Milligrams per 100 mL to percent BAC
Type a value in mg/100 mL to get it in % BAC instantly.
8×10⁻⁵% BAC
Nothing on our list is smaller: roughly one drink is 250× higher. Information only: legal limits and testing rules differ by country.
Convert the other way: % BAC to mg/100 mL
What it means
Where does that sit?
Information only, and never a defense. Breath conversions use the standard 2100:1 ratio, which varies between people and over time.
The math
How to convert mg/100 mL to % BAC
To convert milligrams per 100 mL to percent BAC, multiply by 0.001.
Example: 0.08 mg/100 mL × 0.001 = 8×10⁻⁵ % BAC.
In the other direction, 1 % BAC = 1,000 mg/100 mL.
Every unit
Your reading in every unit
Tables
mg/100 mL to % BAC conversion table
| mg/100 mL | % BAC |
|---|---|
| 0.01 mg/100 mL | 1×10⁻⁵ % BAC |
| 0.02 mg/100 mL | 2×10⁻⁵ % BAC |
| 0.03 mg/100 mL | 3×10⁻⁵ % BAC |
| 0.05 mg/100 mL | 5×10⁻⁵ % BAC |
| 0.08 mg/100 mL | 8×10⁻⁵ % BAC |
| 0.1 mg/100 mL | 0.0001 % BAC |
| 0.12 mg/100 mL | 0.00012 % BAC |
| 0.15 mg/100 mL | 0.00015 % BAC |
| 0.2 mg/100 mL | 0.0002 % BAC |
| 0.3 mg/100 mL | 0.0003 % BAC |
| 0.4 mg/100 mL | 0.0004 % BAC |
% BAC to mg/100 mL conversion table
| % BAC | mg/100 mL |
|---|---|
| 0.01 % BAC | 10 mg/100 mL |
| 0.02 % BAC | 20 mg/100 mL |
| 0.03 % BAC | 30 mg/100 mL |
| 0.05 % BAC | 50 mg/100 mL |
| 0.08 % BAC | 80 mg/100 mL |
| 0.1 % BAC | 100 mg/100 mL |
| 0.12 % BAC | 120 mg/100 mL |
| 0.15 % BAC | 150 mg/100 mL |
| 0.2 % BAC | 200 mg/100 mL |
| 0.3 % BAC | 300 mg/100 mL |
| 0.4 % BAC | 400 mg/100 mL |
Quick answers
Quick answers
- How many % BAC is 1 mg/100 mL?
- 1 mg/100 mL is 0.001 % BAC.
- How many % BAC is 10 mg/100 mL?
- 10 mg/100 mL is 0.01 % BAC.
- How many % BAC is 0.08 mg/100 mL?
- 0.08 mg/100 mL is 8×10⁻⁵ % BAC.
The units
About these units
Milligrams per 100 mL (mg/100 mL)
The UK legal unit, where the drink-driving limit is 80.
Percent BAC (% BAC)
The US measure: grams of alcohol per 100 mL of blood. The limit is 0.08.
Keep going