BAC Chart by Weight & Gender (Free Printable) - SafeBAC

Download and print our free Blood Alcohol Concentration (BAC) charts. Quickly estimate your level based on weight and gender.

Select Sex:

Body Weight (lbs)	1 Drinks	2 Drinks	3 Drinks	4 Drinks	5 Drinks	6 Drinks	7 Drinks	8 Drinks
100	0.038%	0.075%	0.113%	0.150%	0.188%	0.225%	0.263%	0.300%
120	0.031%	0.063%	0.094%	0.125%	0.156%	0.188%	0.219%	0.250%
140	0.027%	0.054%	0.080%	0.107%	0.134%	0.161%	0.188%	0.214%
160	0.023%	0.047%	0.070%	0.094%	0.117%	0.141%	0.164%	0.188%
180	0.021%	0.042%	0.063%	0.083%	0.104%	0.125%	0.146%	0.167%
200	0.019%	0.038%	0.056%	0.075%	0.094%	0.113%	0.131%	0.150%
220	0.017%	0.034%	0.051%	0.068%	0.085%	0.102%	0.119%	0.136%
240	0.016%	0.031%	0.047%	0.063%	0.078%	0.094%	0.109%	0.125%

Important Note: Values are approximate estimates. '1 Drink' = 1.5 oz spirits, 5 oz wine, or 12 oz beer. Choose your sex to see the correct estimates.

Low Risk (<0.05%)

Driving Impaired (0.05-0.08%)

Legally Intoxicated (0.08%+) (>0.08%)

Need a more precise estimate?

Charts are static approximations. Our calculator customizes the result for your exact weight, time, and drinks.

Use the Calculator

How to read the BAC chart

First, select your biological sex using the toggle above the chart. Find your approximate body weight in the left column. Then, follow the row across to the number of drinks you have consumed. The number in the box is your estimated Blood Alcohol Concentration percentage.

Why charts are less accurate than calculators

This chart assumes a standard 'one hour' timeframe and does not account for metabolism over longer periods. It provides a static snapshot. For a dynamic estimate that accounts for time, food, and metabolism, use our interactive calculator.

Using this chart for safety

This chart is a visual aid, not a breathalyzer. If your intersection puts you anywhere near 0.05% or higher, do not drive. Impairment often begins before you reach the legal limit.

BAC Chart FAQ

Yes. This page is designed to be printer-friendly. You can print it to keep in your wallet, car, or bar as a quick reference guide.

Women typically have less body water than men of the same weight. This means alcohol is less diluted in their bodies, resulting in a higher BAC for the same number of drinks.

No. This chart shows estimated peak BAC assuming the alcohol is absorbed quickly. It does not subtract the alcohol your liver eliminates over time. Use our main calculator for time-based estimates.

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