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Specific Gravity ↔ Plato Converter

Convert between Specific Gravity (SG) and Plato/Brix measurements for brewing calculations.

Enter value in °P (Degrees Plato)

Quick Reference

SGPlato
1.04010.0°P
1.04812.0°P
1.05613.8°P
SGPlato
1.06415.7°P
1.07217.5°P
1.08019.3°P

About the Conversion

Specific Gravity (SG) and Plato/Brix are two different ways to measure the sugar content in wort. SG measures the density relative to water, while Plato measures the percentage of sugar by weight.

Key Points:

  • Plato and Brix are functionally equivalent for brewing purposes
  • Specific Gravity of 1.000 equals pure water (0°P)
  • 1 degree Plato = 1% sugar by weight in solution
  • These conversions assume no alcohol present (pre-fermentation readings)
  • For fermented beer, alcohol affects the readings and requires correction

Common Uses:

  • Converting between hydrometer (SG) and refractometer (Brix/Plato) readings
  • Understanding recipes that use different measurement systems
  • Calculating extract efficiency and sugar content