Free Online Converters – Units, Numbers to Words & More

Spell out any number or money amount in words using lakh and crore or million and billion style. Cheque mode ends the line with “only”, and the words can be written in five languages.

Switch between units of length, weight, temperature, area, volume, speed, time and digital storage in one unit converter. Each pair shows its formula plus a quick table of common values.

Change kg to lbs or pounds back to kilograms using the exact international factor of 0.45359237. A quick table covers typical body and luggage weights, and stone, ounces and tola sit in the same list.

Turn cm to inches, or inches to centimetres, with the exact 2.54 factor and the formula displayed under the answer. Heights can be typed or shown in feet and inches as well.

Convert Celsius to Fahrenheit and back with the formula shown for each direction, handy for checking homework. A reference table lists body, fever, weather and cooking temperatures, and Kelvin is included too.

Convert feet to meters, including heights typed as feet plus inches, using the exact 0.3048 factor. Room and plot sizes can be switched to square feet, square meters, acres or hectares.

Go from km to miles, or miles to kilometres, using the international mile of 1.609344 km. The quick table lists race distances like 5K, 10K and the marathon, and speeds convert between km/h and mph.

Turn pounds into kilograms with the exact 0.45359237 factor, starting from the pound side so US weights need no setup. A quick list covers body, gym and luggage weights from 1 lb to 250 lb.

Convert inches to cm using the exact 2.54 definition, with decimal inches accepted for screen sizes such as 13.3 or 6.1. Jeans, luggage and paper sizes are worked through as examples.

Change Fahrenheit to Celsius and see each step of the subtract-32, times-5/9 formula under the answer. The reference list runs from freezer and fever temperatures up to common oven settings.

Switch miles to km with the international mile of 1.609344 km, with race distances from 5K to the marathon listed ready-made. Speed limits in mph convert with the same factor.

Go from meters to feet with the exact 0.3048 definition, or show the answer as feet plus inches for a height. Room sizes, pool lengths and mountain altitudes are given as worked examples.

Type a height in cm and read it as feet and inches, the way it is said in the US and UK. A height chart from 150 cm to 200 cm sits on the page, and the reverse direction takes two boxes.

Translate numbers into Roman numerals and read Roman numerals back as numbers, both at the same time. Each result is broken down step by step, and invalid forms like IIII or IC get a clear correction.

Convert a value between binary, octal, decimal and hexadecimal simultaneously, with no rounding on very large numbers. Bits can be grouped into nibbles or bytes, and two's complement is shown at 8 to 64 bits.

Compare a time across cities and time zones with a converter that accounts for daylight saving on the date you pick. A meeting planner colours working hours and night for every city in your list.

Export an Excel workbook to CSV, picking a single sheet or bundling every sheet into one ZIP. Long account numbers keep all their digits, and comma, semicolon or tab separators are available.

Turn CSV into JSON as an array of objects keyed by the header row, or plain arrays when there is no header. Numbers and booleans can be typed automatically, and row errors point to the line to fix.

Convert a Word document in DOCX format to PDF in your browser, keeping headings, lists, tables and pictures. Choose A4 or US Letter with Word-style margins, and the PDF contains real, searchable text.