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ABV Calculator (Brewing) — Free Online Tool

Alcohol by volume from OG and FG readings

Calculate ABV from original and final gravity. For home brewers, meaderies, cider makers.

Alcohol by Volume (ABV)
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ABV calculator for home brewers

Calculate alcohol by volume from OG + FG readings. Beer, cider, wine, mead.

How to use this tool

  1. 1

    Record Original Gravity

    OG before fermentation (e.g., 1.055).

  2. 2

    Record Final Gravity

    FG after fermentation complete (e.g., 1.012).

  3. 3

    See ABV

    Alcohol by volume percentage + attenuation.

Frequently Asked Questions

Which formula is used?
Two options: simple (ABV = (OG - FG) × 131.25) and accurate (Alternative formula good up to 12% ABV).
Typical gravities
OG: Light beer 1.035-1.045, IPA 1.055-1.075, imperial 1.080+. FG: Dry beer 1.005-1.010, sweet 1.015+.

Key Takeaways

  • ABV Calculator (Brewing) is a free, browser-based calculator tool — alcohol by volume from og and fg readings.
  • No signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use ABV Calculator (Brewing)

  1. Open the tool: Launch ABV Calculator (Brewing) on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

ABV Calculator (Brewing) — Quick Facts

Price
Free — no limits, no watermarks, no paywalls
Privacy
100% browser-based — no data is sent to any server
Platform
Any modern browser on desktop, tablet, or mobile
Category
Calculator Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FeatureDetails
ToolABV Calculator (Brewing)
CategoryCalculator
Signup RequiredNo
File UploadNone — processed in browser
Mobile SupportFully responsive
CostFree forever

Why Use ABV Calculator (Brewing)?

You should try ABV Calculator (Brewing) for a quick, private way to alcohol by volume from og and fg readings. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.