How To Homebrew Beers, Brewing Calculator Hub
Brewing Tools and Calculators
Brewing is craft, but it is also numbers. These tools are built to take the fiddly calculations off your hands so you can brew with confidence, hit your targets, and repeat great results.
Use this page like a bench-top cheat sheet. Gravity, bitterness, mash temperatures, yeast rates, packaging volumes, priming sugar, and more, all in one place.
Quick tip: Use the ABV tools when fermentation finishes, use the IBU tool while designing your hop schedule, and use mash calculators before you even heat the kettle.
Each tool below includes a short, practical “why” so you know when to reach for it on brew day.
Beer ABV Calculator
Work out the alcohol content of your beer from original gravity and final gravity. It keeps your recipe honest, especially when you tweak sugars, malt, or top-up volumes.
- Confirm your brew landed where you intended.
- Compare batches and spot process drift.
- Sense-check “too sweet” or “too thin” beers.
- Useful for labeling and sharing recipes.
- Helps troubleshoot stuck fermentation.
Ginger Beer ABV Calculator
Ginger beer can swing wildly in strength because sugar additions are common. This tool helps you pin down your finished ABV without guesswork.
- Know the strength before you bottle.
- Balance sweetness, heat, and alcohol.
- Handle sugar-heavy recipes with confidence.
- Great for repeatable summer batches.
- Stops “surprise rocket fuel” outcomes.
Apple Cider ABV Calculator
Cider looks simple, but gravity changes fast with juice blends and sugar boosts. Use this to calculate real ABV and keep your cider in the zone.
- Track strength across different juice brands.
- Measure the impact of added dextrose or honey.
- Dial in session cider vs strong cider.
- Supports consistent carbonation planning.
- Helps you spot under-attenuation early.
IBU Bitterness Calculator
Calculate hop bitterness across multiple additions. It helps you build hop schedules that match style targets instead of guessing your bitterness.
- Design balanced Pale Ales and IPAs.
- Compare pellets vs cones and AA% changes.
- Adjust bitterness when batch size shifts.
- Catch over-bitter recipes before you brew.
- Build repeatable hop profiles year-round.
Yeast Pitch Rate Calculator
Pitch rate is the quiet engine of good beer. This tool helps you choose how much yeast to use based on gravity and batch size so fermentation stays clean.
- Reduce off-flavours from under-pitching.
- Support high gravity beers and lagers.
- Plan starters and yeast packs properly.
- Improve attenuation and fermentation speed.
- Boost consistency between batches.
Priming Sugar Calculator
Dial in carbonation with confidence. This guide and calculator helps you choose the right sugar amount for batch priming, reducing gushers and flat bottles.
- Target style-appropriate fizz levels.
- Reduce over-carbonation risk.
- Make batch priming fast and consistent.
- Useful when bottling partial volumes.
- Supports clean, repeatable packaging days.
LME to DME Extract Converter
LME and DME are not a 1:1 swap by weight. This converter keeps your target gravity steady when you change extract type because of stock, brand, or recipe rewrites.
- Protect your original gravity from drifting.
- Rewrite recipes without redoing everything.
- Handle availability changes at the shop.
- Reduce strength surprises and imbalance.
- Useful for kit tweaks and partial mash plans.
Bottling Volume Calculator
Work out exactly how many bottles you need based on the real volume in your bottling bucket. It saves you from mid-bottling chaos and half-sanitised panic.
- Know your bottle count before you start.
- Plan sanitation time and bottle prep.
- Convert to case equivalents instantly.
- Useful for partial batches and top-ups.
- Packaging day runs smoother, always.
Beer Color Converter
Translate between SRM, EBC, and Lovibond so your beer’s colour lands where you expect. Great when comparing US recipes, European specs, and malt supplier data.
- Convert recipe colour specs across regions.
- Sense-check malt choices during recipe design.
- Keep Red Ales red, not muddy brown.
- Useful for style targets and judging notes.
- Includes a visual colour reference.
Strike Water Temperature Calculator
Hit your target mash temperature on the first try. This tool accounts for grain temperature and mash thickness so you start the mash in the right zone.
- Reduce temperature chasing and re-heating.
- Improve fermentability and body control.
- Useful for cold grain and winter brewing.
- Works for thick mashes and BIAB ratios.
- Supports consistent, repeatable mash results.
Hydrometer Temperature Adjustment
Hot wort reads differently on a hydrometer. This tool corrects your reading back to calibration temperature so OG, FG, and ABV calculations stay accurate.
- Stop false low readings from warm samples.
- Protect ABV calculations from bad data.
- Useful for pre-boil checks and mash runnings.
- Helps avoid unnecessary extract additions.
- Supports better record keeping and repeatability.