VAT CalculatorGuidesHow to Calculate VATFormulas for adding VAT to a net price and extracting it from a gross price, worked examples and the most common mistake.→Percentage CalculatorGuidesHow to Calculate PercentagesFinding a percentage of a number, percentage change, successive discounts and the difference between percent and percentage points.→Loan CalculatorGuidesHow to Calculate Loan PaymentsThe equal-instalment loan formula, how term and rate change total cost, and what to check before you borrow.→BMI CalculatorGuidesHow to Calculate and Interpret BMI (Body Mass Index)The BMI formula, WHO categories, its limitations and when to talk to a doctor.→Password GeneratorGuidesHow to Create a Strong Password and Keep Your Accounts SafeWhy length beats complexity, how password managers work and why two-factor authentication matters.→Image Compressor and ResizerGuidesHow to Reduce Image File Size Without Visible Quality LossResolution, format and quality settings that shrink photos for email and websites.→Image ConverterGuidesPNG vs JPG vs WebPLossy versus lossless compression, transparency support and how to choose the right image format.→QR Code GeneratorGuidesWhat Is a QR Code and How to Create and Use One SafelyHow QR codes work, the right size and contrast, a pre-print checklist and safety tips.→JSON FormatterGuidesWhat Is JSONThe rules of the JSON format, typical syntax mistakes and how to make JSON readable.→PDF MergerGuidesHow to Merge PDF Files Safely Without Uploading ThemCombine several PDFs into one document: ordering, file size and privacy tips.→Deposit Interest CalculatorGuidesHow Is Deposit Interest CalculatedTerm deposit returns, tax withholding, simple and compound interest and how monthly savings grow, with worked examples.→Severance Pay Calculator (Turkey)GuidesHow Is Severance Pay (Kıdem Tazminatı) Calculated in TurkeyWho is entitled to severance pay in Turkey, which pay counts, what the ceiling is and how to find the net amount.→Fuel Cost CalculatorGuidesHow to Calculate Fuel Cost for a TripWork out trip fuel cost from distance, consumption and price per litre, measure real consumption and split the bill.→Hijri Date ConverterGuidesWhat Is the Hijri CalendarHow the Hijri calendar works, its months, how it differs from the Gregorian calendar and how to convert between them.→Zodiac Sign CalculatorGuidesHow Zodiac Signs Are CalculatedDate ranges of the 12 signs, their elements, what to do on cusp dates and how the Chinese zodiac animal is found.→Time Zone ConverterGuidesHow to Calculate Time Zone Differences for MeetingsUTC, time zones, daylight saving and practical ways to plan meetings across countries.→Discount CalculatorGuidesHow to Calculate Discounts and Stacked OffersThe sale price formula, the real effect of “20% + 10%” offers and how to find a discount percentage.→Grade Average CalculatorGuidesHow to Calculate Your Midterm and Final AverageCourse average from midterm and final weights, the final grade you need to pass and a credit-weighted term average.→Age CalculatorGuidesHow to Calculate Age From a Birth DateCalendar age, leap years and working out your age on a specific date.→Date Difference CalculatorGuidesHow to Calculate the Days Between Two DatesFind days, weeks and months between two dates, business days and common pitfalls.→Currency ConverterGuidesHow to Read Exchange RatesWhat an exchange rate is, why buy and sell prices differ, how cross rates work and why converters differ from your bank.→Word CounterGuidesWhat a Word and Character Counter Is ForCounting words, characters and sentences, social media and SEO limits and how reading time is estimated.→