In many applications, the density of hydrogen under "extreme" conditions must be calculated. This calculator enables determining the mass or density of hydrogen under pressure.
The following tool processes the inputs "Temperature", "Pressure" and "Volume". Real gas conditions are applied, so accurate values can be obtained even at high pressures.
The nonlinear density curve is, for example, the reason why a 700-bar vehicle can hold only about 70% more hydrogen than a 350-bar vehicle—even though the pressure is twice as high.
All online tools have been programmed to the best of my knowledge; however, errors cannot be entirely excluded. Any use is therefore at your own risk. Any legal or financial claims are excluded.
More information on the chemical properties of hydrogen: https://www.chemie.de/lexikon/Wasserstoff.html
More info on determining the produced mass during electrolysis: https://hydrogentools.de/stromstaerke-und-spannung-der-elektrolyse-wasserstoff/
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