What's the difference between a unit converter and a file converter?

A unit converter changes a number from one measurement system to another, like kilometres to miles, without touching any file, it's pure arithmetic. A file converter changes the actual format a file is stored in, like a PDF into a Word document or a PNG into a JPG, re-encoding the underlying data rather than converting a number.

Do any of these converters upload my files to a server?

No, every converter linked here runs entirely in your browser using on-device processing, your files and data never leave your device. The one exception is a small handful of tools noted on their own pages as server-processed, listed separately from the rest.

Which converter should I use for currency?

Currency conversion isn't a fixed unit ratio like length or weight, it depends on live exchange rates, so it has its own dedicated Currency Converter calculator rather than living in the fixed-ratio unit converter list here.

Why are unit converters and file converters on the same page?

Both answer the same underlying question, "how do I get this from one format into another," people searching for a converter often don't distinguish between the two until they see what's actually available, so this page groups both together instead of splitting them across two separate, harder-to-find pages.

Converters

Converting a value or a file between formats is one of the most common everyday computing tasks, and it usually means hunting down a specific tool for the specific pair of units or formats you need. This page collects every converter 2xKit offers in one place: unit and measurement calculators (length, weight, temperature and more) alongside file and format conversion tools (images, PDFs, audio, video and data formats), so you can find the right one without guessing which section of the site it lives in.

Currency

Currency exchange rates move constantly, unlike the fixed ratios below, so it gets its own dedicated converter using live rates.

Currency Converter

Convert between 56 world currencies using live exchange rates, or enter your own rate manually.

Unit & measurement converters

Fixed-ratio conversions, length, weight, temperature, speed, time and more, computed instantly from an exact formula.

Length Converter

Convert between metres, feet, miles, kilometres and more.

Area Converter

Convert between square feet, square metres, acres, hectares and more.

Weight Converter

Convert between kilograms, pounds, grams, ounces and more.

Volume Converter

Convert between litres, gallons, cubic feet and cubic metres.

Speed Converter

Convert between km/h, mph, m/s and knots.

Time Converter

Convert between seconds, minutes, hours, days and weeks.

Temperature Converter

Convert between Celsius, Fahrenheit and Kelvin.

Energy Converter

Convert between joules, calories, watt-hours, kWh, BTU and electronvolts.

Pressure Converter

Convert between pascals, bar, PSI, atmospheres, torr and mmHg.

Force Converter

Convert between newtons, kilonewtons, dynes, kilogram-force and pound-force.

Power Converter

Convert between watts, kilowatts, horsepower and BTU per hour.

Digital Storage Converter

Convert between bits, bytes, KB, MB, GB, TB and their binary (KiB/MiB/GiB) equivalents.

Angle Converter

Convert between degrees, radians, gradians, arcminutes and arcseconds.

Cooking Measurement Converter

Convert between teaspoons, tablespoons, cups, millilitres and fluid ounces.

Oven Temperature & Gas Mark Converter

Convert between Fahrenheit, Celsius and UK gas mark oven temperatures.

Fuel Economy Converter

Convert between miles per gallon, litres per 100km, and kilometres per litre.

Download Time Calculator

Estimate how long a file will take to download at a given internet speed.

Torque Converter

Convert between newton-metres, pound-feet and kilogram-force metres.

World Time Zone Offset Calculator

Work out what time it is in another city given the time in yours.

File & format converters

Change a file's actual format, images, PDFs, audio, video and data files, without installing anything or uploading it to a server.

Convert Image Format

Convert images between JPG, PNG and WebP.

HEIC to JPG Converter

Convert iPhone HEIC photos into standard JPG files.

Batch Image Converter

Convert multiple images to JPG, PNG or WebP at once, downloaded as a zip.

Pixel Art Converter

Turn a photo into blocky pixel art with adjustable resolution and color count.

PDF to Word

Convert PDF documents into editable Word files.

Word to PDF

Convert Word documents into PDF files.

PDF Page Size Converter

Scale a PDF's pages to A4, Letter or Legal size.

PDF Grayscale Converter

Convert a color PDF to grayscale for cheaper black-and-white printing.

Markdown ↔ HTML Converter

Convert Markdown to HTML, or HTML back to Markdown.

Audio Converter

Convert audio files between common formats.

Video to GIF

Convert a video clip into an animated GIF.

Video Format Converter

Convert a video between MP4, WebM, MOV, AVI and MKV.

Video Grayscale Converter

Convert a color video to black and white.

Vertical Video Converter

Convert a horizontal video to vertical 9:16 for Reels, Shorts and TikTok.

Stereo/Mono Converter

Convert an audio file between stereo and mono.

SRT ↔ VTT Converter

Convert subtitle files between SRT and WebVTT formats.

File Converter

Convert data files between CSV, JSON and TSV.

JSON ↔ CSV Converter

Convert between JSON arrays and CSV tables.

YAML ↔ JSON Converter

Convert between YAML and JSON.

JSON ↔ XML Converter

Convert between JSON and XML.

YAML ↔ XML Converter

Convert between YAML and XML.

CSV Delimiter Converter

Convert between comma, tab, semicolon and pipe delimited files.

SQL ↔ CSV Converter

Convert CSV rows to SQL INSERT statements, or extract data back out.

Spreadsheet Column Letter Converter

Convert between spreadsheet column letters (A, B, ..., AA) and numbers.

Number Base Converter

Convert numbers between binary, octal, decimal and hex.

Base64 Converter

Encode or decode text and files as Base64.

Base32 Encoder/Decoder

Encode or decode text as Base32.

File to Base64 Converter

Encode any file as Base64, or decode Base64 back into a downloadable file.

Hex ↔ Text Converter

Convert text to hexadecimal, or hex back to text.

HTML Entity Encoder/Decoder

Encode text to HTML entities, or decode HTML entities back to text.

HTML ↔ Text Converter

Convert HTML to plain text, or plain text to simple HTML.

Line Break Converter

Remove line breaks, or add them after each sentence.

IP Address Converter

Convert an IPv4 address between dotted decimal, integer, hex and binary.

Timestamp Converter

Convert between Unix timestamps and human-readable dates.

Case Converter

Convert text between camelCase, snake_case and more.

Archive Format Converter

Convert between ZIP and uncompressed TAR archives.

File Size Converter

Convert between bytes, KB, MB, GB, and their binary (KiB/MiB/GiB) equivalents.

Looking for something else entirely? Browse all calculators or browse all tools.