If I want to convert my specific gravity reading from one temperature to an equivalent specific gravity at 60F how do I do it?
Can you give me a correction factor for this case?
jsled's answer is for when you are using a hydrometer calibrated to 59 degrees F.
The formula to correct a reading for any hydrometer calibration temperature is as follows:
cg = corrected gravity
mg = measured gravity
tr = temperature at time of reading
tc = calibration temperature of hydrometer
cg = mg * ((1.00130346 - 0.000134722124 * tr + 0.00000204052596 * tr2 - 0.00000000232820948 * tr3) / (1.00130346 - 0.000134722124 * tc + 0.00000204052596 * tc2 - 0.00000000232820948 * tc3))