🌌 All 111+ Tools
The complete directory — every calculator, converter, file tool, planner, and practice tool on MyStudyVerse, in one scrollable page.
🧮 Academic Calculators💰 Finance Calculators💪 Health Calculators💻 Coding Tools✍️ Writing Tools🎯 Productivity Tools🖼️ Image Tools📄 PDF Tools🎓 Learn & Practice➗ Mathematics🧪 Chemistry📖 Reference & Charts
🧮 Academic Calculators(34)
Category page →📈Percentage IncreaseThree modes with textbook working: % increase between numbers, apply a raise, or find the original before the hike.📉Percentage DecreaseDiscount maths with textbook working: % drop between numbers, apply a discount, or reveal the true original price.💯Marks PercentageSingle exam, full marksheet, or % → marks — with subject bars, CBSE grades, best/weakest analysis & PDF/Excel reports.🔄Percentage to GPAPercentage → 4.0 GPA done honestly: exact US band table, plus division-based estimates for Indian percentages.🎯Semester GPASGPA from letter grades & credits on 10-pt or 4-pt scales — with the biggest-lever tip, subject bars & PDF/Excel.🎓CGPACredit-weighted CGPA by semester or subject on 10-point & 4-point scales — chart, % conversion, target planner, PDF & Excel.🔮Grade PredictorSlide your expected performance and watch your predicted grade — with a full grade ladder of what each band still demands.🚀GPA Improvement PlannerThe exact per-semester GPA your CGPA target demands — trajectory chart, max-achievable ceiling & honest target board.✅Attendance PercentageAttendance % with a safe-to-skip count, recovery plan, end-of-term forecast, bunk planner & PDF/Excel reports.🏃Classes to AttendThe exact consecutive classes needed to recover any attendance target — with a climb chart, time estimate & skip penalty.😎Safe LeaveYour honest bunk budget: how many classes you can miss at any rule, a per-leave drop chart & weekly ration plan.⚠️Attendance Shortage PredictorPlay the term forward: end-of-term attendance for your real habit, the minimum habit to stay safe & scenario table.📝Internal MarksComponent-wise internal marks with real scaling (32/40 → 8/10), pending-component planning, build-up bar & PDF report.🏁Final MarksCombine internal & external at any ratio (30:70…) — or plan the exam score each target needs, with the min-external rule checked.⚖️Weighted MarksWeighted course score with pending-component planning — points banked, best/worst finals, target planner & PDF/Excel.📌Passing MarksCorrectly-rounded pass marks for any exam & rule — score check with margin, separate theory/practical passes & PDF card.⏳Exam Days RemainingLive multi-exam countdown (saved locally) with an 80/20 study-revision split, chapters-per-day pace & urgency colours.⏰Study Hours NeededFind how many study hours per day you need to finish your syllabus in time.📚Chapters Per DayFind how many chapters you need to cover per day before your exam.🗓️Revision PlannerGenerate a day-by-day revision schedule across all your subjects.🎂Age CalculatorExact age for any cut-off date — with birthday countdown, born-on weekday, zodiac, life milestones & totals down to seconds.📅Date CalculatorDays between dates with a weekday/weekend split, or add & subtract days/weeks/months/years — leap-year exact.⏱️Time CalculatorStack durations with per-row add/subtract, hours between clock times (overnight-aware) & unit conversion — base-60 done right.📐Unit Converter8 categories incl. Indian land units (acre/hectare/bigha), speed, data & time — with an all-units-at-once table & swap.🔬Scientific CalculatorA free online scientific calculator with trigonometric, log, and power functions.🎓CGPA to PercentageCBSE ×9.5, ×10, VTU or your own formula — exact percentage with band & division, full table & PDF conversion card.📊Percentage to CGPAExact percentage → CGPA under CBSE ÷9.5, ÷10, VTU or a custom rule — with reference table & PDF conversion card.🌎CGPA to US GPABand-based CGPA → US GPA estimate the way evaluators think — with the misleading linear formula debunked side-by-side.🇩🇪German GradeConvert any percentage, GPA, or CGPA to the German 1–6 grade with the official Bavarian formula — full working, band table & reverse mode.🇪🇺ECTS GradesPercentage → ECTS A–F with the official percentile definitions, typical mark bands & a full Europe-wide equivalence table.🇬🇧GCSE GradesThe 9–1 vs A*–G conversion table, strong vs standard pass explained & an illustrative mark → grade estimator.🇫🇷French Grade /20Convert notes /20 to percentage, mentions (Très bien → Passable) & honest US GPA equivalents — both directions.🏅CBSE Best of 5Best-of-five with the English-compulsory rule — see the dropped subject, your gain vs all subjects & a PDF report.🎯Marks NeededExact marks needed in your finals for any target — effort verdict, what-if slider, milestone board & PDF plan.
💰 Finance Calculators(14)
Category page →🏦EMI CalculatorCalculate your monthly EMI, total interest, and total payment for any loan.💳Loan CalculatorWork out monthly payments and total interest for a loan by tenure in months.🪙Simple InterestCalculate simple interest and total amount using P × R × T ÷ 100.📊Compound InterestSee how money grows with yearly, quarterly, or monthly compounding.💹SIP CalculatorEstimate the future value of monthly SIP investments and wealth gained.🏠Mortgage CalculatorMonthly mortgage payment, total interest & full amortization schedule — solve for payment, loan amount, term, or rate in any currency.🏡Home Loan CalculatorHome loan EMI/monthly payment, total interest & year-by-year schedule — plus what changing the tenure or rate really costs.🚗Car Loan CalculatorCar loan monthly payment, total interest & payoff schedule — compare terms and see what the car really costs in any currency.🧾GST CalculatorAdd GST to a price or extract the base price from a GST-inclusive amount.🏷️Discount CalculatorFind the final price and how much you save after a percentage discount.💰Profit / LossCalculate profit or loss amount and percentage from cost and selling price.⛽Fuel CostEstimate trip fuel cost from distance, mileage, and fuel price.💡Electricity BillEstimate appliance energy usage in units and its cost on your bill.💱Currency ConverterConvert between 30 world currencies using live daily exchange rates.
💪 Health Calculators(5)
Category page →🏋️BMI CalculatorCalculate your Body Mass Index and see which category you fall in.🍎Calorie CalculatorFind your daily calorie needs to maintain, lose, or gain weight.💧Water IntakePersonal daily hydration target from weight, exercise, climate & life stage — with an hourly sipping schedule and PDF plan.😴Sleep CalculatorCycle-based bedtimes & wake-up times graded for your age, with a night-map, nap optimizer, and PDF sleep plan.👟Pace CalculatorSolve pace, finish time, or distance — with 5K-to-marathon race predictions, even-pace splits, and a PDF race plan.
💻 Coding Tools(9)
Category page →🔧JSON FormatterBeautify, minify, and validate JSON with clear error messages.🔍Regex TesterTest regular expressions against text and see every match highlighted live.🔤Base64 Encode/DecodeEncode text to Base64 or decode Base64 back to plain text instantly.🔗URL Encode/DecodePercent-encode text for URLs or decode encoded URLs back to readable text.🆔UUID GeneratorGenerate random version-4 UUIDs, one or many at a time, ready to copy.🔑Password GeneratorRandom passwords, memorable passphrases & PINs — true crypto randomness, entropy meter, crack-time estimates, 100% offline.#️⃣Hash GeneratorGenerate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text.📄Lorem IpsumNatural-rhythm filler by paragraphs, sentences, or exact word count — with HTML <p> mode and one-click copy.🎨Color ConverterConvert colors between HEX, RGB, and HSL with a live preview swatch.
✍️ Writing Tools(5)
Category page →📝Word CounterLive word & character counts with reading time, readability score, keyword density, platform limits & word goals — 100% private.🔡Character CounterLive character counts vs 10 platform limits, letters/digits breakdown & a real SMS segment planner with encoding detection.🔠Case Converter14 conversions with proper headline Title Case & smart camelCase splitting — see every format at once, copy in one click.⏱️Reading TimeReading time at five research-based speeds + your own pace, a speech word-budget planner & common-lengths grid.📖Readability CheckerFive professional indices (Flesch, Fog, SMOG, Coleman-Liau, ARI) with a consensus grade & fixes generated from your text.
🎯 Productivity Tools(11)
Category page →🍅Pomodoro TimerApp-like focus timer: progress ring, auto-cycling with cycle dots, daily tomato scoreboard, tab-title countdown & task line.✅To-Do ListPriorities, due dates with overdue alerts, auto-sorting, filters, progress bar & double-click editing — private, in your browser.🃏FlashcardsStudy-to-mastery flashcards: missed cards repeat until you know them, bulk import from notes, keyboard-first & private.🔥Habit TrackerTappable 7-day grid per habit, current & best streaks, 30-day completion bars & a daily scoreboard — all saved locally.⏳Exam CountdownAdd your exams and see a live countdown of days left for each one.⏱️StopwatchCentisecond-precise stopwatch with laps, live current-lap readout & fastest ⚡/slowest 🐢 highlights.🗓️Timetable GeneratorColour-coded weekly grid with ⭐ double-slots for weak subjects, real session+break times, fairness counts & a branded PDF.📌Assignment TrackerTrack your assignments and due dates with overdue alerts, saved in your browser.📚Homework TrackerKeep every homework task and its deadline organised in one place.🎯Goal TrackerSet study goals and track your progress with a visual progress bar.📅Daily PlannerTime-blocked daily schedule with done-tracking, a live NOW marker, progress bar & one-tap reset for tomorrow.
🖼️ Image Tools(5)
Category page →🗜️Image CompressorShrink JPG and PNG images by quality or to an exact target size like 100 KB or 200 KB.📐Image ResizerResize images to exact pixel dimensions, with optional aspect-ratio lock.✂️Image CropperCrop images to any region with a draggable selection and preset aspect ratios.🔄Image ConverterConvert images between PNG, JPG, and WebP formats right in your browser.🔳QR Code GeneratorQR codes for links, Wi-Fi join, UPI payments, email, calls & SMS — custom colours, error correction, PNG + print-sharp SVG.
📄 PDF Tools(7)
Category page →🔗Merge PDFCombine several PDF files into one, in the order you choose.🗜️Compress PDFShrink scanned or image-heavy PDFs toward a target size, right in your browser.✂️Split PDFExtract a page range from a PDF into a new, smaller PDF file.🔄Rotate PDFRotate all pages of a PDF by 90, 180, or 270 degrees and download.🗑️Delete PDF PagesRemove specific pages from a PDF and save the rest as a new file.🖼️Image to PDFTurn one or more JPG or PNG images into a single PDF document.📸PDF to JPGConvert each page of a PDF into a downloadable JPG image.
🎓 Learn & Practice(9)
Category page →⚛️Periodic TableExplore all 118 elements — click any element for its symbol, mass, and category.⌨️Typing PracticeTest your typing speed (WPM) and accuracy with live feedback and practice passages.➗Math PracticeEndless timed arithmetic and aptitude drills with instant checking and scoring.❓Quiz MakerExam-style MCQ practice: bulk import, shuffled questions & options, instant feedback, best-score tracking & miss review.✉️Letter GeneratorFill in the blanks to instantly generate formatted leave, complaint, and application letters.✖️Times TablesLearn and drill times tables 2–20: study mode, timed quizzes, per-table mastery tracking.🔤Spelling PracticeHear a word spoken aloud, type the spelling, get instant checking — commonly misspelled words at three levels.📖Vocabulary BuilderLearn 240 high-value English words with meanings and examples, then test yourself with instant MCQ quizzes.🌍Capitals QuizLearn every country's capital by region, then race a timed quiz — flags, capitals, and mastery tracking.
➗ Mathematics(4)
Category page →📊StatisticsPaste any data (even from Excel) → full panel: mean/median/mode, sample & population SD, quartiles, outliers, histogram, box plot & PDF.🧮Equation SolverLinear, quadratic & 2×2 systems with textbook steps — discriminant, vertex, factored form, parabola graph & Vieta checks.🔢Prime CheckerPrime verdict with the proof shown — factorization tiles, all divisors, prime neighbourhood & twin-prime detection.🎲ProbabilitySingle events, and/or, at-least-once & nCr/nPr — with dice/coin/card presets, odds, fractions & textbook steps.
🧪 Chemistry(4)
Category page →⚗️Molar MassAny formula incl. hydrates (CuSO4·5H2O) & nested brackets — element-by-element working, % composition & presets.🧫Mole CalculatorStart from mass, moles, particles, or gas volume — get all four with steps shown; formula-aware molar mass built in.🧪pH CalculatorStart from pH, pOH, [H⁺] or [OH⁻] — get the full panel with log steps, a Kw check & an interactive scale of 14 household substances.⚖️Equation BalancerSmallest whole-number coefficients instantly — with subscript rendering, an atom-count proof table & classic presets.
📖 Reference & Charts(4)
Category page →🔬Physics FormulasA handy revision sheet of key physics formulas — motion, forces, energy, electricity, and more.📐Maths FormulasEssential maths formulas — algebra, sequences, areas, volumes, trigonometry, and calculus.📏SI UnitsThe seven SI base units, common derived units, and metric prefixes in one reference table.🔭ConstantsKey scientific constants — speed of light, gravitational constant, Avogadro's number, and more.