Practical utilities

Tools

Small, focused tools for engineering, study, coordination, and everyday use. Calculators are for study and checking, not operational decisions.

/ 01

Engineering

Unit-aware helpers for coursework and quick checks.

01Unit converterConvert SI, imperial, and oilfield units as you type.02Engineering calculatorsPipe pressure loss, hydrostatics, ideal gas, NPV, and payback with formulas shown.

/ 02

Study and coordination

Grades, meeting times, and shareable codes.

03Grade calculatorCredit-weighted results for Norwegian letter grades or Tec scores.04World meeting timeLive clocks and workable meeting hours across four zones.05QR generatorText, URL, and Wi-Fi codes generated locally in your browser.

/ 03

Personal

Day-to-day utilities and reading.

06Workout trackerA local-first workout logger with a five-day training program.Saved in this browser 07Daily briefA compact archive covering technology, finance, politics, and energy.08DashboardCompact shortcuts to the personal utilities on this site.

Looking for Spanish?Open Learn → Spanish