Alcohol and Drugs

Blood/Breath Alcohol Concentration (BAC) calculator

alcohol

BloodAlcoholCalculator.org: This site is for entertainment and informational purposes only. The information on this site is NOT LEGAL ADVICE. Your actual blood alcohol concentration depends on a variety of additional factors, like genetic makeup, personal health, and recent food consumption. These results are rough estimates for an average person only. Do not rely on these results to drive or work. Never drink and drive.

From Wikipedia, the free encyclopedia

Blood alcohol content (BAC), also called blood alcohol concentration, blood ethanol concentration, or blood alcohol level is most commonly used as a metric of alcohol intoxication for legal or medical purposes. Blood Alcohol Content is the legal name for BAC but Blood Alcohol Concentration is sometimes used for simpler description.

Blood alcohol content is usually expressed as a percentage of ethanol in the blood in units of mass of alcohol per volume of blood or mass of alcohol per mass of blood, depending on the country. For instance, in North America a BAC of 0.1 (0.1% or one tenth of one percent) means that there are 0.10 g of alcohol for every dL of blood.

Blood Alcohol Level Chart

Progressive effects of alcohol
BAC (% by vol.)BehaviorImpairment
0.001–0.029
  • Average individual appears normal
  • Subtle effects that can be detected with special tests
0.030–0.059
  • Mild euphoria
  • Relaxation
  • Joyousness
  • Talkativeness
  • Decreased inhibition
  • Concentration
0.060–0.099
  • Reasoning
  • Depth perception
  • Peripheral vision
  • Glare recovery
0.100–0.199
  • Over-expression
  • Boisterousness
  • Possibility of nausea and vomiting
  • Reflexes
  • Reaction time
  • Gross motor control
  • Staggering
  • Slurred speech
  • Temporary erectile dysfunction
0.200–0.299
  • Nausea
  • Vomiting
  • Emotional swings
  • Anger or sadness
  • Partial loss of understanding
  • Impaired sensations
  • Decreased libido
  • Possibility of stupor
  • Severe motor impairment
  • Loss of consciousness
  • Memory blackout
0.300–0.399
0.400–0.500
  • Severe central nervous system depression
  • Coma
  • Possibility of death
>0.50
  • High risk of poisoning
  • High possibility of death
Standard drink chart (U.S.)
AlcoholAmount (ml)Amount (fl oz)Serving sizeAlcohol (% by vol.)Alcohol
80 proof liquor 44 1.5 One shot 40 0.6 US fl oz (18 ml)
Table wine 148 5 One glass 12 0.6 US fl oz (18 ml)
Beer 355 12 One can/bottle 5 0.6 US fl oz (18 ml)
Male
Female
Approximate blood alcohol percentage (by vol.)
One drink has 0.5 US fl oz (15 ml) alcohol by volume
DrinksBody weight
40 kg45 kg55 kg64 kg73 kg82 kg91 kg100 kg109 kg
90 lb100 lb120 lb140 lb160 lb180 lb200 lb220 lb240 lb
1
0.05
0.04
0.05
0.03
0.04
0.03
0.03
0.02
0.03
0.02
0.03
0.02
0.02
0.02
0.02
0.02
0.02
2
0.10
0.08
0.09
0.06
0.08
0.05
0.07
0.05
0.06
0.04
0.05
0.04
0.05
0.03
0.04
0.03
0.04
3
0.15
0.11
0.14
0.09
0.11
0.08
0.10
0.07
0.09
0.06
0.08
0.06
0.07
0.05
0.06
0.05
0.06
4
0.20
0.15
0.18
0.12
0.15
0.11
0.13
0.09
0.11
0.08
0.10
0.08
0.09
0.07
0.08
0.06
0.08
5
0.25
0.19
0.23
0.16
0.19
0.13
0.16
0.12
0.14
0.11
0.13
0.09
0.11
0.09
0.10
0.08
0.09
6
0.30
0.23
0.27
0.19
0.23
0.16
0.19
0.14
0.17
0.13
0.15
0.11
0.14
0.10
0.12
0.09
0.11
7
0.35
0.26
0.32
0.22
0.27
0.19
0.23
0.16
0.20
0.15
0.18
0.13
0.16
0.12
0.14
0.11
0.13
8
0.40
0.30
0.36
0.25
0.30
0.21
0.26
0.19
0.23
0.17
0.20
0.15
0.18
0.14
0.17
0.13
0.15
9
0.45
0.34
0.41
0.28
0.34
0.24
0.29
0.21
0.26
0.19
0.23
0.17
0.20
0.15
0.19
0.14
0.17
10
0.51
0.38
0.45
0.31
0.38
0.27
0.32
0.23
0.28
0.21
0.25
0.19
0.23
0.17
0.21
0.16
0.19
Subtract approximately 0.01 every 40 minutes after drinking.