EXPLORE RUZIBA TOOLS
All 137 tools
Find a calculator, planner or document tool by topic. Select a tool to open it right away.
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Home renovation calculators and project tools ↗Personal finance calculators ↗Travel planning tools ↗PDF and document tools ↗Student tools for grades and study planning ↗Business calculators and decision tools ↗Developer and security utilities ↗SEO and content preparation tools ↗Health and fitness calculators ↗Time and productivity tools ↗
Everyday & finance
18 toolsAge calculatorExact age and next birthday.Loan EMI & interestMonthly loan payments and compound growth.Currency converterDated reference exchange rates.BMI calculatorEstimate adult body mass index.Calorie calculatorEstimate daily energy needs for adults.Water intake trackerTrack drinks against a goal you choose.Pregnancy due date calculatorEstimate a due date from the last period.Tip calculatorSplit a bill and a tip.Savings goal calculatorEstimate monthly savings needed.Retirement calculatorExplore a retirement savings scenario.Percentage calculatorFind a percentage or change.Discount calculatorCalculate a sale price and savings.Emergency fund calculatorPlan a reserve from your essential monthly expenses.Debt payoff plannerEstimate payoff time and interest with a fixed payment.Credit utilization calculatorSee balances as a share of available credit.Pay raise impact calculatorCompare annual, monthly, and hourly pay before and after a raise.Hourly ↔ salary converterConvert pay in either direction with your own work schedule.Cost per use calculatorCompare a purchase price with how often you will use it.
Home & lifestyle
32 toolsMoving checklistPlan your move and print box labels.Paint quantity calculatorEstimate wall paint by area.Tile calculatorEstimate tiles including waste.Flooring calculatorEstimate coverage and boxes.Concrete calculatorEstimate slab volume.Gravel calculatorEstimate gravel volume and weight.Wallpaper calculatorEstimate rolls for a room.Electricity cost calculatorEstimate appliance electricity costs.Solar panel savings calculatorExplore an annual savings scenario.Room lighting calculatorEstimate target lumens.Furniture layout plannerArrange furniture on a room grid.Cleaning schedule generatorMake a reusable room schedule.Moving cost calculatorEstimate the cost of a move.Subscription cost trackerSee the annual total of your subscriptions.House closing cost calculatorEstimate buyer closing costs.Freelancer rate calculatorEstimate a break-even hourly rate.Rent increase calculatorSee the monthly and annual effect of a proposed rent change.Fence material calculatorEstimate panels, posts, and rails for a straight run.Roof area calculatorEstimate a simple roof area from footprint and pitch.Moving box estimatorEstimate boxes from rooms and packing density.Property tax estimatorApply a rate you enter to taxable value.Mortgage refinance calculatorCompare payments and estimate a simple fee break-even.Driveway material calculatorEstimate a driveway slab volume.Garden soil calculatorEstimate soil volume for a bed.Mulch calculatorEstimate mulch volume and bag count.Plant spacing calculatorEstimate plants on a regular grid.Rainwater harvest calculatorEstimate collection from a roof and rainfall.Appliance energy comparisonCompare annual kWh and running cost.Home maintenance schedulerKeep dated maintenance tasks on this device.Pantry expiration trackerTrack pantry items and their best-by dates locally.Fence cost calculatorEstimate material and labor costs for a fence run.Paint cost calculatorCombine the paint quantity estimate with your price.
Health & fitness
9 toolsSleep cycle plannerExplore approximate sleep and wake times.Running pace calculatorConvert distance and duration into pace and speed.One rep max estimatorEstimate a one-repetition weight from a lighter set.Adult BMI weight rangeConvert the adult healthy BMI category into a weight range.Heart rate zonesSee illustrative percentages of an estimated maximum heart rate.Waist-to-height ratioCalculate a measurement ratio without a diagnosis.Workout volume calculatorMultiply sets, repetitions, and weight lifted.Fasting time trackerSet a start time and duration to see an end time.Macro split calculatorSplit a calorie total by percentages you choose.
Time & productivity
12 toolsTime zone converterCompare times across cities.Meeting time finderCompare local hours across locations.Countdown timerCount down to a date and time.Date difference calculatorCount days between dates.Work hours calculatorTotal shifts and breaks.Shift schedule generatorGenerate a repeatable shift cycle.Pomodoro timerAlternate focus and break sessions.Weekly planner generatorPlan priorities for each day.Habit trackerTrack daily habits and streaks.Goal trackerTrack progress toward a target.Life in weeks visualizerSee elapsed and remaining weeks against a lifespan you choose.Reading time calculatorEstimate reading time from a pasted text.
Travel
9 toolsRoad trip fuel calculatorEstimate fuel needed and trip cost.Fuel cost splitterSplit a journey’s fuel cost among travelers.Hotel cost splitterShare a hotel bill across rooms and people.Travel budget calculatorAdd transport, lodging, food, and activities.Travel packing listBuild and save a packing checklist on this device.Airport arrival plannerWork backward from a flight departure time.Luggage weight converterConvert kilograms and pounds for baggage planning.Mileage reimbursement calculatorMultiply eligible distance by a rate you enter.Camping checklistPrepare and customize a camping packing list.
Business & decisions
15 toolsMeeting cost calculatorEstimate staff time spent in a meeting.Profit margin calculatorCompare revenue, costs, markup, and margin.Break-even calculatorFind units needed to cover fixed costs.ROI calculatorCompare gain with investment cost.Decision matrix builderScore options against criteria you weight.Invoice generatorBuild and print a basic invoice in your browser.Job offer comparisonCompare pay and benefits with your own assumptions.Commission calculatorEstimate commission on sales.Sales tax calculatorAdd or reverse a tax percentage you enter.Inventory reorder calculatorEstimate a reorder point from demand and lead time.Startup runway calculatorEstimate months of cash at a fixed net burn.Invoice due date calculatorAdd payment terms to an issue date.Meeting agenda builderWrite and print agenda items with durations.Employee cost calculatorEstimate annual base pay plus employer costs.Overtime pay calculatorCompare regular and overtime gross wages.
Student & education
8 toolsGPA & CGPA calculatorCalculate a credit-weighted grade average.Study plannerBuild a weekly study plan in this browser.Assignment trackerTrack coursework and due dates locally.Flashcard creatorCreate and practice question and answer cards.Reading speed testTime a passage and calculate words per minute.Course grade predictorEstimate the score needed on remaining work.Class attendance calculatorSee attendance and possible future absences.Presentation timerTime a talk and track remaining minutes.
SEO & content
10 toolsKeyword density checkerCount words and target phrase frequency.Meta tag generatorCreate title, description, and canonical HTML tags.Robots.txt generatorCreate simple crawl directives and a sitemap line.Sitemap XML generatorTurn a list of URLs into a basic XML sitemap.Open Graph previewPreview how a title, description, and image may appear.Word & character counterCount words, characters, sentences, and paragraphs.Readability checkerEstimate English reading ease from text.URL slug generatorConvert a title into a concise URL path segment.Hashtag generatorMake editable hashtags from relevant keywords.Blog, video & email title ideasGenerate editable blog titles, video titles, and email subjects.
PDF & documents
11 toolsQR code generatorCreate and download a QR code.Word, RTF & images to PDFConvert DOCX, RTF, ODT, text or images to PDF.Edit & merge PDFsReorder, rotate, merge, or remove PDF pages.Split PDFDownload selected PDF pages.Compress PDFReduce PDF size by rasterizing pages.PDF to imageExport PDF pages as PNG images.JPG to PNG converterConvert photos to PNG on your device.OCR text extractorExtract text from an image.Barcode generatorMake a downloadable CODE128 barcode.Electronic signature creatorDraw and download a signature image.QR scannerRead a QR code from an image.
Developer & security
12 toolsJSON validator & formatterValidate JSON, clean text, and escape HTML.Password generatorGenerate and check a password.Internet speed checkerCheck response time and download speed.JSON to CSV converterConvert an array of objects to CSV.Base64 encoder / decoderEncode or decode text in Base64.URL encoder / decoderEncode or decode URL components.Regex testerTest regular expressions against text.Hash generatorCalculate MD5 or SHA-256 digests.Color picker & converterConvert HEX, RGB, and HSL colors.UUID generatorGenerate random UUID version 4 values.SQL formatterFormat SQL for easier reading.UTM link builderCreate campaign links with encoded parameters.