Converters

mL to Cups Converter

Convert millilitres to US cups using the exact factor 1 cup = 236.5882365 mL. A 500 mL bottle holds 2.113 cups; the working is shown with each result.

mL to oz Converter

Convert milliliters to US fluid ounces with the exact factor 1 fl oz = 29.5735 mL. A 100 mL bottle holds 3.38 fl oz; the working is shown.

oz to mL Converter

Convert US fluid ounces to milliliters with the exact NIST factor 29.5735295625 mL per fl oz, with the multiplication shown for each value you enter.

Liters to Gallons Converter

Convert liters to US gallons with the exact factor 1 L = 0.264172 gal, taken from the legal definition of the gallon as 231 cubic inches.

Gallons to Liters Converter

Convert US gallons to liters with the exact factor 1 gal = 3.785411784 L, defined from 231 cubic inches. Handy for fuel, aquariums and recipes.

Pounds to Kilograms Converter

Turn pounds into kilograms using the defined factor 0.45359237 kg per pound. A 50 lb suitcase works out to 22.68 kg; the multiplication is shown.

Kilograms to Pounds Converter

Convert kilograms to pounds with the exact NIST factor 1 lb = 0.45359237 kg, so 1 kg = 2.20462 lb. Shows the working for body weight, luggage and recipes.

oz to Grams Converter

Convert avoirdupois ounces to grams with the exact factor 1 oz = 28.349523125 g, a conversion table and the working shown for kitchen and postal weights.

lbs to kg Converter

Convert pounds to kilograms with the exact legal factor 0.45359237, the working shown and a quick table. 150 lb comes out at 68.04 kg.

kg to lbs Converter

Convert kilograms to pounds with the exact NIST factor 1 lb = 0.45359237 kg, so 1 kg is 2.20462 lb. Shows the working and a quick table.

cm to Inches Converter

Convert centimetres to inches by dividing by the exact factor 2.54, with the working shown. A 30 cm ruler comes to 11.81 inches.

Inches to cm Converter

Convert inches to centimetres with the exact factor 1 in = 2.54 cm, the multiplication shown for each value. Handy for screens, tape measures and sewing.

Feet to Meters Converter

Convert feet to meters using the exact international factor 1 ft = 0.3048 m, with the multiplication shown. A 10 ft ceiling comes out at 3.048 m.

Meters to Feet Converter

Convert meters to feet using the exact international foot of 0.3048 m, so one meter equals 3.28084 ft. Shows the division used for each value.

km to Miles Converter

Convert kilometres to miles using the exact definition 1 mile = 1.609344 km. A 10 km run is 6.2137 miles; the working is shown with every result.

XML Encoder

Escape ampersands, angle brackets and quotes as the five XML entities, with an option to write accented letters as hex references like é.

XML Decoder

Turn <, &, " and numeric references like © or € back into plain characters, with a count of every entity that was replaced.

HTML Decoder

Decode HTML entities back to plain characters: named ones like é, decimal é and hex é, with a table of every reference that was replaced.

URL Encode Decode

Percent-encode text or a whole URL, or decode %XX escapes back to readable text. Handles UTF-8, so é becomes %C3%A9, with optional + for spaces.