Singapore

AI Alcohol Calculator – Singapore Drink Drive Limit & BAC Chart 🇸🇬

Worried about your levels? Let our AI give you peace of mind with a fast, personalized, and reliable blood alcohol calculator — so you can stay within the Singapore drink driving limit of 80mg/100ml (about 0.08% BAC).

0.8 ‰ Drink-drive limit
Use standard Calculator FAQ
  • Instant BAC estimate
  • Sobriety timeline
  • Legal limits for 40+ countries

ℹ️ Information

CONTEXT
🌎 Country
Show results in
ABOUT YOU
Sex
Weight

Age

🪪

Food intake

🍽️

🍹🍸🍺 Drinks

Drink {{index+1}} 🍷

%

Maximum number of drinks reached.

Tries left:

We're experiencing high demand at the moment. Please try again in a little while.

📈 Results

Current BACPeak BAC {{ initialSobriety }}{{ unitSign }} Measured for Now · Drink-drive limit {{ countryLimit }}{{ unitSign }}
Status:
Over the legal limit – driving is illegal. Approaching the legal limit – driving not advised. Likely under the limit, but drive with care.
{{ legalLimitTimeLabel }}

Current BAC

{{ initialSobriety }}{{ unitSign }}
Measured for Now

Drink-drive limit

{{ countryLimit }}{{ unitSign }}
Based on Singapore law ·

Elimination rate

{{ decayRateDisplay }}{{ unitSign }} / h
Typical average

Standard Drinks

{{ standardDrinks }}🍺
Approx. consumed

Pure Alcohol (g)

{{ alcoholGrams }} g
Total ethanol consumed

Calories

{{ calories }} kcal
From alcohol only — mixers add more

Time over limit

{{ timeOverLimit || '0m' }}
Estimated duration above the legal driving limit
For your own safety, we recommend using a rate no higher than the average.
Current BACPeak BAC {{ initialSobriety }}{{ unitSign }} Measured for Now · Drink-drive limit {{ countryLimit }}{{ unitSign }}
Status:
Over the legal limit – driving is illegal. Approaching the legal limit – driving not advised. Likely under the limit, but drive with care.
{{ legalLimitTimeLabel }}
{{ afterLabel }} {{ $t('unit.' + units) }} Status
{{ result.time }} {{ result.drunkenness }}
  • Likely under the limit, but drive with care.
  • Approaching the legal limit – driving not advised.
  • Over the legal limit – driving is illegal.
📉 Sobriety Over Time
👮 Health impact and legal consequences
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🤖 AI Analysis

📝 AI Notes

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To the top ⬆️

Attention‼️ The results are only approximate, so make sure you are sober before driving.

AI Alcohol Content Calculator & Drink Drive Limit Singapore

The AI BAC Calculator is tailored for users in Singapore to estimate blood alcohol content (BAC) more precisely against the 80mg/100ml limit (about 0.08% BAC). It considers individual traits like weight, gender, age, and exact alcohol intake to offer a smarter assessment of your blood alcohol level and how long it may take to sober up.

Why is our AI tool more accurate than basic BAC calculators?

  • Personalisation: Unlike traditional tools that rely on outdated formulas, AI adjusts to your body and habits for a realistic alcohol limit for driving estimate.
  • Data-driven learning: Our AI leverages large datasets of real BAC measurements and physiological studies to refine accuracy over time.
  • Considers complex factors: Food intake, drinking speed, physical activity, and even time of day can influence BAC – our AI takes those into account.
  • Practical recommendations: Beyond numbers, you'll get insight into when it's safe to drive in Singapore, your morning-after risk, and how much buffer time to add for individual variation.

This tool helps promote responsible behaviour and complements Singapore's drink-drive guidance for safer decisions and legal compliance. Remember that the Traffic Police run frequent breath tests, refusing a test is itself an offence, and a separate "driving under the influence" charge can apply even at a low reading if you are unfit to drive. If you plan to drive, the safe count is zero.

Singapore Drink Drive Limit & Alcohol Calculator Data

Seven factors that determine your result

Weight
Body weight determines how alcohol distributes in the body — more weight means a lower blood alcohol concentration.
Sex
Men and women metabolise alcohol at different rates because of differences in body water content.
Age
Body water content declines with age, so the same amount of alcohol pushes peak BAC higher.
Amount
The amount of pure alcohol consumed is the main factor that determines your BAC result.
Strength
A higher strength (%) means more ethanol in the same drink serving.
Food
Food in your stomach slows alcohol absorption — drinking on an empty stomach can nearly double the peak BAC.
Time
The time of your first drink shows how BAC changes hour by hour and when you'll be sober again.

How much does Singapore drink?

Alcohol consumption per adult, per year

2.0L

litres of pure alcohol per adult (15+), per year

Per adult, that is roughly:

80 beers ≈ 2/week
111 glasses of wine ≈ 2/week
125 shots ≈ 2/week
2.0 L
0.1 L Ø 4.2 11.2 L

52% below the regional average

Ranks #15 of 25 in Western Pacific Ranks #137 of 188 in the World Average in Western Pacific: 4.2 L

How neighbours compare

#1 Australia 11.2L #1 Western Pacific
#2 Thailand 7.6L #1 South-East Asia
#3 Japan 6.3L #7 Western Pacific
#4 India 4.5L #3 South-East Asia
#5 Singapore 2.0L #15 Western Pacific
#6 Malaysia 0.8L #20 Western Pacific
LIMITS NEARBY

BAC limits in neighbouring countries

Explore the legal blood alcohol concentration (BAC) limits for drivers in neighbouring countries.

MY

Malaysia

0.5‰
Moderate
TH

Thailand

0.5‰
Moderate
AU

Australia

0.5‰
Moderate
JP

Japan

0.3‰
Strict
IN

India

0.3‰
Strict

Drink Driving Limit in Singapore

Drink-drive limit in Singapore (Road Traffic Act)

Blood limit (all drivers)
80mg/100ml
Relaxed
Breath limit (all drivers)
35µg/100ml
Relaxed
Singapore's prescribed limit is 80 mg of alcohol per 100 ml of blood (about 0.08% BAC), or 35 µg per 100 ml of breath, under the Road Traffic Act. This is one of the higher limits in the region — many drivers are impaired well before they reach it. A separate "driving under the influence" offence can apply at any level if you are unfit to drive, so the only safe amount before driving is none.

Drink Driving Penalties & Alcohol Limit Singapore

Consequences of exceeding Singapore's 80mg/100ml drink-drive limit

80 mg/100ml and over (0.08% BAC)
  • Drink-driving offence under the Road Traffic Act
  • Substantial fine and a mandatory driving disqualification
  • Possible imprisonment, especially with a high reading
Repeat offence / accident / very high reading
  • Heavier fine and a much longer or indefinite disqualification
  • Imprisonment far more likely
  • Causing hurt or death is treated as a grave offence with the most severe penalties

Source: Singapore Police Force (Traffic Police) and the Road Traffic Act

Tips for Responsible Drinking & Morning After Calculator

Practical tips for safer drinking

Pace yourself
Stick to the "one drink per hour" rule – your liver needs time to process alcohol.
Eat before and while drinking
A solid meal slows alcohol absorption – an empty stomach raises BAC faster.
Drink water
After each alcoholic drink, have a glass of water – it reduces dehydration and health risks.
Don't drive
Even small amounts of alcohol impair reaction time. If in doubt, take a taxi or stay overnight.

Source: Singapore Health Promotion Board and the Health Hub

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