Converters
Unit and currency conversions with tables and formulas.
- No sign-up
- No watermark
- Files stay on your device
- 46 tools in one place

Photo: Charlotte Noelle / Unsplash
Most used
Most popular
- CM to inchesPopularType a length in centimeters to get inches as a decimal, as a fraction you can find on a tape…
- KG to lbsPopularConvert kilograms to pounds for body weight, luggage, gym plates or shipping.
- MM to inchesPopularConvert millimeters to inches as a decimal and as the nearest fraction, handy for drill bits…
- Celsius to FahrenheitConvert between °C, °F and kelvin in both directions.
- Currency converterConvert between the US dollar, euro, British pound, Canadian dollar, Mexican peso, Japanese yen…
- Fahrenheit to CelsiusConvert a temperature from Fahrenheit to Celsius for weather, cooking, fevers or science…
All other tools
40 more tools, A to Z.
- Bike size calculatorEnter your height and inseam to get the right frame size for a road, mountain, hybrid or city…
- Binary to decimalEnter a binary number and get its decimal value, with a step-by-step table showing the place…
- Binary to hexEnter a binary number and get its hexadecimal form.
- Bra size calculatorMeasure your underbust and bust in inches to find your bra size in US, UK, EU, French and…
- Celsius to KelvinConvert between Celsius, kelvin and Fahrenheit in any direction.
- Clothing size converterConvert women's and men's clothing sizes between US, UK, EU, Italian, French and letter sizes…
- Cups to gramsTurn US cups, tablespoons, teaspoons and fluid ounces into grams and milliliters for the…
- Decimal to binaryEnter a whole number and get its binary form, with the repeated division by 2 shown step by…
- Decimal to hexEnter a whole number and get its hexadecimal form, with the division by 16 shown step by step…
- DMS to decimal degreesConvert GPS coordinates and angles between degrees-minutes-seconds and decimal degrees, with…
- Euro to dollarConvert euros to US dollars, or dollars to euros with one click, using the official daily…
- Exchange rate markup calculatorEnter what you paid or received in a currency conversion, and see the markup over the…
- Feet to metersConvert feet to meters (and back), enter heights as feet and inches, and switch to the area tab…
- Gallons to litersConvert US gallons, UK (imperial) gallons, quarts, pints and fluid ounces to liters and…
- Grams to ouncesConvert grams to ounces for recipes, postage, food labels or precious metals.
- Height converterEnter your height as feet and inches (like 5′10″) or in centimeters and get every format at…
- Hex to binaryEnter a hex number and get its binary form.
- Hex to decimalEnter a hexadecimal number and get its decimal value, with each digit's place value (a power of…
- Historical exchange ratesPick a date and two currencies to get the official European Central Bank reference rate for…
- Hours to minutesConvert between milliseconds, seconds, minutes, hours, days, weeks, months and years, and…
- Inches to cmConvert inches to centimeters (and back) with the exact factor of 2.54, see the result in mm, m…
- Inches to mmConvert inches to millimeters and back with the exact 25.4 factor, look up fractional inches in…
- Km to milesConvert kilometers to miles and back, plus speed (km/h to mph) and running pace (minutes per km…
- KM/H to mphConvert kilometers per hour to miles per hour for driving abroad, cycling, running or weather…
- kW to hp converterConvert kilowatts to horsepower and back, including metric horsepower (PS) used on European car…
- Lbs to kgConvert pounds to kilograms and kilograms to pounds using the exact definition of the pound…
- Liters to gallonsConvert liters to gallons for fuel, water tanks, aquariums or recipes.
- Meters to feetConvert meters to feet for room sizes, ceiling heights, building plans or a person's height…
- Miles to kmConvert miles to kilometers for running, driving, cycling or travel planning.
- Mph to km/hConvert miles per hour to kilometers per hour and back, with meters per second and knots shown…
- Number base converterType a number in binary, octal, decimal, hex or any base up to 36 and see it in every common…
- Ounces to gramsConvert ounces to grams (and back) for cooking, shipping and postage, switch to fluid ounces…
- Ring size chartConvert ring sizes between US, UK, EU and Japan, or find yours from a ring's inside diameter.
- Roman numeral converterTurn any number from 1 to 3,999 into Roman numerals, or read a Roman numeral back as a number.
- Shoe size converterConvert women's, men's and kids' shoe sizes between US, UK and EU, or start from your foot…
- Stone to kgConvert stone to kilograms and pounds, or kilograms back to stone.
- Thread size chartLook up UNC/UNF, metric and BSP threads: pitch, diameters and tap drill sizes.
- TV size calculatorSee how wide and tall a TV is from its diagonal, how far to sit from it, which size suits your…
- Unit converterConvert between US customary and metric units in one place: length, weight, volume, area…
- Yards to metersConvert yards to meters (and back), with feet, inches, centimeters, kilometers and miles shown…
Recommended
Related categories
Calculators
101 tools
Math, money, home and building calculators with formulas and worked examples, so you see how the answer was reached.
Explore →Pregnancy & baby
21 tools
Pregnancy and baby tools built on official guidance (WHO, CDC, ACOG, NHS), with sources listed on every page.
Explore →People also use
- Merge PDFCombine several PDFs and images into a single PDF.
- JPG to PDFPut one or many images into a single PDF.
- PDF to JPGSave each PDF page as a JPG image.
- Reverse image searchFind where an image comes from, spot fake profiles and locate higher-resolution copies.
- Meme generatorMake a meme from any picture: add bold top and bottom text with the classic outline, adjust the…
- MP3 converterTurn almost any audio or video file into an MP3: drop the files, pick a quality, and download.
- Password generatorCreate random, hard-to-guess passwords up to 64 characters long.
- Online calculatorA simple, fast calculator that works with your mouse, touchscreen or keyboard.


