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Calciyums

All Tools

Calculate, convert, edit and plan: all of it free.

Money & Finance

Percentage CalculatorFind a percentage of a number, what percent one number is of another, and percent change in seconds.
Salary Increase CalculatorSee what your new salary will be after a percentage raise, and the yearly difference.
VAT CalculatorAdd or remove VAT and see the net, VAT and gross amounts in one step.
Discount CalculatorWork out the sale price and how much you save from a percentage discount.
Percentage Increase CalculatorApply a percentage increase to an amount, or work out the increase from an old and a new amount.
Currency ConverterConvert dollars, euros, pounds and more to Turkish lira or to each other with the Central Bank of Türkiye's daily rates.
Loan Payment CalculatorWork out the monthly payment, the total repaid and the total interest from the loan amount, interest rate and term.
Interest CalculatorWork out what a principal grows to with simple or compound interest, the interest earned and the effective annual yield.
Loan Early Payoff CalculatorSee how much sooner your loan finishes, and how much interest you save, by paying a bit more every month or a lump sum now.
Savings Goal CalculatorWork out when you'll reach a savings goal, from what you've already saved, your monthly contribution and a return rate.
50/30/20 Budget Rule CalculatorSplit your monthly income between needs, wants and savings using the 50/30/20 rule — or your own ratios.
Stacked Discount CalculatorWork out the real combined effect of several discounts applied one after another — it isn't the sum of the rates.
Gross to Net Salary Calculator (Turkey, 2026)Work out your take-home pay from a gross Turkish salary using the 2026 income tax brackets, SGK and stamp duty rates.
Investment Growth CalculatorFrom a starting amount, a monthly contribution and a return rate, work out what your investment will be worth after a given term.

Date & Time

Age CalculatorFind your exact age in years, months and days, plus how many days, hours and minutes you've lived.
Days Between Dates CalculatorFind how many days, weeks, months and working days lie between two dates.
Birthday CountdownFind out how many days are left until your next birthday and which weekday it falls on.
Add / Subtract Days from a DateAdd or subtract days, weeks, months or years to a date and see which weekday the result falls on.
CountdownSee how many days, weeks and working days are left until a date, or how long ago it was.
Date Format ConverterConvert a date into other formats and see its weekday, day of the year and ISO week number.

Daily Life

Bill SplitterSplit a dinner, trip or shared shopping bill evenly between people.
Tip CalculatorWork out the tip as a percentage of the bill, the total, and each person's share.
BMI CalculatorWork out your body mass index from your weight and height, see which range it falls in and your healthy weight range.
Water Intake CalculatorWork out how much water to drink a day, in litres and glasses, from your weight, exercise and the climate.
Calorie CalculatorWork out your basal metabolic rate (BMR) and your total daily calorie need (TDEE) from your activity level.
Grade Average CalculatorEnter each course's grade and credit to work out your credit-weighted average (GPA) instantly.
Dog and Cat Age CalculatorWork out what your dog's or cat's age comes to in human years.
Work Hours CalculatorEnter each day's clock-in and clock-out times to work out your total hours worked.
Sleep Cycle CalculatorFrom a wake-up time or a bedtime, work out the times that let you wake up between 90-minute sleep cycles, not mid-cycle.
Pace CalculatorFrom a distance and a time, work out your running or walking pace (minutes per km/mile) and speed.

Travel

Fuel Cost CalculatorWork out the fuel cost of a trip, the litres needed and each passenger's share from distance, consumption and fuel price.
Trip Budget CalculatorAdd up accommodation, food, transport and activities to get your total trip budget, the cost per person and per day.
Time Zone ConverterConvert a time in one city to another city's time and see daylight saving, the time difference and any change of date.

Text & Convert

Word CounterCount the words, characters, sentences and paragraphs in a text and see how long it takes to read.
Slug GeneratorTurn a title into a clean, SEO-friendly URL slug and strip accents and special characters.
Character CounterCount the characters in a text, with and without spaces, plus words, lines and UTF-8 size.
Text CleanerClean up extra spaces, empty and duplicate lines, line breaks and emoji in one click.
Case ConverterConvert text to upper case, lower case, title case or sentence case.
Text CompareCompare two texts line by line and see the added, removed and unchanged lines.
Unit ConverterConvert length, weight, temperature, volume, area and speed units: km to miles, kg to pounds, °C to °F, litres to gallons and more.

Files & Images

Image ResizerResize photos and images by pixels or percent. Your files are processed in your browser and never uploaded.
Image ConverterConvert PNG, JPG, WebP, GIF and BMP images to one another. Your files are processed in your browser and never uploaded.
Image CompressorReduce the file size (KB/MB) of photos and images. Your files are processed in your browser and never uploaded.
PDF MergerCombine several PDF files into one PDF in the order you choose. Your files are processed in your browser and never uploaded.
PDF SplitterPull pages out of a PDF, remove pages, or split a document into parts. Your file is processed in your browser and never uploaded.
Images to PDFTurn JPG, PNG and other images into one PDF; choose the page size and margin. Your files are processed in your browser and never uploaded.
PDF to ImageTurn a PDF's pages into JPG or PNG images. Your file is processed in your browser and never uploaded.
PDF CompressorReduce the file size (MB) of PDF files. Your files are processed in your browser and never uploaded.

Developer

JSON FormatterFormat, minify and validate JSON, and see where the error is when it's invalid.
Base64 Encoder / DecoderEncode text to Base64 or decode Base64 back to text, with full UTF-8 support.
UUID GeneratorGenerate random UUID v4 or time-ordered UUID v7 in one click.
JSON ValidatorCheck whether your JSON is valid and see what's wrong if it isn't.
Unix Timestamp ConverterConvert a Unix timestamp to a readable date and a date to a timestamp. Seconds and milliseconds are told apart automatically.
URL Encoder / DecoderTurn text into percent-encoding that is safe to use in a URL, or decode an encoded URL back to readable text.
Color ConverterConvert between HEX, RGB, HSL, HSV and CMYK colour codes, and see a preview and the contrast ratio.
Number Base ConverterConvert between binary, octal, decimal and hexadecimal number systems.
Hash GeneratorWork out a text's MD5, SHA-1, SHA-256 and SHA-512 hash instantly.
JWT DecoderShow a JWT's header and payload as readable JSON; the signature is not verified.
Subnet CalculatorFrom an IPv4 address and a CIDR prefix, work out the network address, broadcast address, subnet mask and usable host range.
Contrast Checker (WCAG)Work out the contrast ratio between two colours and see whether it passes WCAG AA and AAA.

Random

Password GeneratorGenerate a strong, random password with the length and character types you choose.
Random Number GeneratorPick one or several random numbers in any range, with or without repeats.
Random PickerPick one or several random options from a list: what to eat, who goes first, which one to buy.
Random Team GeneratorSplit a list of names into random, balanced teams for a game, a class project or a work group.
Coin FlipFlip a coin for a random heads or tails; flip more than one at a time and see how many of each you got.
Dice RollRoll one or more dice and see each result and the total. Any number of sides, from a standard six-sider up.