Last updated: March 2, 2026 by Dr. David Park

How to Calculate Beer Brewing Values

Formula

Original gravity (OG) predicts the amount of fermentable sugar available. The difference between OG and final gravity (FG) determines the alcohol content.

IBU (International Bitterness Units) measures hop bitterness. A pale ale is typically 30-50 IBU while an IPA ranges from 40-70+.

Common use cases:

  • Homebrewing recipe design
  • Grain bill calculation
  • Hop bitterness targeting

Frequently Asked Questions

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Dr. David Park

Applied Mathematician, PhD Mathematics

David holds a PhD in Applied Mathematics from MIT. He has published research on numerical methods and computational algorithms used in engineering and scientific calculators.

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