Industry Guide
Home Brewing Measurements Guide
Essential volume, weight, and temperature conversions for home brewing beer, wine, and mead.
Last updated: 2026-03-15
Brewing Volume Conversions
| Unit | US Gallons | Liters | 12 oz Bottles |
|---|---|---|---|
| 1 gallon batch | 1 | 3.785 | ~10 |
| 3 gallon batch | 3 | 11.36 | ~30 |
| 5 gallon batch | 5 | 18.93 | ~50 |
| 10 gallon batch | 10 | 37.85 | ~100 |
| 1/2 barrel (keg) | 15.5 | 58.67 | ~165 |
| 1 barrel | 31 | 117.35 | ~330 |
Key Brewing Temperatures
| Process | °F | °C |
|---|---|---|
| Ale fermentation | 60-72 | 16-22 |
| Lager fermentation | 45-55 | 7-13 |
| Mash (dry/light body) | 148-152 | 64-67 |
| Mash (full body) | 154-158 | 68-70 |
| Mash out | 168 | 76 |
| Boil | 212 | 100 |
| Pasteurization | 161 | 72 |
Grain and Extract Weights
| Ingredient | 1 lb (grams) | Typical per 5 gal |
|---|---|---|
| Base malt | 454 g | 8-12 lbs (3.6-5.4 kg) |
| Specialty malt | 454 g | 0.5-2 lbs (227-907 g) |
| Dry malt extract | 454 g | 6-9 lbs (2.7-4.1 kg) |
| Hops | 28.35 g/oz | 1-3 oz (28-85 g) |
| Priming sugar | 454 g | 3/4 cup (~150 g) |
Gravity and ABV
ABV = (OG − FG) × 131.25
Where OG = original gravity and FG = final gravity. Example: OG 1.050, FG 1.010 gives (0.040) × 131.25 = 5.25% ABV.
Use our volume converter and temperature converter for brewing calculations.