Hydrometer Temperature Correction Calculator

Correct your hydrometer reading for the temperature of your wort or beer. Enter your reading, choose °C or °F, and check your hydrometer's calibration temperature.

Please note: This calculator gives an approximate correction for standard hydrometer readings. Check the calibration temperature printed on your hydrometer. For the most reliable results, cool hot samples before taking a reading.

Brewing tip: OG is measured before fermentation, FG after fermentation, and SG can describe any gravity reading.