Unit Converter
Convert length, weight, temperature, and time between all common units — instantly.
Free Converters
Convert between file formats and data types online — CSV, JSON, XML, images, PDFs, and more. Most conversions run in your browser instantly.
Available Tools
Length Converter
Convert between mm, cm, m, km, inches, feet, yards, miles, and nautical miles instantly.
Weight Converter
Convert between mg, g, kg, metric tons, ounces, pounds, stone, and US tons instantly.
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, and Rankine with formula display.
Time Converter
Convert between nanoseconds, milliseconds, seconds, minutes, hours, days, weeks, months, and years.
Time Zone Converter
Convert date and time between 45+ world time zones instantly. See UTC offsets, DST-aware results, and a live world clock.
Physics Unit Converter
Convert physics units: energy (J, kJ, kWh, eV, BTU), force (N, kN, lbf), power (W, kW, hp), pressure (Pa, bar, atm, PSI), and velocity (m/s, km/h, mph).
Scientific Notation Converter
Convert numbers between decimal, scientific notation, engineering notation, E-notation, and SI prefix form. Choose significant figures.
FAQ
Are these converters free?
Yes, every converter is free to use with no signup or limits.
Is my data safe?
For browser-based converters (JSON, CSV, XML, most image formats), your files never leave your device. PDF converters that need server processing delete files immediately after conversion.
What conversion formats are supported?
Data formats: CSV, JSON, XML. Images: JPEG, PNG, WebP, AVIF, GIF, SVG, HEIC. Documents: PDF to Word, PDF to Excel, PDF to JPG, Word to PDF, Image to PDF.