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Estimate pre-tax rental property cash flow, gross yield, net yield, cash-on-cash return and break-even rent.

Project rental cash flow, loan balance, property value, equity and return over a holding period using visible assumptions and downside checks.

Estimate how long it may take to recover property investment cash through surplus cash flow or refinance assumptions.

Estimate whether a renovation could improve rental cash flow, rent, value, equity and cash left in the deal.

Estimate monthly mortgage or home-loan payments from property price, deposit, interest rate, loan term, repayment type, taxes, insurance and fees.

Estimate a mortgage amortization schedule with principal, interest, remaining balance, total interest and payoff date.

Compare a current mortgage with a possible new loan using payment change, refinance costs, break-even months and interest difference.

Compare renting and buying over a selected holding period using rent, mortgage, ownership costs, transaction costs, property growth and opportunity cost.

Estimate an affordable property price from income, deposit or down payment, monthly debts, mortgage assumptions and recurring housing costs.

Estimate front-end and back-end debt-to-income ratios from income, housing costs and monthly debt payments.

Estimate deposit or down payment amount, loan amount, loan-to-value, purchase costs and savings gap for a home purchase.

Compare two mortgage scenarios by payment, interest, fees, remaining balance and estimated total cost over time.

Estimate how extra monthly or one-off mortgage payments could change payoff time, total interest and payoff date.

Estimate house flip or fix-and-flip profit, ROI, total project cost and break-even sale price from purchase, renovation, financing, holding and selling costs.

Estimate a BRRRR property scenario with purchase, rehab, ARV, rent, refinance LTV, costs, cash left in the deal, DSCR and monthly cash flow.

Estimate rental yield, gross yield, net yield, capitalization rate, net operating income and simple rental cash flow from price, rent and expenses.

Estimate the gross monthly rent needed to cover mortgage payments, vacancy, property management and monthly rental property expenses.

Estimate monthly, weekly and total property holding costs during renovation, vacancy, delayed sale or settlement.

Estimate renovation ROI, net value uplift, break-even value increase and total project cost from cost and value-uplift assumptions.

Estimate rent needed to reach a target cash flow, DSCR, gross yield or cash-on-cash return from rental assumptions.

Reverse-calculate an estimated property offer price from target cash flow, DSCR, cap rate or cash-on-cash return assumptions.

Estimate short-term rental revenue, platform fees, expenses, NOI, cash flow and break-even occupancy from your nightly rate, occupancy and cost assumptions.

Estimate balance transfer savings, transfer fees, promo interest, remaining balance and payoff time from credit card assumptions.

Add income and expenses to estimate monthly surplus or shortfall, savings rate and category breakdown without connecting accounts.

Add assets and liabilities to estimate net worth, total assets, total liabilities and grouped category totals.

Estimate future retirement savings, inflation-adjusted value, personal contributions, employer contributions and estimated growth.

Estimate fixed-term annuity-style payments from a lump sum using interest rate, term, payment frequency, timing and optional residual value.

Estimate the present value of a fixed stream of future payments using a discount rate, payment frequency and annuity timing.

Estimate how regular contributions may grow over time using a simple interest-rate assumption, frequency and timing.

Compare beginning-of-period and end-of-period payment timing for simplified annuity present value or future value estimates.

Split take-home income into needs, wants and savings or debt-payment buckets using 50/30/20 or custom percentages.

Compare current essentials, wants/fun and savings/investing buckets against 50/30/20, 65/20/15 or a custom budget rule.

Convert annual salary to an estimated hourly rate, monthly pay, weekly pay and fortnightly pay.

Convert hourly pay to estimated annual salary, monthly pay, weekly pay and fortnightly pay.

Estimate annual total compensation from base salary, bonus, equity or RSUs, employer match, benefits and other compensation assumptions.

Estimate how an entered inflation rate may affect the future equivalent of today's amount or future purchasing power.

Estimate monthly or regular contributions needed for one or more planned expenses, annual bills or irregular costs.

Estimate credit card payoff time, total interest and the effect of optional extra monthly or one-off payments.

Estimate an emergency savings target, current shortfall and time to target from essential expenses and monthly savings.

Estimate how long it may take to reach a savings goal, or the monthly contribution needed by a target date, with optional APY.

Estimate compound growth, ending balance, total contributions and interest earned from a starting amount, recurring contributions, return and years.

Estimate a smallest-balance-first debt payoff schedule from balances, APRs, minimum payments and an extra monthly payment.

Estimate a highest-APR-first debt payoff schedule from balances, APRs, minimum payments and an extra monthly payment.

Estimate payoff time, total interest and interest saved for a generic loan with optional extra payments.

Estimate student loan payoff time, total interest, time saved and interest saved with standard amortising payoff math and optional extra payments.

Compare a current personal loan with a refinance option using balance, APR, term, payment and fees.

Calculate calendar days between two dates, with optional end-date inclusion and practical week or calendar breakdowns.

Add or subtract days, weeks, months and years from a start date with clear month-end handling.

Count business days between two dates while excluding selected weekend days and custom holidays or dates.

Calculate age from a birth date to today or another selected date, with years, months, days and total days.

Calculate elapsed time between two times or datetimes, including overnight spans, hours, minutes and decimal hours.

Total daily and weekly time card hours from shift start times, end times and break durations.

Estimate total work hours over a date range from selected workdays, hours per day, breaks and manual excluded dates.

Estimate regular pay, overtime pay and gross pay from entered hours, hourly rate and overtime multiplier.

Convert a selected date and time from one IANA time zone to another with daylight saving handled by browser timezone data.

Enter one proposed meeting time and compare the local time across multiple IANA time zones.

Calculate the time remaining until a target date and time, or show how long ago a past target passed.

Convert pasted or uploaded CSV to JSON in your browser with header, delimiter and trimming options.

Convert pasted or uploaded JSON arrays to CSV in your browser with clear errors, header handling and local downloads.

Resize JPG, PNG, WebP and animated GIF images in your browser with width, height, aspect-ratio and output-format controls.

Compress JPG, PNG and WebP images in your browser with quality, optional max dimensions and download controls.

Convert JPG, PNG and WebP images in your browser with output format, quality and transparency controls.

Convert one PNG image to a JPG download in your browser with quality and background color controls for transparency.

Convert one JPG or JPEG image to a PNG download in your browser with clear file size and quality notes.

Convert JPG, PNG or WebP images to WebP in your browser with quality, transparency and browser support notes.

Create one PDF from JPG, PNG or browser-supported WebP images with page size, order, margin and download controls.

Try to reduce one PDF file size in your browser with honest size comparison and no required server upload.

Merge multiple PDF files into one browser-generated download with clear size guidance and no required server upload.

Extract selected pages or split one PDF into page groups in your browser with clear validation and local download controls.

Count words, characters, sentences, paragraphs and estimated reading time from pasted text.

Count characters with spaces, characters without spaces, words and lines from pasted text.

Estimate reading time from pasted text and a words-per-minute setting.

Estimate speech or presentation time from pasted text and a speaking-speed setting.

Convert pasted titles and headings into practical title case, sentence case, uppercase or lowercase.

Convert text to uppercase, lowercase, sentence case, title case, camelCase, PascalCase, kebab-case or snake_case.

Sort pasted lines alphabetically A-Z or Z-A with options to ignore case, trim whitespace and remove blank lines.

Remove duplicate lines from pasted text while keeping the first occurrence.

Count total lines, non-empty lines and blank lines in pasted text.

Clean pasted text by trimming whitespace, removing extra spaces, removing blank lines and normalising line breaks.

Use a simple online calculator for everyday addition, subtraction, multiplication, division, percentages and quick arithmetic.

Use a safe scientific calculator for arithmetic, percentages, square roots, powers, logarithms, trigonometry, degrees and radians.

Plot simple functions such as y = x^2, y = sin(x) and y = 2x + 3 on a clean x-y grid.

Calculate what X percent of Y is, what percent one number is of another, or the whole amount from a percentage.

Compare a starting value and ending value to estimate percentage increase or decrease and the absolute difference.

Add, subtract, multiply, divide and simplify fractions, with decimal and mixed-number results.

Simplify ratios, find equivalent ratios and scale ratio values from clear user-entered numbers.

Convert common length, weight, temperature, area, volume, speed and time units with a focused measurement converter.

Estimate tip amount, total with tip, tip per person and total per person from a bill amount and tip percentage.

Calculate average, count, sum, median, minimum and maximum from numbers separated by commas, spaces or new lines.

Round a number to selected decimal places using nearest, up or down rounding modes.

Generate one or more random integers or decimals within a selected range, with optional duplicate control.

Calculate mean, variance, sample standard deviation and population standard deviation from a pasted list of numbers.

Calculate the square root of a non-negative number and see a squared check of the result.

Raise a base number to a power, including common positive, negative and fractional exponents when the result is safe to show.

Find a missing side of a right triangle using a² + b² = c².

Calculate area, perimeter and angles from three side lengths using Heron's formula and the law of cosines.

Estimate the real monthly cost of a car, including the loan payment, insurance, fuel, maintenance, income, and budget.

Estimate a monthly auto loan payment from vehicle price, down payment, trade-in value, sales tax, fees, APR, and loan term.

Estimate auto loan payoff time, interest saved and months saved with extra monthly or one-off payments.

Compare a current car loan with a refinance scenario using balance, rates, terms, fees, payment change, interest and break-even assumptions.

Estimate total monthly and annual car ownership cost including payment, insurance, fuel or charging, maintenance, fees and depreciation.

Estimate monthly and annual EV charging cost from driving distance, efficiency, electricity price and home/public charging mix.

Estimate fuel cost for a trip, month or year from distance, fuel efficiency and fuel price.

Estimate future vehicle value, total depreciation and yearly value loss from user-entered depreciation assumptions.

Compare gas, petrol and electric vehicle running costs using distance, fuel efficiency, EV efficiency, electricity prices, charging mix and fuel price assumptions.

Compare a car lease quote with a standard loan purchase scenario using payments, upfront costs, mileage and resale assumptions.

Estimate car loan payments with a final balloon or residual payment, and compare with a standard fully amortising loan.

Estimate adult body mass index from height and weight with metric or US units and cautious category context.

Estimate adult body fat percentage from height, neck, waist and hip measurements using a specified circumference formula.

Estimate adult basal metabolic rate from age, equation constant, height and weight using the Mifflin-St Jeor equation.

Estimate adult daily maintenance calories from BMR and an activity factor, with an optional user-entered adjustment.

Convert a calorie target and macro split into estimated grams of carbohydrate, protein and fat.

Calculate pace per mile, pace per kilometer and average speed from distance and time.

Estimate adult heart-rate training zones from age, optional resting heart rate and optional known maximum heart rate.

Estimate a rough daily drinking-water amount from body weight, activity level and climate assumptions.

Estimate one-rep max from a weight lifted and reps completed using a common formula and non-prescriptive percentage table.

Calculate waist-to-height ratio from waist and height measurements with metric or US units and cautious adult reference context.

Estimate paint needed from wall area, coats, coverage, doors, windows and waste allowance in gallons or litres.

Estimate flooring area, waste allowance, boxes needed and rough material cost in square feet or square metres.

Estimate tiles needed from area, tile size, waste allowance, box quantity and optional material cost.

Estimate concrete volume for a simple slab in cubic yards or cubic metres, with optional bag count from bag yield.

Estimate deck area, decking boards, waste allowance and rough material cost from deck size and board dimensions.

Build a rough renovation budget from cost categories, quotes, contingency and expected overruns.

Estimate a rough moving cost range from home size, distance, movers, truck, packing, storage, fuel and extra fees.

Estimate a rough storage unit size range from rooms, boxes, furniture and bulky items.

Estimate roof area from footprint, pitch factor, waste allowance and optional bundle or sheet coverage.

Estimate fence posts, panels or boards, gates, total length and rough material cost from fence length and spacing.

Split study hours or topic estimates across available days and study sessions.

Split assignment work hours or task estimates across available days before a due date.

Estimate word count, sentence count, average sentence length and Flesch-style readability from pasted text.

Calculate remaining words and words per writing day or session before a deadline.

Estimate counted words, excluded words and remaining words when citations or notes may not count toward a target.

Convert points earned out of total points into a grade percentage with a simple explanation.

Convert questions correct and total questions into a percentage score, incorrect count and optional letter grade.

Enter assignment or category scores and weights to estimate a weighted grade and see whether weights total 100%.

Enter your current grade, desired grade and final exam weight to estimate the score needed on the final.

Enter classes, grades and credits to estimate GPA on a common 4.0 scale or your own grade-point assumptions.

Format, validate and minify standard JSON in your browser with 2-space or 4-space indentation and copyable output.

Encode URL components or decode percent-encoded text in your browser, with optional plus-space handling.

Encode text to Base64 or decode Base64 back to UTF-8 text in your browser with clear invalid-input messages.

Convert Unix timestamps to local and UTC date/time, or convert browser-local date/time values back to seconds and milliseconds.

Generate one or many UUID v4 identifiers in your browser using Web Crypto, then copy one value or the full list.

Generate a static QR code from text or a URL in your browser, then download PNG or SVG output.

Generate random passwords in your browser with length, character group and ambiguous-character options.

Convert opaque HEX, RGB and HSL colour values in your browser with validation, copy buttons and a preview.

Test JavaScript regular expressions against sample text in your browser with flags, match output and clear errors.

Create a Markdown table from rows, columns or simple pasted CSV-like text in your browser, then copy the output.

Analyze pasted redirect chains, HTTP headers, redirect-rule examples and sitemap URLs in your browser without making live URL requests.

Make words from letters for anagrams, word games, crosswords and puzzles, with optional wildcard support and results grouped by length.

Find Scrabble-style word ideas from rack letters, blank tiles and simple filters, with estimated tile scores and clear dictionary limits.

Find Words With Friends-style word ideas from rack letters, blank tiles and simple filters, with scoring and dictionary limits stated clearly.

Find exact anagrams or shorter words from a set of letters or a short phrase using a general English word list.

Find words by starts-with, ends-with, contains, length and available-letter filters.

Find five-letter words by starting letters, ending letters, contained letters, excluded letters and optional pattern clues.

Filter possible five-letter words from green, yellow, grey and wrong-position clues without claiming today's answer.

Find words that match a crossword-style letter pattern such as c?t or ??ing from a general English word list.

Generate random words by quantity and optional word length from a simple browser-based English word list.