All 129 tools

Mortgage Calculator Calculate monthly mortgage repayments, total interest and view a full amortisation schedule. Supports… UK Take-Home Pay Calculator Calculate your UK net salary after income tax, National Insurance and student loan deductions for the… United Kingdom Loan Calculator Calculate loan repayments, total interest cost and view a full amortisation schedule. Supports extra… VAT Calculator Add or remove VAT from any amount. Supports all EU and UK VAT rates with automatic country selection… United Kingdom Germany Turkey France Spain Italy Netherlands Portugal German Gross-to-Net Calculator Calculate German net salary from gross income. Includes income tax, solidarity surcharge, church tax… Germany Turkish Net Salary Calculator Calculate Turkish net salary from gross pay with 2025 income tax brackets, SGK premiums and stamp tax… Turkey Compound Interest Calculator Calculate how savings grow with compound interest. Add regular contributions, choose compounding… Currency Converter Convert between 30+ currencies using European Central Bank reference rates updated daily. Shows inverse… Investment Return Calculator Calculate your investment return, ROI percentage, and compound annual growth rate (CAGR). Compare… UK Stamp Duty Calculator Calculate Stamp Duty Land Tax for England and Northern Ireland. Covers first-time buyers, second homes… United Kingdom Turkish Severance Pay Calculator Calculate Turkish severance pay (kıdem tazminatı) based on gross salary, service length and the 2025… Turkey Savings Goal Calculator Work out how long it takes to reach a savings target, or how much to save each month. Factors in… Inflation Calculator Calculate how inflation erodes purchasing power or project future prices. Enter an amount, rate and… Credit Card Payoff Calculator Find out when you will pay off your credit card balance. Shows total interest cost and compares minimum… Inflation-Adjusted Return Calculator Convert nominal investment returns into real (inflation-adjusted) returns. See your true purchasing… Retirement Calculator Project your retirement fund growth and estimate whether your savings can sustain your target income… Simple Interest Calculator Calculate simple interest on a principal amount over a set period. Shows interest earned, total amount… Loan Comparison Compare two loan offers side by side. See monthly payments, total interest and total cost including…

Margin & Markup Calculator Convert between margin and markup, calculate selling price from cost or find the cost from a selling… Discount Calculator Calculate the discounted price, amount saved and final cost including VAT. Supports stacked discounts… Tip Calculator Calculate tip amount and total bill, then split evenly between diners. Supports custom tip percentages… Salary to Hourly Converter Convert annual salary to hourly rate or vice versa. Accounts for working weeks, hours per week and… Break-Even Calculator Find the break-even point in units and revenue. Enter fixed costs, unit price and variable cost to see… ROI Calculator Calculate return on investment as a percentage. Enter investment cost, return and holding period to see… Freelance Rate Calculator Calculate your ideal freelance hourly rate based on target income, business costs, billable hours and… Invoice Calculator Build invoice line items with quantities, unit prices, discounts and VAT. Shows subtotal, tax… CAGR Calculator Calculate the compound annual growth rate between a start and end value over a given period. Useful for…

BMI Calculator Calculate your Body Mass Index from height and weight. Shows BMI category, healthy weight range and… Calorie Calculator Estimate daily calorie needs using Mifflin-St Jeor or Harris-Benedict equations. Adjusts for activity… Pregnancy Due Date Calculator Estimate your due date from last menstrual period, conception date or ultrasound. Shows trimester… Water Intake Calculator Calculate your recommended daily water intake based on weight, activity level, and climate. Get a… Body Fat Calculator Estimate body fat percentage using the US Navy circumference method. Shows fat mass, lean mass and… Macro Calculator Calculate daily macronutrient targets in grams from a calorie goal. Choose from preset splits or set… Ideal Weight Calculator Find your ideal weight using Devine, Robinson, Miller and Hamwi formulas. Shows a healthy range based… Ovulation Calculator Estimate your fertile days and ovulation date from cycle length and last period. Shows multiple… Running Pace Calculator Calculate running pace per km or mile from distance and time. Shows split times, predicted race results… One Rep Max Calculator Estimate your one-rep max from a sub-maximal lift using Epley, Brzycki and other validated formulas… Heart Rate Zone Calculator Calculate heart rate training zones from age or max HR. Supports Karvonen (HRR) and percentage-of-max… Waist-to-Height Ratio Calculator Calculate your waist-to-height ratio to assess central obesity and health risk. A simple measure…

Percentage Calculator Calculate percentages in three modes: what is X% of Y, what percentage is X of Y, and find the total… Percentage Change Calculator Calculate percentage change between two values. Shows increase or decrease as a percentage with… Statistics Calculator Calculate mean, median, mode, standard deviation, variance and more from a dataset. Supports sample and… Random Number Generator Generate random integers within a range. Options for unique values, sorted output and multiple draws… Fraction Calculator Perform arithmetic on fractions with step-by-step working. Automatically simplifies to the lowest terms. Number Base Converter Convert numbers between binary, octal, decimal and hexadecimal bases. Supports custom bases from 2 to… Quadratic Equation Solver Solve quadratic equations (ax² + bx + c = 0) and find real or complex roots, vertex, axis of symmetry… Scientific Notation Converter Convert numbers between standard decimal, scientific notation, and engineering notation. Supports very… Ratio Calculator Simplify ratios, solve for missing values in proportions and distribute a total according to a given… Roman Numeral Converter Convert between Arabic numbers and Roman numerals in both directions. Validates Roman numeral syntax… Prime Factorisation Calculator Break any integer into its prime factors. Shows the factorisation tree, exponent form and all divisors… GCD & LCM Calculator Calculate the greatest common divisor and least common multiple of two or more numbers. Shows…

Temperature Converter Convert between Celsius, Fahrenheit, Kelvin and Rankine instantly. Shows the formula used and a… Length Converter Convert lengths between metres, feet, inches, miles, kilometres, yards and more. Instant results with… Weight Converter Convert weight and mass between kilograms, pounds, stones, ounces, grams and tonnes. Precise results… Data Storage Converter Convert between bits, bytes, KB, MB, GB, TB, PB and their binary equivalents (KiB, MiB, GiB). Clarifies… Speed Converter Convert speed between km/h, mph, m/s, ft/s, knots and Mach. Useful for travel, physics and aviation… Cooking Measurement Converter Convert between cups, tablespoons, teaspoons, millilitres, fluid ounces and litres. Uses US customary… Volume Converter Convert volumes between litres, millilitres, gallons (US/UK), cubic metres, cubic feet and more… Area Converter Convert area between square metres, square feet, acres, hectares, square kilometres and square miles… Time Unit Converter Convert time between seconds, minutes, hours, days, weeks, months and years. Useful for project… Fuel Economy Converter Convert fuel economy between miles per gallon (US/UK), litres per 100 km and km per litre. Compare… Pressure Converter Convert pressure between pascals, bar, psi, atmospheres, mmHg and torr. Covers engineering, weather and… Energy Converter Convert energy between joules, kilojoules, kilowatt-hours, calories, kilocalories, BTU and… Power Converter Convert power between watts, kilowatts, megawatts, horsepower (mechanical & metric), BTU/h and… Angle Converter Convert angles between degrees, radians, gradians, turns and arc-minutes/seconds. Essential for maths…

Age Calculator Calculate exact age in years, months and days from a birth date. Also shows total days lived, upcoming… Date Difference Calculator Calculate the exact number of days, weeks, months and years between any two dates. Optionally include… Time Zone Converter Convert a date and time between any two IANA time zones. Accounts for daylight saving transitions… Unix Timestamp Converter Convert Unix timestamps to human-readable dates and vice versa. Shows millisecond timestamps and ISO… Date Add/Subtract Calculator Add or subtract days, weeks, months and years from any date. Optionally count only business days… Working Days Calculator Count working days between two dates excluding weekends. Shows total hours and optionally accounts for… Time Duration Calculator Add multiple time entries to calculate total duration. Subtract breaks and apply an hourly rate for… Sleep Calculator Calculate the best times to wake up or go to sleep based on 90-minute sleep cycles. Avoids waking…

Word Counter Count words, characters, sentences, paragraphs and estimate reading time. Useful for SEO content… Case Converter Convert text between uppercase, lowercase, title case, sentence case, camelCase, snake_case and other… Lorem Ipsum Generator Generate lorem ipsum placeholder text in paragraphs, sentences or words. Optionally start with the… Slug Generator Convert any text into a URL-friendly slug. Removes special characters, transliterates Unicode and… Text Compare Compare two texts side by side and see additions, deletions and changes highlighted. Supports ignore… Sort & Deduplicate Lines Sort lines alphabetically or numerically, remove duplicates, trim whitespace and add line numbers… Markdown to HTML Converter Convert Markdown to clean, semantic HTML instantly. Supports GFM tables, code blocks, task lists, and… Find & Replace Text Find and replace text with support for regex, whole-word matching and case-insensitive search. Preview… Readability Checker Analyse text readability with Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog and Coleman-Liau… Remove Line Breaks Remove unwanted line breaks from copied text. Options to collapse spaces, strip HTML tags and fix…

JSON Formatter Format, validate and minify JSON. Options for indent size, key sorting and Unicode escaping. Instant… Base64 Encoder/Decoder Encode text or binary to Base64, or decode Base64 strings. Supports URL-safe mode, line breaks and data… Hash Generator Generate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes from any input. Compare hashes for integrity… URL Encoder/Decoder Encode or decode URLs and query strings using percent-encoding (RFC 3986). Handles full URLs and… Regex Tester Test regular expressions against sample text with real-time highlighting. Shows matches, capture groups… UUID Generator Generate UUIDs (v4 random, v7 time-ordered) in bulk. Options for uppercase, braces, no-hyphen formats… JWT Decoder Decode and inspect JSON Web Tokens (JWT) instantly. View header, payload claims, and expiration without… JSON ↔ CSV Converter Convert JSON arrays to CSV or CSV back to JSON. Handles nested objects with dot-notation flattening… Cron Expression Parser Parse and validate cron expressions with human-readable explanations. See the next 10 execution times… IP Subnet Calculator Calculate subnet details from an IP address and CIDR prefix. Shows network address, broadcast, host… DNS Lookup Look up DNS records for any domain. Query A, AAAA, MX, CNAME, TXT, NS and SOA records with TTL… HTTP Header Checker Fetch HTTP response headers from any public URL. Shows status code, content type, security headers and… HTML Entity Encoder/Decoder Encode special characters to HTML entities or decode entities back to characters. Choose between named… HTML/CSS/JS Minifier Minify HTML, CSS or JavaScript by removing comments, whitespace and unnecessary characters. Reduce file… .htaccess Redirect Generator Generate Apache .htaccess redirect rules, force HTTPS, set www preference and manage trailing slashes…

Meta Tag Generator Generate HTML meta tags for SEO, Open Graph and Twitter Cards. Preview how your page appears in search… Schema Markup Generator Generate JSON-LD structured data for articles, products, FAQs, local businesses and more. Valid… Open Graph Preview Preview how your URL appears when shared on Facebook, Twitter/X, LinkedIn, and messaging apps. Validate… Robots.txt Generator Generate a robots.txt file with allow/disallow rules, crawl-delay and AI bot blocking. Preset templates… UTM Link Builder Build campaign tracking URLs with UTM parameters for Google Analytics. Validates parameters and… Keyword Density Checker Analyse keyword density and frequency in your content. Shows single-word, two-word and three-word… SERP Snippet Preview Preview how your page appears in Google search results on desktop and mobile. Check title truncation… XML Sitemap Generator Generate a valid XML sitemap from a list of URLs. Set changefreq, priority and lastmod per URL or use… Hreflang Tag Generator Generate hreflang link tags for multilingual and multi-regional pages. Validates language-region codes…

Colour Converter Convert colours between HEX, RGB, HSL, HSV and CMYK formats. Shows a live preview swatch and… Contrast Checker Check colour contrast ratio against WCAG 2.1 accessibility standards. Shows AA and AAA compliance for… CSS Gradient Generator Create CSS linear or radial gradients visually. Adjust colours, stops and angle, then copy the… Aspect Ratio Calculator Calculate aspect ratios, find missing dimensions when scaling and match preset ratios (16:9, 4:3, 1:1)… PX to REM Converter Convert between px and rem CSS units with a customisable base font size. Includes a reference table for…

Password Generator Generate strong random passwords, passphrases or PINs. Customise length, character sets and word count… Password Strength Checker Check password strength with entropy calculation, time-to-crack estimate and common pattern detection… IBAN Validator Validate IBAN numbers using the official check-digit algorithm. Shows country, bank identifier and… United Kingdom Germany Turkey France Spain Italy Netherlands Portugal Turkish ID Number Validator Validate Turkish national ID numbers (TC Kimlik No) using the official checksum algorithm. Supports… Turkey Bcrypt Hash Generator Generate bcrypt, Argon2id or SHA-256 password hashes. Verify a password against an existing hash… Credit Card Validator Validate credit card numbers using the Luhn algorithm. Identifies the card network (Visa, Mastercard… Italian Codice Fiscale Validator Validate Italian fiscal codes (Codice Fiscale) using the official checksum algorithm. Extracts birth… Italy National ID Validator Validate national identification numbers for multiple countries using their official checksum… Spain Portugal Netherlands France Germany United Kingdom HMAC Generator Generate HMAC digests using a secret key and various hash algorithms. Verify existing HMACs for webhook… htpasswd Generator Generate htpasswd file entries for Apache basic authentication. Supports bcrypt, MD5 and SHA-1 hash…

GPA Calculator Calculate your GPA on a 4.0, 5.0 or 10-point scale. Enter grades and credit hours to get a weighted… Weighted Grade Calculator Calculate your overall course grade from weighted components like homework, midterms and finals. See… Final Exam Grade Calculator Calculate the score you need on your final exam to achieve a target course grade. Shows a scenario… Test Score Calculator Convert correct and wrong answers into a percentage score and letter grade. Supports penalty for wrong… Grade Conversion Calculator Convert grades between UK classification, US GPA, German Note, Turkish 100-point and ECTS scales… Turkish Exam Net Calculator Calculate your net score for Turkish university entrance exams (TYT/AYT). Applies the standard ¼ wrong… Turkey German Grade Average Calculator Calculate your German Notendurchschnitt (grade average) with optional credit weighting. Shows… Germany