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BAC Calculator

Explore a simplified Widmark blood-alcohol estimate from explicit absorption and elimination assumptions.

How It Works

Estimated BAC%=max(0,alcohol grams/(body weight kg×distribution factor×10)−elimination rate×hours).

Assumes the entered dose is fully absorbed at model time zero; real absorption, body-water distribution and elimination vary substantially.

Scope and Limitations

  • Never use this estimate to decide whether to drive, operate machinery, meet a legal limit or determine that alcohol has cleared. It is not a breath or blood test.

Reference Sources

FAQs

How does this calculator work?

Estimated BAC%=max(0,alcohol grams/(body weight kg×distribution factor×10)−elimination rate×hours).

What assumptions should I check?

Never use this estimate to decide whether to drive, operate machinery, meet a legal limit or determine that alcohol has cleared. It is not a breath or blood test. Assumes the entered dose is fully absorbed at model time zero; real absorption, body-water distribution and elimination vary substantially.