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Blood Alcohol Calculator

BAC Calculator

1 standard drink = 12oz beer (5%), 5oz wine (12%), or 1.5oz spirits (40%)

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We're working on a comprehensive educational guide for the Blood Alcohol Calculator in your language. The content below is shown in English.

کیا ہے Blood Alcohol Calculator?

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A Blood Alcohol Content (BAC) calculator estimates alcohol concentration in the blood using the Widmark formula. BAC is affected by drinks consumed, time elapsed, body weight, and sex.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

فارمولا

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f(x)BAC = (Alcohol grams) / (Body weight kg × r) × 100 − (0.015 × hours), where r=0.68 (male), 0.55 (female)

متغیر کی تشریح

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علامتناماکائیتفصیل
BACBlood Alcohol Content%—
AAlcohol consumedgrams—
WBody weightkg—
rDistribution ratio—0.68 male, 0.55 female

کیسے Blood Alcohol Calculator

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  1. 1BAC = (Alcohol consumed in grams) / (Body weight in g × r) − (0.015 × hours)
  2. 2r = 0.68 for men, 0.55 for women (body water distribution)
  3. 3Standard UK unit = 8g alcohol; US standard drink = 14g
  4. 4Legal UK driving limit: 80mg/100mL blood (0.08%)

حل شدہ مثالیں

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مثال 1
دیا گیا:2 pints beer (4.5%), 80kg male, 1 hour
نتیجہ:Alcohol ≈ 45.4g; BAC ≈ 45.4/(80,000×0.68) − 0.015 ≈ 0.068%

عملی استعمال

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Driving safety assessment

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Medical emergency response

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Occupational health screening

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Legal evidence in DUI cases

BAC Effects

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BAC %Effects
0.02–0.05Mild relaxation, slight impairment
0.06–0.10Impaired judgement, legal limit in many countries
0.11–0.20Significant impairment, slurred speech
0.20+Severe impairment, risk of blackout or death

اکثر پوچھے جانے والے سوالات

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Q

Why do women get drunk faster?

A

Women have lower body water % (r=0.55 vs 0.68 for men) and typically lower body weight, concentrating alcohol more.

Q

What's the UK legal driving limit?

A

80 mg/100 mL blood (0.08% BAC) in England/Wales/Scotland. Scotland's limit is lower: 50 mg/100 mL.

Q

Can food affect BAC calculation?

A

Food slows absorption but doesn't reduce total BAC. It delays peak BAC by 30-60 minutes.

Regional Guides

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UK▾
80 mg/100 mL (0.08%) England/Wales; 50 mg/100 mL (0.05%) Scotland
USA▾
80 mg/100 mL (0.08%) federal limit; 0.04% for commercial drivers
Australia▾
50 mg/100 mL (0.05%) general; 0% for learner/novice drivers

حوالہ جات

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Formula-verified for precision
Reviewed October 2026
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