Homebrewing Calculators

🍺 Homebrewing Calculators

Practical tools for calculating alcohol content, bitterness, carbonation, brewing water, and recipe parameters.

🍺 ABV Calculator

Calculate the approximate alcohol by volume using original gravity and final gravity.

🌿 IBU Calculator

Estimate bitterness using the Tinseth method for a single hop addition.

Note: Actual bitterness depends on several factors, so this is an estimate.

🍾 Priming Sugar Calculator

Estimate the amount of priming sugar needed for bottling based on beer volume, temperature, and target CO₂.

Important: Bottle only when fermentation is complete and FG is stable. Over-carbonation can be dangerous.

💧 Strike Water Calculator

Estimate the amount and temperature of strike water needed to reach your target mash temperature.

The formula uses an approximate grain heat capacity of 0.41. Heat loss, vessel type, and brewing setup may require adjustment.

⚗️ Brewhouse Efficiency Calculator

Use the average grain potential expressed in PPG (points per pound per gallon).

For a more precise result, enter the PPG for each grain and calculate them individually; this is a quick estimate.

📊 OG / FG Calculator

Calculate the expected FG from OG and the yeast apparent attenuation percentage.

📐 Recipe Scaling Calculator

Enter the original and new batch volumes. The calculator gives you a scaling factor to multiply each ingredient quantity by.

Example: If a recipe calls for 4 kg of grain and the scaling factor is 1.50, the new amount is 6 kg.