About ConvertAll

ConvertAll is a free, fast, and accurate online unit converter built for everyone — students, engineers, cooks, travellers, and anyone who needs a quick conversion without the hassle.

What We Do

ConvertAll lets you instantly convert between hundreds of units across nine categories: weight, length, temperature, volume, speed, area, pressure, power, and digital data storage.

Every conversion runs entirely in your browser — no server round-trips, no account required, and no personal data collected beyond standard analytics. Results are calculated using exact or high-precision factors to minimise floating-point errors.

Who It's For

ConvertAll is designed to be useful for:

  • Students checking homework or lab results
  • Engineers and scientists working across unit systems
  • Home cooks and bakers converting recipes from US to metric
  • Travellers who need to know miles vs. kilometres or Fahrenheit vs. Celsius
  • Developers and data professionals dealing with storage units (KB, MB, GB, TB)
  • Anyone who finds themselves Googling unit conversions every day

Our Mission

Our mission is simple: make unit conversion effortless and reliable for everyone, everywhere, for free.

We believe that a tool this fundamental should not require a login, bombard you with pop-ups, or sell your data. ConvertAll will always be free, ad-supported in a non-intrusive way, and built with user experience as the top priority.

  • Free forever — no subscriptions, no paywalls
  • Privacy-respecting — we collect only anonymous usage analytics
  • Fast and lightweight — loads in under a second on any connection
  • Accurate — results rounded to 6 significant decimal places
  • Works offline — once loaded, the converter works without internet

Contact Us

Have a question, spotted an error in a conversion, or want to suggest a new category? We'd love to hear from you.

Email: admin@convertall.co