpa-calculator/) - [Grade Calculator](https://numeraty.com/grade-calculator/) - [Probability Calculator](https://numeraty.com/probability-calculator/) - [Ratio Calculator](https://numeraty.com/ratio-calculator/) - [Random Number Generator](https://numeraty.com/random-number-generator/) - [Binary Hex Decimal Converter](https://numeraty.com/binary-hex-decimal-converter/) - [Logarithm Calculator](https://numeraty.com/logarithm-calculator/) - [Mean Median Mode Calculator](https://numeraty.com/mean-median-mode-calculator/) - [Quadratic Formula Calculator](https://numeraty.com/quadratic-formula-calculator/) - [Matrix Calculator](https://numeraty.com/matrix-calculator/) ## Features - Real-time calculations with instant results - Shareable URLs that preserve calculator inputs - Amortization schedules for loan calculators - Mobile-responsive design on any device - No login or account required - Print-friendly output - Dark mode support - 225+ calculators and converters across 9 categories - 100% private - all calculations run in-browser ## Contact - [Website](https://numeraty.com) - Email: numeratyapp@gmail.com - [About](https://numeraty.com/about/) - [All Calculators](https://numeraty.com/calculators/) - [Methodology](https://numeraty.com/methodology/) - [Sitemap](https://numeraty.com/sitemap-index.xml)