About usefullpage.com

usefullpage.com is a free collection of engineering calculators and converters built for industrial professionals. All tools run entirely in your browser — no data is ever sent to any server.

Who it is for

PLC programmers, instrumentation and control engineers, electricians, HVAC technicians, and engineering students who need fast, accurate calculations without the clutter.

Why it exists

Most online calculators are cluttered, ad-heavy, or require an account. usefullpage.com offers clean, fast tools that work on any device — phone, tablet, or desktop.

Phase 2 tools coming

We are working on: Base64 encoder/decoder, JSON formatter, Hash generator, Resistor color code calculator, and IP protection rating lookup.

Contact

Questions or suggestions? Email us at contact@usefullpage.com