BAC estimator
Widmark-formula estimate — for educational curiosity only.
Important disclaimer — please read before using this tool IMPORTANT: This BAC estimate is a rough mathematical approximation based on the Widmark formula. It does NOT account for food consumption, medication, individual metabolism, tolerance, liver function, hydration, or many other factors that profoundly affect impairment. BAC is not a measure of fitness to operate any vehicle. Never drive or operate heavy machinery after consuming alcohol. If you have been drinking, arrange alternative transport. This tool is for educational curiosity only — it provides no legal or medical advice.
1 std drink = 0.6 fl oz pure alcohol (12 oz beer / 5 oz wine / 1.5 oz 80-proof spirit)
BatchPour tools produce estimates for planning purposes only. Actual dilution, ABV, and ingredient yields vary by technique, ice temperature, and produce. Always taste and adjust. Drink responsibly.
Is this BAC calculator accurate?
No BAC calculator is accurate. The Widmark formula is a mathematical model that ignores food consumption, medication, individual metabolism, liver function, hydration, and many other factors. It is for educational curiosity only.
Can I use this to decide if it is safe to drive?
Absolutely not. BAC is not a measure of driving fitness. Impairment begins well before legal limits. If you have been drinking, arrange alternative transport.