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90 toolsAge Calculator
Calculate an exact calendar age, total days, and time to the next birthday.
Open calculatorBMI Calculator
Calculate adult body mass index in metric or US customary units.
Open calculatorBreak-Even Calculator
Find the sales volume needed to cover fixed costs or reach a target operating profit.
Open calculatorCAGR Calculator
Find the annualized growth rate between a starting and ending value.
Open calculatorCalorie Calculator
Estimate adult resting energy and daily calorie needs from activity level.
Open calculatorCircle Calculator
Calculate a circle’s radius, diameter, circumference, and area from one known measurement.
Open calculatorCompound Interest Calculator
See how an initial deposit and regular savings could grow over time.
Open calculatorConcrete Calculator
Estimate concrete volume and bag quantities for a rectangular slab.
Open calculatorData Storage Converter
Convert bits and bytes using clearly separated decimal and binary storage prefixes.
Open calculatorDate Difference Calculator
Count calendar time, total days, weeks, and weekdays between two dates.
Open calculatorDebt-to-Income Calculator
Compare monthly debt payments with gross income before and after an additional loan payment.
Open calculatorDiscount Calculator
Find sale price, savings, tax, and effective price reduction.
Open calculatorEffective Annual Rate Calculator
Convert between nominal and effective annual rates for a selected compounding frequency.
Open calculatorEMI Calculator
Calculate an equated monthly installment and reducing-balance loan cost.
Open calculatorFixed Deposit Calculator
Estimate deposit maturity with reinvested interest or calculate simple interest payouts.
Open calculatorFraction Calculator
Add, subtract, multiply, or divide two fractions and reduce the result.
Open calculatorGCD and LCM Calculator
Find the greatest common divisor and least common multiple of two whole numbers.
Open calculatorGPA Calculator
Estimate a credit-weighted GPA on a common 4.0 plus/minus scale.
Open calculatorGrade Calculator
Calculate a course grade from points or weighted categories.
Open calculatorGST Calculator
Add GST to a base amount or extract it from a tax-inclusive price.
Open calculatorInflation Calculator
Estimate future costs and purchasing power using an annual inflation assumption.
Open calculatorInvestment Fee Calculator
Compare how two annual fee rates affect the same investment over time.
Open calculatorInvestment Growth Calculator
Model annual contributions, returns, and inflation-adjusted value.
Open calculatorLength Converter
Convert distances between metric, international customary, and nautical units.
Open calculatorLoan Affordability Calculator
Calculate the loan amount supported by a monthly payment budget, rate, and term.
Open calculatorLoan Calculator
Estimate fixed loan payments, total interest, and the effect of extra payments.
Open calculatorLoan Comparison Calculator
Compare two fixed-rate loan offers by monthly payment and total interest plus upfront fees.
Open calculatorLumpsum Investment Calculator
Project one investment with no later contributions.
Open calculatorMean, Median & Mode Calculator
Calculate common measures of center and range for a list of numbers.
Open calculatorMortgage Calculator
Estimate principal, interest, taxes, insurance, HOA fees, and total housing payment.
Open calculatorPaint Calculator
Estimate wall paint from room dimensions, openings, coats, and product coverage.
Open calculatorPercentage Calculator
Find a percentage, compare two numbers, or calculate a change.
Open calculatorPercentage Difference Calculator
Compare two nonnegative values using their average as the percentage base.
Open calculatorPermutation and Combination Calculator
Count ordered arrangements and unordered selections of distinct items without replacement.
Open calculatorProbability Calculator
Calculate single-event or binomial probabilities, complements, and expected successes.
Open calculatorProfit Margin Calculator
Calculate profit, margin, markup, and cost share.
Open calculatorPythagorean Theorem Calculator
Find a missing right-triangle side and calculate its area, perimeter, and acute angles.
Open calculatorQuadratic Equation Calculator
Solve real-coefficient quadratic equations, including complex roots and linear cases.
Open calculatorRatio Calculator
Simplify a two-part ratio and divide a total into proportional shares.
Open calculatorRecurring Deposit Calculator
Estimate maturity for monthly deposits using a quarterly-compounded annual rate.
Open calculatorRetirement Corpus Calculator
Estimate a retirement fund target from expenses, inflation, and a planned withdrawal period.
Open calculatorReverse Percentage Calculator
Find the original amount before a known percentage increase or decrease.
Open calculatorROI Calculator
Measure profit or loss against total cost basis.
Open calculatorSalary to Hourly Calculator
Convert gross pay between annual, monthly, weekly, and hourly amounts for your schedule.
Open calculatorSavings Calculator
Project savings from an initial balance, monthly deposits, and interest.
Open calculatorSavings Goal Calculator
Find the monthly contribution needed to reach a target amount by a chosen year.
Open calculatorSelling Price Calculator
Calculate a selling price that covers unit costs and selling fees at a target margin.
Open calculatorSimple Interest Calculator
Calculate interest earned only on the original principal.
Open calculatorSIP Calculator
Project the value of fixed monthly investments using a constant return.
Open calculatorSpeed Converter
Convert speeds between metres per second, kilometres per hour, miles per hour, feet per second, and knots.
Open calculatorSquare Footage Calculator
Calculate rectangle area, repeated quantities, waste allowance, and unit conversions.
Open calculatorStandard Deviation Calculator
Measure the spread of a dataset, with sample and population results.
Open calculatorStep-Up SIP Calculator
Model monthly investments that increase once a year, with a fixed SIP for comparison.
Open calculatorSWP Calculator
Model fixed monthly withdrawals and see whether a fund lasts through the chosen period.
Open calculatorTemperature Converter
Convert Celsius, Fahrenheit, and Kelvin temperatures or temperature differences.
Open calculatorTile Calculator
Estimate tiles and boxes from surface size, tile size, and waste allowance.
Open calculatorTime Duration Calculator
Find elapsed hours and minutes between two clock times.
Open calculatorTip Calculator
Calculate a pre-tax tip and split the total evenly.
Open calculatorWeight Converter
Convert mass between kilograms, grams, pounds, ounces, stones, and metric tonnes.
Open calculatorWeighted Average Calculator
Find a weighted mean from values and their relative weights, counts, or quantities.
Open calculatorCase Converter
Change letter case while retaining the text’s punctuation and line breaks.
Open toolEmail Extractor
Extract conventional email-address patterns from text and optionally remove duplicates.
Open toolFind and Replace Text
Replace every literal occurrence of a phrase, with optional case-insensitive matching.
Open toolLine Break Remover
Join hard-wrapped lines while optionally preserving blank-line paragraph boundaries.
Open toolList Compare
Find shared or missing entries across two lists, comparing one item per line.
Open toolReading Time Estimator
Estimate the time needed to read a passage at a chosen words-per-minute rate.
Open toolRemove Duplicate Lines
Deduplicate a line-based list with optional trimming and case-insensitive matching.
Open toolSlug Generator
Turn a title into a lowercase, hyphen-separated slug using ASCII or Unicode characters.
Open toolSort Lines
Sort a text list alphabetically or by natural numeric order, ascending or descending.
Open toolText Compare
Compare two passages line by line and label unchanged, added, and removed lines.
Open toolText Wrapper
Reflow plain text to a chosen line width, preserving paragraphs and controlling long words.
Open toolWhitespace Cleaner
Remove repeated horizontal spaces and tidy line edges without flattening paragraphs.
Open toolWord Counter
Count words, visible characters, lines, and paragraphs in pasted text.
Open toolWord Frequency Counter
Rank the most frequent words in a passage, with optional case-sensitive grouping.
Open toolBase64 Encoder and Decoder
Encode UTF-8 text as Base64 or decode Base64 back into valid UTF-8 text.
Open toolColor Converter
Convert an opaque sRGB color between hexadecimal, RGB, and HSL notation.
Open toolCSV to JSON Converter
Convert a header-based CSV table into a JSON array while preserving cell text.
Open toolHTML Entity Converter
Escape HTML-sensitive characters or decode common named and numeric character references.
Open toolJSON Compare
Compare two JSON values structurally, ignoring object-key order while preserving array order.
Open toolJSON Formatter
Validate JSON syntax and format it with indentation or compact output.
Open toolJSON String Escape
Escape plain text as a quoted JSON string or recover text from one JSON string value.
Open toolJSON to CSV Converter
Turn a JSON array of objects into CSV with a combined header and quoted fields.
Open toolJWT Decoder
Inspect the JSON header and payload of a three-part JWT without verifying its signature.
Open toolNumber Base Converter
Convert signed integers between bases 2 through 36 without losing large-integer precision.
Open toolText to Hex Converter
Encode text as hexadecimal UTF-8 bytes or decode complete byte pairs back into text.
Open toolUnicode Escape Converter
Convert text to Unicode escape sequences or decode supported JavaScript-style Unicode escapes.
Open toolUnix Timestamp Converter
Convert Unix timestamps to UTC or convert an explicitly zoned ISO date into an epoch value.
Open toolURL Encoder and Decoder
Percent-encode a URL component or decode percent escapes back into text.
Open toolURL Parser
Break an HTTP or HTTPS URL into its components and repeated query parameters.
Open toolUTM Link Builder
Add campaign tracking parameters to a URL while retaining its other query values and fragment.
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