Temperature Corrections

This page provides a calculator for correcting specific gravity, pH, or volume measurements based on temperature. There's also a conversion between specific gravity and degrees Plato, thrown in for free as a special bonus.

Units:

Input Units: metric or U.S. customary (e.g. Fahrenheit, gallons)

Corrections:

	Measured Value	Measured Temperature		Calibration Temperature	Corrected Value
SG:	at	X	,  when at	X  =
pH:	at	X	,  when at	X  =
volume:	U  at	X	,  when at	X  =

Conversions:

SG:

=

°Plato

For Debugging, or "Not Yet Ready For Prime Time":

R.corr (ref 68°F): measured	%	at temperature	X	, actual =	%
A.corr (ref X): measured	%	at temperature	X	, actual =	%
W : %,  B : X −	Δ : X =	H : X,	V : %

The specific-gravity correction comes from an article by M. L. Hall in the Summer 1995 edition of Zymurgy.
The pH correction comes from my blog post Some Observations of Mash and Wort pH.
The volume conversion comes from a NIST publication by F. E. Jones and G. L. Harris (vol. 97, no. 3, 1992).
The conversion between SG and °Plato comes from Jean De Clerck's A Textbook of Brewing (1957), published in Beer and Brewing.