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Ubify Financial Advisory Board
FINANCIAL ANALYSTS & CPA REVIEWERS
About This Tool
BAC & Sobriety Timeline Sizer is an interactive online calculator on ubifytools.com. Calculate blood alcohol concentration and metabolic clearance hours using the Widmark formula.
Fast, 100% free, private client-side processing directly in your browser with zero server data storage.
How to Use
- 1
Enter the number of standard drinks consumed (12oz beer, 5oz wine, or 1.5oz 80-proof spirit).
- 2
Enter the elapsed hours spent drinking.
- 3
Input your current body weight in pounds.
- 4
Select biological sex distribution factor (Male r=0.68, Female r=0.55).
- 5
Review your estimated peak BAC, legal driving threshold comparison, and hours required to reach complete 0.00% sobriety.
Frequently Asked Questions
How does the Widmark formula calculate blood alcohol concentration?
The Widmark formula computes BAC by dividing total alcohol ingested in grams (14g per standard drink) by body weight in grams multiplied by a biological gender distribution constant (r=0.68 for males, 0.55 for females), then subtracting a standard metabolic elimination burn rate of 0.015% BAC per hour.
Can this calculator prove that I am legally sober to drive?
No. This calculator is a mathematical estimation tool for educational harm reduction only. Actual BAC and physiological impairment depend on stomach contents, liver enzyme genetics (ADH and ALDH variants), hydration, and medications. Never drink and drive based on an online estimate.
Are my drinks or weight entries logged on a server?
No. All calculations run strictly in your web browser memory with zero tracking or server transit.