SG/Plato Converter

Specific gravity (S.G.) is the density of a substance compared to that of water. A precise formula for S.G. is:

S.G. = [(°Plato) / (258.6 – (°Plato/258.2 x 227.1))] +1


Degrees plato is the weight of the extract in a 100g solution at 64 degrees Fahrenheit. A precise formula for degrees plato is:

°Plato = [(S.G.)2 – (205.347)] + (668.7183)(S.G.) – 463.371