Free Homebrewing ABV Calculator

✓ Weather API: Ready

✓ Beer Styles API: Ready

⚠ Legal Data: Static Reference

Homebrewing Intelligence Platform

Professional ABV Calculator with Real-Time Weather & Style Analysis

1. Core ABV Calculation

Original Gravity (OG)

Example: 1.050

Final Gravity (FG)

Example: 1.010

Location not set

Click "Get Local Weather" above

--°C

Ambient Temp

--°C

7-Day Avg

Standard ABV

-- %

Advanced Formula

-- %

Apparent Attenuation

-- %

Calories (per 12oz)

-- kcal

2. API Intelligence Engine

B

Beer Style Analysis

Select Beer Style for Comparison -- Auto-detect from ABV -- India Pale Ale (IPA) Stout Pale Ale Pilsner Wheat Beer Saison Barleywine Sour Ale

Calculate ABV to see style analysis

⚖

Legal & Production

Batch Size (Gallons)

Enter batch size for legal analysis

🌡

Hydrometer Temperature Correction

Sample Temp (°C)

Calibration Temp (°C)

Corrected Gravity

--

3. Detailed Characteristics Engine

1. Core Alcohol Calculation Engine

• Standard Formula: Uses $(OG - FG) \times 131.25$
• Advanced Formula: Alternate scaling for high-gravity brews above 1.070 OG.
• Refractometer Correction: Integrated WCF (Wort Correction Factor) logic.
• Temperature Correction: Automatic adjustment based on ambient conditions via OpenWeatherMap API.

2. API Intelligence Features

• Beer Style Validation: Compares calculated ABV against BJCP guidelines via Open Brewery DB.
• Weather Integration: Real-time fermentation temperature warnings using OpenWeatherMap.
• Legal Compliance: Checks batch size against US federal homebrewing limits.
• Hydrometer Correction: Adjusts gravity readings based on sample temperature.

3. Professional Brewing Insights

• Yeast Performance: Attenuation analysis with strain-specific expectations.
• Style Matching: Recommendations for competition categories.
• Process Optimization: Temperature-based fermentation scheduling.
• Quality Indicators: Flags potential off-flavors from stressed fermentations.

Enhanced Homebrewing Intelligence Platform v2.0

APIs: OpenWeatherMap • Open Brewery DB • TTB Regulations

BJCP Style Guidelines Compliant

For personal homebrewing use only. Always comply with local laws and regulations.