Other Online Tools — Free Calculators & Generators
GPA, grade, password generator, word counter, Roman numerals, and more. Handy everyday tools: grade and GPA calculators, generators, counters, and format translators.
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GPA Calculator
Free GPA calculator. Add your courses, grades, and credit hours to instantly compute your semester or cumulative grade point average.
OpenGrade Calculator
Free grade calculator. Enter your assignments, weights, and scores to find your current grade and what you need on the final exam.
OpenRandom Number Generator
Free random number generator. Generate one or many random numbers within any range, with optional uniqueness and decimal support.
OpenPassword Generator
Free secure password generator. Create strong random passwords with adjustable length and character sets. Works offline in your browser.
OpenWord Counter
Free word counter. Paste any text to instantly count words, characters, sentences, paragraphs, and estimated reading time.
OpenReading Time Calculator
Free reading time calculator. Estimate how long it takes to read any text or word count, with adjustable reading speed.
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Number to Words Converter
Free number to words converter. Convert any number up to billions into English words instantly — perfect for checks, invoices, and documents.
OpenHex to Decimal Converter
Free hex to decimal converter. Convert between hexadecimal, decimal, binary, and octal number systems instantly, with base prefixes explained.
OpenRoman Numeral Converter
Free Roman numeral converter. Convert numbers to Roman numerals and back, following the standard subtractive rules like IV and IX.
OpenProbability Calculator
Free probability calculator for single, multiple, and conditional events. Find the chance of independent and dependent outcomes quickly.
OpenAbout Other Tools
The everyday tools don't fit a single category, so we grouped them here: 10 free calculators and generators for school, work, and convenience. Compute GPAs and class grades, roll random numbers, build strong passwords, count words, estimate reading time, spell numbers out, convert hex to decimal, translate Roman numerals, and figure probabilities.
The password generator produces cryptographically reasonable output entirely on your device — nothing is transmitted, so generated passwords are never seen by a server. The word counter and reading-time tools are favorites for writers and editors who need quick, reliable metrics without installing software.
Like every tool on All Calculator, these are free, require no sign-up, and run instantly in your browser. Bookmark the ones you use and keep them one tab away.