About PhaseGauge

An instrument, not a funnel

PhaseGauge is a fast, local-first water and steam property reference built for engineers who want the number, its units, and its provenance without an account wall.

Why it exists

Most online steam tools make one of two tradeoffs: useful data behind friction, or immediate results without enough evidence to trust them. PhaseGauge treats verification as product functionality. The calculator is the homepage, its engine version is visible, generated tables share its calculation boundary, and the measured fixture results are public.

Operating principles

Start with the calculator, read the methodology and verification, or use the generated steam tables.