Converters

Free Online Converters

Convert text, numbers, units, data, code, URLs, images, colours, currencies and more with free online conversion tools.

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Online Converters for Everyday and Technical Tasks

YesTools provides a broad collection of free online converters for everyday calculations, technical work, development, data processing, cooking, finance, science and more. Choose a converter below to work with the specific format or unit you need.

From converting kilometres to miles and Celsius to Fahrenheit to transforming JSON into XML, changing text case, converting number systems or working with image colour formats, these tools provide quick ways to convert values between commonly used formats.

All Converters

Browse the complete collection of free online converters by category.

Text & Character Converters

Convert text between different cases, character encodings, number representations and common text formats.

Uppercase to Lowercase Converter Lowercase to Uppercase Converter Title Case Converter Sentence Case Converter Capitalize Words Converter Toggle Case Converter Alternating Case Converter Inverse Case Converter Camel Case Converter Pascal Case Converter Snake Case Converter Kebab Case Converter Dot Case Converter Constant Case Converter Slug Case Converter Train Case Converter Path Case Converter Swap Case Converter Text to ASCII Converter ASCII to Text Converter Text to Unicode Converter Unicode to Text Converter Text to Binary Converter Binary to Text Converter Text to Hex Converter Hex to Text Converter Text to Octal Converter Octal to Text Converter Text to Decimal Converter Decimal to Text Converter Text to Morse Code Converter Morse Code to Text Converter Text to Braille Converter Braille to Text Converter Text to NATO Alphabet Converter NATO Alphabet to Text Converter Text to ROT13 Converter ROT13 to Text Converter Text to Base64 Converter Base64 to Text Converter

Number System Converters

Convert numbers between binary, decimal, hexadecimal, octal and other numerical representations.

Binary to Decimal Converter Decimal to Binary Converter Binary to Hex Converter Hex to Binary Converter Binary to Octal Converter Octal to Binary Converter Decimal to Hex Converter Hex to Decimal Converter Decimal to Octal Converter Octal to Decimal Converter Hex to Octal Converter Octal to Hex Converter Decimal to Base Converter Base to Decimal Converter Binary to Base Converter Hex to Base Converter Octal to Base Converter Base64 to Hex Converter Hex to Base64 Converter Integer to Roman Numeral Converter Roman Numeral to Integer Converter Number to Words Converter Words to Number Converter Decimal to Fraction Converter Fraction to Decimal Converter Fraction to Percentage Converter Percentage to Fraction Converter Decimal to Percentage Converter Percentage to Decimal Converter Scientific Notation Converter

Unit Converters

Convert common physical, scientific and engineering units for measurements including length, mass, volume, energy, electricity and more.

Length Converter Distance Converter Weight Converter Mass Converter Area Converter Volume Converter Temperature Converter Speed Converter Time Converter Pressure Converter Energy Converter Power Converter Force Converter Torque Converter Density Converter Frequency Converter Acceleration Converter Angle Converter Data Storage Converter Data Transfer Rate Converter Fuel Consumption Converter Flow Rate Converter Voltage Converter Current Converter Resistance Converter Capacitance Converter Inductance Converter Magnetic Field Converter Luminance Converter Illuminance Converter Sound Level Converter Radiation Converter Electric Charge Converter Electric Potential Converter Conductance Converter Thermal Conductivity Converter Specific Heat Converter Dynamic Viscosity Converter Kinematic Viscosity Converter

Length & Distance

Convert distances and lengths between metric, imperial and nautical units.

Kilometres to Miles Miles to Kilometres Metres to Feet Feet to Metres Metres to Yards Yards to Metres Metres to Inches Inches to Metres Centimetres to Inches Inches to Centimetres Feet to Inches Inches to Feet Feet to Yards Yards to Feet Miles to Yards Yards to Miles Miles to Feet Feet to Miles Nautical Miles to Miles Miles to Nautical Miles Nautical Miles to Kilometres Kilometres to Nautical Miles

Weight & Mass

Convert weights and masses between kilograms, pounds, ounces, stones, grams and tonnes.

Kilograms to Pounds Pounds to Kilograms Kilograms to Ounces Ounces to Kilograms Pounds to Ounces Ounces to Pounds Stones to Pounds Pounds to Stones Stones to Kilograms Kilograms to Stones Grams to Ounces Ounces to Grams Grams to Pounds Pounds to Grams Milligrams to Grams Grams to Milligrams Tonnes to Kilograms Kilograms to Tonnes Tonnes to Pounds Pounds to Tonnes

Temperature

Convert temperatures between Celsius, Fahrenheit, Kelvin and Rankine scales.

Celsius to Fahrenheit Fahrenheit to Celsius Celsius to Kelvin Kelvin to Celsius Fahrenheit to Kelvin Kelvin to Fahrenheit Celsius to Rankine Fahrenheit to Rankine Kelvin to Rankine

Area

Convert areas between square metres, square feet, square yards, square kilometres, square miles, acres and hectares.

Square Metres to Square Feet Square Feet to Square Metres Square Metres to Square Yards Square Yards to Square Metres Square Kilometres to Square Miles Square Miles to Square Kilometres Acres to Square Metres Square Metres to Acres Acres to Hectares Hectares to Acres Hectares to Square Metres Square Metres to Hectares Square Feet to Acres Acres to Square Feet

Volume

Convert liquid and volume measurements between litres, gallons, pints, cups, fluid ounces and other units.

Litres to Gallons Gallons to Litres Litres to Imperial Gallons Imperial Gallons to Litres US Gallons to Litres Litres to US Gallons Millilitres to Litres Litres to Millilitres Millilitres to Fluid Ounces Fluid Ounces to Millilitres US Cups to Millilitres Millilitres to US Cups UK Cups to Millilitres Millilitres to UK Cups Tablespoons to Millilitres Millilitres to Tablespoons Teaspoons to Millilitres Millilitres to Teaspoons Pints to Litres Litres to Pints Quarts to Litres Litres to Quarts Imperial Pints to Litres Litres to Imperial Pints

Cooking Converters

Convert common cooking measurements between cups, tablespoons, teaspoons, grams, millilitres and ounces.

Cups to Tablespoons Tablespoons to Cups Cups to Teaspoons Teaspoons to Cups Tablespoons to Teaspoons Teaspoons to Tablespoons Cups to Millilitres Millilitres to Cups Cups to Grams Grams to Cups Tablespoons to Grams Grams to Tablespoons Teaspoons to Grams Grams to Teaspoons Ounces to Cups Cups to Ounces Fahrenheit to Celsius Cooking Converter Celsius to Fahrenheit Cooking Converter

Time Converters

Convert seconds, minutes, hours, days, weeks, months and years, along with timestamps and time formats.

Seconds to Minutes Minutes to Seconds Minutes to Hours Hours to Minutes Hours to Seconds Seconds to Hours Hours to Days Days to Hours Days to Weeks Weeks to Days Weeks to Months Months to Weeks Months to Days Days to Months Months to Years Years to Months Days to Years Years to Days Minutes to Days Days to Minutes Seconds to Days Days to Seconds Decimal Hours to Hours and Minutes Hours and Minutes to Decimal Hours Decimal Minutes to Minutes and Seconds Unix Timestamp to Date Date to Unix Timestamp Unix Timestamp to ISO 8601 ISO 8601 to Unix Timestamp Unix Timestamp to UTC UTC to Unix Timestamp UTC to Local Time Local Time to UTC 12-Hour to 24-Hour Converter 24-Hour to 12-Hour Converter

Data Storage Converters

Convert digital storage and data units between bytes, bits, kilobytes, megabytes, gigabytes, terabytes and binary storage units.

Bytes to Kilobytes Kilobytes to Bytes Kilobytes to Megabytes Megabytes to Kilobytes Megabytes to Gigabytes Gigabytes to Megabytes Gigabytes to Terabytes Terabytes to Gigabytes Bytes to Megabytes Megabytes to Bytes Bytes to Gigabytes Gigabytes to Bytes Bytes to Terabytes Terabytes to Bytes Bits to Bytes Bytes to Bits Kilobits to Kilobytes Kilobytes to Kilobits Megabits to Megabytes Megabytes to Megabits Gigabits to Gigabytes Gigabytes to Gigabits Decimal vs Binary Storage Converter MB to MiB MiB to MB GB to GiB GiB to GB TB to TiB TiB to TB

Internet Speed & Bandwidth

Convert internet speeds and bandwidth between bits, bytes, megabits, megabytes, gigabits and gigabytes.

Mbps to MB/s MB/s to Mbps Gbps to GB/s GB/s to Gbps Kbps to KB/s KB/s to Kbps Mbps to Kbps Kbps to Mbps Mbps to Gbps Gbps to Mbps Download Speed Converter Upload Speed Converter Internet Speed Converter Bandwidth Converter Data Transfer Rate Converter

Digital & Web Development

Convert structured data, markup, programming formats and web development data between commonly used representations.

JSON to XML Converter XML to JSON Converter JSON to YAML Converter YAML to JSON Converter XML to YAML Converter YAML to XML Converter JSON to CSV Converter CSV to JSON Converter CSV to XML Converter XML to CSV Converter CSV to YAML Converter YAML to CSV Converter JSON to TypeScript Converter JSON to JavaScript Converter JSON to Python Converter JSON to PHP Converter JSON to Java Converter JSON to C# Converter HTML to Markdown Converter Markdown to HTML Converter HTML to Plain Text Converter HTML to BBCode Converter Markdown to Plain Text Converter CSS to SCSS Converter SCSS to CSS Converter CSS to LESS Converter JavaScript to TypeScript Converter Unix Timestamp Converter Data URI Converter Base64 to Data URI Converter Data URI to Base64 Converter

URL & Encoding

Convert URLs, query parameters, HTML entities, Punycode and encoded web data between common formats.

URL to QR Code Converter URL Encoder/Decoder Query String Encoder/Decoder URL to Slug Converter URL to Domain Converter URL to Hostname Converter URL to Path Converter URL to Query Parameters Query Parameters to URL URL to Punycode Converter Punycode to Unicode Converter Unicode to Punycode Converter Base64 URL Converter HTML Entity Converter HTML Entity to Text Converter Text to HTML Entity Converter

Image & Graphics

Convert image dimensions, resolution and colour values between common digital graphics formats.

Pixels to Inches Converter Inches to Pixels Converter Pixels to Centimetres Converter Centimetres to Pixels Converter Pixels to Millimetres Converter Millimetres to Pixels Converter DPI to PPI Converter PPI to DPI Converter DPI to Pixels Calculator Pixels to DPI Calculator Aspect Ratio Converter Aspect Ratio to Dimensions Converter Image Dimensions Converter RGB to HEX Converter HEX to RGB Converter RGB to HSL Converter HSL to RGB Converter RGB to HSV Converter HSV to RGB Converter HEX to HSL Converter HSL to HEX Converter HEX to CMYK Converter CMYK to HEX Converter RGB to CMYK Converter CMYK to RGB Converter Colour Name to HEX Converter HEX to Colour Name Converter

Colour Converters

Convert colours between HEX, RGB, HSL, HSV, HSB, CMYK, HWB and CSS colour representations.

HEX to RGB RGB to HEX HEX to HSL HSL to HEX RGB to HSL HSL to RGB RGB to HSV HSV to RGB RGB to HSB HSB to RGB RGB to CMYK CMYK to RGB HEX to CMYK CMYK to HEX RGB to HWB HWB to RGB HSL to HWB HWB to HSL HEX to CSS Colour CSS Colour to HEX

Energy & Electricity

Convert energy, power and electrical measurements including watts, kilowatts, joules, volts, amps, ohms and horsepower.

Watts to Kilowatts Kilowatts to Watts Watts to Kilowatt-Hours Kilowatt-Hours to Watts Joules to Kilowatt-Hours Kilowatt-Hours to Joules Joules to Calories Calories to Joules BTU to Joules Joules to BTU BTU to Kilowatt-Hours Kilowatt-Hours to BTU Volts to Amps Amps to Volts Watts to Volts Volts to Watts Watts to Amps Amps to Watts Ohms to Volts Volts to Ohms Ohms to Amps Amps to Ohms Kilowatt to Horsepower Horsepower to Kilowatts

Pressure

Convert pressure measurements between PSI, bar, kPa, atmospheres and mmHg.

PSI to Bar Bar to PSI PSI to kPa kPa to PSI Bar to kPa kPa to Bar PSI to Atmospheres Atmospheres to PSI Bar to Atmospheres Atmospheres to Bar mmHg to PSI PSI to mmHg mmHg to kPa kPa to mmHg

Speed

Convert speeds between miles per hour, kilometres per hour, metres per second, knots, Mach and feet per second.

MPH to KM/H KM/H to MPH MPH to Metres/Second Metres/Second to MPH KM/H to Metres/Second Metres/Second to KM/H Knots to MPH MPH to Knots Knots to KM/H KM/H to Knots Mach to MPH Mach to KM/H Feet/Second to MPH MPH to Feet/Second

Automotive

Convert automotive measurements including fuel economy, distance, speed, engine displacement, power and torque.

MPG to L/100km L/100km to MPG UK MPG to US MPG US MPG to UK MPG Miles to Kilometres Kilometres to Miles Miles per Hour to Kilometres per Hour Kilometres per Hour to Miles per Hour Fuel Economy Converter Fuel Consumption Converter Engine Displacement Converter Kilowatts to Horsepower Horsepower to Kilowatts Torque Converter Newton Metres to Foot-Pounds Foot-Pounds to Newton Metres

Finance & Currency

Convert currencies and exchange values between major currency pairs, with additional cryptocurrency converters.

Currency Converter USD to GBP Converter GBP to USD Converter EUR to GBP Converter GBP to EUR Converter USD to EUR Converter EUR to USD Converter CAD to GBP Converter GBP to CAD Converter AUD to GBP Converter GBP to AUD Converter JPY to GBP Converter GBP to JPY Converter CHF to GBP Converter GBP to CHF Converter INR to GBP Converter GBP to INR Converter Currency Exchange Calculator Cryptocurrency Converter Bitcoin Currency Converter Ethereum Currency Converter Percentage to Decimal Converter Decimal to Percentage Converter

Cooking & Kitchen

Convert cooking measurements and oven temperatures between common kitchen units and formats.

Grams to Cups Converter Cups to Grams Converter Grams to Ounces Converter Ounces to Grams Converter Millilitres to Ounces Converter Ounces to Millilitres Converter Celsius to Fahrenheit Converter Fahrenheit to Celsius Converter Gas Mark to Celsius Converter Celsius to Gas Mark Converter Gas Mark to Fahrenheit Converter Fahrenheit to Gas Mark Converter

Science & Engineering

Convert scientific and engineering quantities including density, force, energy, power, pressure, frequency, wavelength, velocity, momentum and electrical measurements.

Density Converter Force Converter Energy Converter Power Converter Pressure Converter Frequency Converter Wavelength Converter Wave Speed Converter Acceleration Converter Velocity Converter Momentum Converter Torque Converter Angular Velocity Converter Angular Acceleration Converter Heat Capacity Converter Thermal Conductivity Converter Electrical Resistance Converter Electrical Conductance Converter Capacitance Converter Inductance Converter Magnetic Flux Converter Magnetic Field Strength Converter
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Free Online Converters for Everyday and Technical Use

Online converters are useful whenever a value needs to be represented in a different unit, format or notation. Instead of manually applying conversion formulas, a dedicated converter can provide a convenient way to transform a value between commonly used representations.

The YesTools Converters collection covers a wide range of conversion tasks, from simple everyday measurements to developer-focused data formats and scientific quantities. Tools are organised into categories so you can quickly find the conversion you need.

Text, Character and Number Converters

Text converters can change capitalisation and naming conventions, including uppercase, lowercase, title case, sentence case, camel case, Pascal case, snake case and kebab case. Character converters also provide conversions involving ASCII, Unicode, binary, hexadecimal, octal, decimal, Morse code, Braille, NATO alphabet, ROT13 and Base64. Number system converters cover common representations such as binary, decimal, hexadecimal and octal.

Unit, Measurement and Time Converters

Unit converters cover measurements such as length, distance, weight, mass, area, volume, temperature, speed, pressure, energy, power, force, torque, density and frequency. Dedicated converters are also available for common length, weight, temperature, area and volume conversions, as well as time units and Unix timestamps.

Data, Programming and Web Converters

Developers can use converters for structured formats including JSON, XML, YAML and CSV, alongside programming and markup conversions involving TypeScript, JavaScript, Python, PHP, Java, C#, HTML, Markdown, CSS, SCSS and LESS. URL and encoding converters provide additional tools for URLs, query parameters, Punycode, HTML entities, Base64 and Data URIs.

Image, Colour and Digital Converters

Image and graphics converters cover pixels, physical dimensions, DPI, PPI and aspect ratios, as well as common colour models. Colour conversion tools support formats including HEX, RGB, HSL, HSV, HSB, CMYK, HWB and CSS colour values.

Finance, Automotive, Cooking and Science

The collection also includes currency and cryptocurrency converters, automotive fuel and performance conversions, cooking and kitchen measurements, electrical quantities, pressure, speed and a range of scientific and engineering conversions.

Using the Converters on YesTools

Each converter has its own dedicated page with an interface designed for the specific conversion. Select the converter that matches the value you need to convert, enter the required input and review the resulting value in the desired format or unit.

Conversion results depend on the units, formats and values selected. Where a conversion involves conventions that can vary between systems or contexts, such as cooking measurements, currency values or decimal and binary data units, make sure the selected conversion type matches your intended use.

James William Steven Parker, creator of YesTools
Created by

James William Steven Parker

Creator & Developer of YesTools

James William Steven Parker is a web developer and technology professional with extensive experience in web development, web design, SEO, web hosting, systems analysis and cybersecurity. He created YesTools to provide fast, practical and free online tools for everyday tasks and technical work.

Learn more about James and YesTools

Frequently Asked Questions

YesTools provides free online converters for text and characters, number systems, units, length, weight, temperature, area, volume, cooking, time, data storage, internet speed, programming formats, URLs, images, colours, energy, pressure, speed, automotive measurements, finance, currency, science and engineering.
Yes. The converters available in this category are free online tools designed for quick conversions without requiring specialist software.
Yes. Text and character converters cover case conversion, ASCII, Unicode, binary, hexadecimal, octal, decimal, Morse code, Braille, NATO alphabet, ROT13 and Base64 conversions.
Yes. Unit converters cover measurements including length, distance, weight, mass, area, volume, temperature, speed, time, pressure, energy, power, force, torque, density, frequency, electricity and other scientific units.
Yes. Digital and web development converters include JSON, XML, YAML, CSV, TypeScript, JavaScript, Python, PHP, Java, C#, HTML, Markdown, CSS, SCSS, LESS, Unix timestamps and Data URIs.
Yes. The Finance & Currency section includes currency conversion tools, major currency pair converters, exchange calculations and cryptocurrency conversion tools.

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