%d calculators, all free, no signup
All calculators on FreePercentCalc
Every tool the site offers, grouped by what you're actually trying to do. Calculators run in your browser — nothing you type leaves the device.
Core percentage calculators5
The everyday math the rest of the site is built around.
- Percentage of a numberWhat is X% of Y? Single-step calculation.
- What percent is X of YReverse percentage: figure out what proportion one number is of another.
- Percentage changeFrom an old value to a new value — gain or loss, expressed as a percent.
- Reverse percentage (find original)If X% of a number is Y, what was the original?
- Fraction ↔ decimal ↔ percentThree-way live converter.
Shopping & consumer math5
Tip splits, discounts, sales tax, multi-layered coupons.
- Tip calculatorBill, tip percentage, number of people, share strings.
- Discount calculatorOriginal price, discount percent, money saved, final price.
- VAT calculator (generic)Add or remove value-added tax at any rate.
- Country-specific VAT & sales tax14 jurisdictions — UK, Germany, France, Italy, Spain, NL, Poland, Sweden, California, Texas, NY, Florida, Illinois, Washington.
- Stacked discount mathLayered "20% off plus extra 15%" calculator with the right multiplication.
Finance & investment6
Loans, compound interest, returns, retirement.
- Compound interestPrincipal, rate, time, compounding period. Final value plus interest breakdown.
- Loan / EMIMonthly payment, total interest, amortization chart.
- Simple interestI = P × r × t. The math behind short-term loans and basic deposit accounts.
- ROI (return on investment)Profit divided by cost, expressed as a percent.
- Profit marginMargin vs markup — the two are easy to confuse and produce different numbers.
- Inflation calculatorWhat is $100 from 1990 worth today? Historical CPI for US, UK and Eurozone.
Income & tax3
Wage conversion, progressive tax brackets, country-specific tax math.
- Salary / hourly wageConvert any wage to hourly, weekly, monthly or annual instantly. Custom work-week supported.
- Income tax bracketsProgressive tax calculator for US, UK, Germany, France and Canada. Marginal and effective rate.
- VAT / sales tax by country22 jurisdictions — UK, Germany, France, Italy, Spain, NL, Poland, Sweden, Ukraine, Turkey, Bulgaria, Portugal, plus Canada, Australia, India, Japan and 6 US states.
Shopping discount pages with calculators15
Product-specific landing pages — each has its own discount widget seeded with real 2026 prices.
- iPhone discountiPhone 16, 16 Plus, 16 Pro and 16 Pro Max with trade-in math.
- TV discountOLED, QLED, mini-LED with the holiday pricing calendar.
- Laptop discountMacBook, Dell XPS, ThinkPad, gaming laptop pricing.
- Gaming console discountPS5 Pro, Xbox Series X, Switch 2 with bundle math.
- Headphones & AirPodsAirPods Pro 2, Sony WH-1000XM6, Bose QC Ultra.
- Car purchase mathDealer discount, trade-in, manufacturer rebate, financing.
- Kitchen appliancesRefrigerator, dishwasher, range, washer with the 4-weekend sale calendar.
- Fitness equipmentPeloton, NordicTrack, Hydrow with subscription math.
- Personal careDyson Airwrap, Braun, Oral-B, Theragun.
- Jewelry & watchesEngagement rings, designer watches and the holiday jewellery sale calendar.
- Furniture & home decorIKEA, West Elm, Crate & Barrel — sofa, dining set and delivery math.
- Baby & kids gearStroller, car seat and crib pricing with the seasonal sale windows.
- Clothing & apparelLevi's, Lululemon, Patagonia, Theory.
- Cosmetics & makeupSephora, Ulta, La Mer, Pat McGrath, perfume math.
- Subscription servicesStreaming, software, memberships, the annual audit.
Utility & reference4
Things that aren't single-formula calculators but live in the same toolbox.
- Bulk CSV percentageUpload a CSV, apply a percent calc to every row, download.
- Percentage cheat sheetQuick-reference card: common percentages, key formulas, mental-math shortcuts.
- Interactive lessons15-lesson curriculum from basics to compound interest and ROI.
- Calculator historyBrowser-local history of every calculation, exportable to CSV.