Converters
Converters Calculators
Convert files, measurements, formats, and everyday units in the browser.
53 tools
ASCII Converter
ASCII converter: turn any text into ASCII character codes and convert ASCII codes back into readable text instantly. Free, private, in-browser, no signup.
Angle Converter
Angle converter that switches between degrees, radians, gradians, turns, arcminutes, and arcseconds instantly. Free, private, runs in your browser, no signup.
Area Converter
Area converter: square feet, acres, hectares, and square meters. Free area converter with the formula shown - runs entirely in your browser, no signup.
Belt Size Calculator
Belt size calculator converts your pant waist size into the correct belt length in inches and cm. Free, private, runs locally in your browser, no signup.
Children Size Converter
Children size converter: US to EU kids clothing sizes. Free children size converter with the formula shown - runs entirely in your browser, no signup.
Crochet Hook Converter
Crochet hook converter: translate hook sizes between US letters, UK numbers, and metric millimeters for any yarn pattern. Free, private, runs in your browser.
DPI Calculator
DPI calculator: pixels per inch from pixel dimensions and print size. Free dpi calculator with the formula shown - runs entirely in your browser, no signup.
Data Storage Converter
Data storage converter: bytes, KB, MB, GB, TB (binary 1024 base). Free data storage converter with the formula shown - runs entirely in your browser, no signup.
Distance Between ZIP Codes Calculator
Distance between ZIP codes calculator: measure straight-line distance between any two US ZIP codes for shipping zones and territory planning. Free, runs locally.
Dress Size Converter
Dress size converter: convert your bust and waist measurements between US, UK, EU, and Italian dress sizes instantly. Free, private, runs in your browser.
Energy Converter
Energy converter that switches between joules, calories, kWh, BTU, foot-pounds, electronvolts, and more instantly. Free, runs in your browser, no signup.
Glove Size Calculator
Glove size calculator: S/M/L/XL from hand circumference. Free glove size calculator with the formula shown - runs entirely in your browser, no signup.
Hat Size Calculator
Hat size calculator: convert head circumference in inches or centimetres into US, UK, and metric hat sizes instantly. Free, private, runs locally, no signup.
Hectare to Acre Converter
Hectare to acre converter: hectares, acres, square meters. Free hectare to acre converter with the formula shown - runs entirely in your browser, no signup.
Horsepower to kW Converter
Horsepower to kW converter instantly converts hp to kilowatts and back, mechanical, metric or electrical. Free, private, runs locally in your browser.
Inches to CM Converter
Inches to cm converter turns any inch measurement into centimeters instantly, with a reference table for common lengths. Free and runs in your browser, no signup.
Jean Size Calculator
Jean size calculator converts your waist and hip measurements into matching US, UK and EU jeans sizes for men and women. Free, runs locally, no signup.
Knitting Needle Converter
Knitting needle converter: US, mm and UK needle sizes. Free knitting needle converter with the formula shown - runs entirely in your browser, no signup.
Length Converter
Length converter: miles, kilometers, meters, feet, inches, yards. Free length converter with the formula shown - runs entirely in your browser, no signup.
Metric Prefix Converter
Metric prefix converter: kilo, mega, giga, tera and friends. Free metric prefix converter with the formula shown - runs entirely in your browser, no signup.
Octal Converter
Octal converter: convert octal numbers to decimal, binary, and hexadecimal, or back the other way, instantly and accurately. Free, private, in-browser.
Pressure Converter
Pressure converter: convert psi, bar, kPa, atm, and pascal instantly for tires, HVAC, hydraulics, and scuba tanks. Free and private, runs in your browser.
Ring Size Calculator
Ring size calculator: US ring size from finger circumference. Free ring size calculator with the formula shown - runs entirely in your browser, no signup.
Scale Converter
scale converter that translates measurements between model scales like 1:24, 1:48, 1:87 and real-world sizes in inches, mm, and feet. Free, runs in your browser.
Screen Size Calculator
Screen size calculator: convert between diagonal, width, and height by aspect ratio and compare the viewing area of TV or monitor sizes. Free, no signup.
Shoe Size Conversion
Shoe size conversion calculator: convert US, UK, EU, and centimeter shoe sizes for men, women, and kids instantly. Free, private, runs locally, no signup.
Speed Converter
Speed converter converts between mph, km/h, knots, m/s, and ft/s instantly with a quick reference table. Free, private, runs in your browser, no signup.
Stone to Pounds Converter
Stone to pounds converter: convert stone to pounds and kilograms instantly, with the formula shown for any value. Free, private, runs locally in your browser.
Temperature Converter
Temperature converter converts between Celsius, Fahrenheit, Kelvin, and Rankine instantly with a reference table. Free, private, runs in your browser, no signup.
Title Case Converter
Title case converter: format any text into APA, Chicago, AP, or MLA title case with correct rules for small words. Free, private, runs in your browser.
Torque Converter
Torque converter: convert lb-ft, Nm, kg-m, and in-lb instantly for engine specs, fastener specs, and DIY repairs. Free, private, runs in your browser, no signup.
US to EU Size Converter
US to EU size converter: translate US shoe and clothing sizes into accurate EU equivalents from your foot or body measurements. Free, private, no signup.
Volume Converter
Volume converter that switches between liters, gallons, cups, milliliters, cubic meters, and more instantly. Free, private, runs in your browser, no signup.
Weight Converter
Weight converter: pounds, kilograms, ounces, grams, and stones. Free weight converter with the formula shown - runs entirely in your browser, no signup.
Yard to Feet Converter
Yard to feet converter: convert yards to feet and feet to yards instantly for fabric, landscaping, and sports field measurements. Free, runs in your browser.
Yarn Weight Converter
Yarn weight converter: US names to wraps per inch and needle size. Free yarn weight converter with the formula shown - runs entirely in your browser, no signup.
ZIP Code County Lookup
ZIP code county lookup: find the county, state, and FIPS code for any US ZIP code instantly, for tax rates and address checks. Free, no signup, runs locally.
ZIP Code Lookup
zip code lookup that returns the city, state, county, and timezone for any US ZIP code instantly. Free, private, runs entirely in your browser, no signup.
ZIP Code Timezone Calculator
zip code timezone calculator that maps any US ZIP code to its time zone, current local time, and UTC offset instantly. Free, runs in your browser, no signup.
Baking Conversions
Baking conversions calculator: convert cups to grams, tablespoons to cups, and swap baking measurements by ingredient for accurate recipes. Free, no signup.
Roman Numeral Converter
Roman numeral converter: translate decimal numbers to Roman numerals and Roman numerals back to numbers instantly, for values up to 3999. Free, no signup.
Scientific Notation Converter
Scientific notation converter: turn decimals into scientific or engineering notation and back, with adjustable significant figures. Free, runs in your browser.
Ancient Unit Converter
Ancient unit converter: convert cubits to feet and meters, Roman miles, stadia, and biblical weights and measures instantly. Free, runs in your browser.
Base64 Encoder Decoder
Base64 encoder decoder: encode any text to Base64 or decode Base64 strings and images instantly. Free, private, runs locally in your browser, no signup.
CSV to JSON Converter
CSV to JSON converter: paste CSV data and get clean JSON instantly with header keys and correct type handling. Free, private, runs locally, no signup.
Hex to Decimal Converter
Hex to decimal converter: convert hexadecimal to decimal and decimal to hex instantly, with a conversion chart for reference. Free, runs in your browser.
Image Resizer
image resizer that resizes and compresses photos to exact pixel dimensions or file size without quality loss, right in your browser. Free, private, no signup.
Liters to Ounces Converter
Liters to ounces converter: convert liters to US or imperial fluid ounces with a reference table of common values. Free, accurate, runs in your browser.
PDF to JPG Converter
convert pdf to jpg by turning each PDF page into a high-resolution JPG or PNG image right in your browser, with no upload. Free, private, no signup required.
PSI to Bar Converter
PSI to bar converter: convert psi to bar and bar to psi using the exact definition 1 bar = 14.503773773 psi, with a reference table. Free, instant, runs in your browser.
Sitemap Validator
Sitemap validator: check XML sitemaps and robots.txt files for errors, broken URLs, and format problems before search engines crawl them. Free, no signup.
Text Case Converter
Text case converter: switch text to uppercase, lowercase, Title Case, camelCase, or capitalize sentences instantly. Free, no signup, runs in your browser.
Unit Converter
Unit converter: convert length, weight, temperature, volume, speed, pressure, and area values between metric and imperial. Free, private, runs locally.