Converter Tools

Convert units, currencies, number systems, Roman numerals and Bangla fonts.

• Unit Converter — Convert length, weight, temperature, area, volume, speed, time, data, pressure and energy units on one page.
• Length Converter — Convert between millimetres, centimetres, metres, kilometres, inches, feet, yards, miles and nautical miles.
• Weight Converter — Convert kilograms, grams, pounds, ounces, stones, tonnes, carats and grains with exact international factors.
• Temperature Converter — Convert temperatures between Celsius, Fahrenheit, Kelvin and Rankine using the correct offset formulas.
• Volume Converter — Convert litres, millilitres, cubic metres, US and UK gallons, pints, cups, fluid ounces and spoons accurately.
• Speed Converter — Convert speed between km/h, mph, m/s, knots, feet per second and Mach, with the sea-level Mach reference shown.
• Currency Converter — Convert money between world currencies using daily reference exchange rates, or enter your own rate when offline.
• Pixel Converter — Convert px to pt, em, rem, %, inches, cm and mm at any DPI, with adjustable root and parent font sizes.
• Number to Words Converter — Write numbers in words in English (million or lakh/crore) or Bangla, with Taka, Dollar and other currency wording.
• Roman Numeral Converter — Convert numbers 1–3999 to Roman numerals and back, with strict validation that rejects forms like IIII or VX.
• Binary Converter — Convert binary numbers to decimal, hex and octal exactly, with nibble and byte grouping and two's complement.
• Decimal Converter — Convert decimal integers to binary, octal and hexadecimal exactly, including negative and very large numbers.
• Hex Converter — Convert hexadecimal to decimal, binary and octal exactly, with 0x prefixes, upper or lower case and bit grouping.
• Octal Converter — Convert octal numbers to decimal, binary and hexadecimal exactly — handy for Unix file permissions like 755.
• Bangla Unicode to Bijoy Converter — Convert Unicode Bangla (Avro, web text) to Bijoy ANSI for SutonnyMJ fonts, with correct kar and reph ordering.
• Bijoy to Unicode Converter — Convert Bijoy (SutonnyMJ) ANSI Bangla text to Unicode for websites, email and social media, fixing kar order.