Your Ultimate Free Online Unit Conversion Tool
Convert between different units of measurement with precision and ease. From length and weight to temperature and currency - we've got you covered.
Choose from our comprehensive collection of unit conversion tools. Each tool is designed for accuracy and ease of use.
Perfect for physics, chemistry, and math homework. Convert units quickly and accurately.
Essential for calculations in mechanical, civil, and electrical engineering projects.
Convert currencies, temperatures, and measurements for international travel.
Convert recipes between metric and imperial measurements with ease.
Convert between meters, feet, inches, miles, and more length units.
Convert NowConvert between kilograms, pounds, ounces, tons, and other weight units.
Convert NowConvert between Celsius, Fahrenheit, Kelvin, and other temperature scales.
Convert NowConvert between square meters, acres, hectares, and other area units.
Convert NowConvert between liters, gallons, cubic meters, and other volume units.
Convert NowConvert between seconds, minutes, hours, days, and other time units.
Convert NowConvert between different currencies with real-time exchange rates.
Convert NowConvert between km/h, mph, knots, and other speed units.
Convert NowInstant conversions with no loading times. Get results immediately.
Precise calculations using the most up-to-date conversion factors.
Works perfectly on all devices - desktop, tablet, and mobile.
Physics Student
"Unit Master saved me hours on my physics homework. The interface is intuitive and the conversions are always accurate."
Software Engineer
"As an engineer working with international teams, Unit Master is invaluable for quick unit conversions. No more manual calculations!"
Travel Blogger
"Perfect for travel! Converting currencies and temperatures has never been easier. The mobile app-like interface is fantastic."
Yes! We use the most up-to-date conversion factors and formulas from reliable scientific sources. Our calculations are precise and trustworthy.
Absolutely! Unit Master is completely free to use with no hidden fees, no premium features, and no advertisements. Forever free.
No personal data collection. We don't track users, store information, or use cookies. Your privacy is completely protected.
Currency rates are updated regularly. For critical financial decisions, we recommend verifying with official banking sources.
Currently, Unit Master requires an internet connection. We're working on an offline version for future release.
Use the contact form on our Contact page or email us directly. We appreciate your help in improving Unit Master!