🤖 AI Analysis
Thailand
AI Blood Alcohol Calculator – Thailand 0.05% Limit & Sober Time 🇹🇭
Driving in Thailand? Our AI estimates your blood alcohol content from your weight, drinks, and food — so you know when you're back under the 0.05% (50mg%) limit and when you'll be sober again.
50 mg/100 ml
Drink-drive limit
- Instant BAC estimate
- Sobriety timeline
- Limits for 40+ countries
📈 Results
Current BACPeak BAC
{{ initialSobriety }}{{ unitSign }}
Measured for Now · Drink-drive limit {{ countryLimit }}{{ unitSign }}
Status:
Above the Thai limit.
Close to the 0.05% Thai limit — this estimate could already be over.
Below the 0.05% Thai limit.
Current BAC
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Drink-drive limit
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Elimination rate
{{ decayRateDisplay }}{{ unitSign }} / h
Standard Drinks
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Pure Alcohol (g)
{{ alcoholGrams }} g
Calories
{{ calories }} kcal
Time over limit
{{ timeOverLimit || '0m' }}
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:
Above the Thai limit.
Close to the 0.05% Thai limit — this estimate could already be over.
Below the 0.05% Thai limit.
| {{ afterLabel }} | {{ $t('unit.' + units) }} | Status |
|---|---|---|
| {{ result.time }} | {{ result.drunkenness }} |
- Below the 0.05% Thai limit.
- Close to the 0.05% Thai limit — this estimate could already be over.
- Above the Thai limit.
This is general information, not legal advice, and the estimate is approximate. The only safe level before driving is zero.
Sobriety Over Time
Your estimated BAC as your body clears the alcohol
Time until {{ zeroTargetLabel }}
{{ sobrietyDuration }}
- {{ lookaheadBacDisplay }}{{ unitSign }} Above the Thai limit. Close to the 0.05% Thai limit — this estimate could already be over. Below the 0.05% Thai limit.
- {{ $t('unit.' + units) }}
- Drink-drive limit ({{ countryLimit }}{{ unitSign }})
👮 Health impact and legal consequences
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- {{ $t('impact.status') }}
- {{ $t('impact.fine') }}
- {{ $t('impact.ban') }}
- {{ $t('impact.licence') }}
- {{ $t('impact.confiscation') }}
- {{ $t('impact.points') }}
- {{ $t('impact.aggravating') }}
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📝 AI Notes
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AI Drink Drive Calculator & Alcohol Limit Thailand
The AI BAC Calculator is tailored for users driving in Thailand to estimate blood alcohol content (BAC) more precisely against the 0.05% (50mg%) limit — and the stricter 0.02% that applies to new and young drivers. It considers individual traits — weight, gender, age, exact alcohol intake, and food — to offer a smarter assessment of when you'll be back under the limit.
Why is the AI more accurate than a basic BAC calculator?
- Personalisation: Generic formulas treat every drinker the same. The AI adjusts to your body and habits for a realistic BAC estimate against the Thai 0.05% threshold.
- Data-driven learning: The AI leverages large datasets of real BAC measurements and physiological studies to refine accuracy over time.
- Complex factor handling: Food intake, drinking pace, physical activity, and even time of day all influence BAC — the AI accounts for them.
- Practical recommendations: Beyond numbers, you get a clear answer on when you will be back under the limit in Thailand, your morning-after risk, and how much buffer time you should add to account for individual variation.
This tool helps promote responsible decisions aligned with Thai law — especially valuable for tourists and expats. Remember that police run frequent roadside breath tests (especially during Songkran and New Year), refusing the test counts as guilt, and tourists on a foreign licence face the same penalties as Thai nationals. If you plan to drive, the safe count is zero.
Thailand Drink Driving Limit & Alcohol Calculator Data
Seven factors that determine your result
Weight
Sex
Age
Amount
Strength
Food
Time
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 Thailand drink?
Alcohol consumption per adult, per year
7.6L
litres of pure alcohol per adult (15+), per year
Per adult, that is roughly:
461
beers
≈ 9/week
422
glasses of wine
≈ 8/week
475
shots
≈ 9/week
0.0 L
Ø 3.1
7.6 L
142% above the regional average
Ranks #1 of 10 in South-East Asia
Ranks #56 of 188 in the World
Average in South-East Asia: 3.1 L
How neighbours compare
Laos
11.2L
#1 Western Pacific
Vietnam
10.7L
#3 Western Pacific
Thailand
7.6L
#1 South-East Asia
Cambodia
5.4L
#9 Western Pacific
Myanmar
1.9L
#7 South-East Asia
Malaysia
0.8L
#20 Western Pacific
How safe are the roads in Thailand?
Road traffic deaths per 100,000 people, per year
25.4 /100k
road traffic deaths per 100,000 people, 2021
~33%
of road deaths linked to alcohol
WHO estimate, 2019 · 22–47%
350
road deaths per week
WHO estimate, 2021
117
alcohol-linked deaths per week
WHO-derived estimate
1.3
Ø 15.9
28.2
60% more road deaths than the regional average
#8 safest of 9 in South-East Asia
#180 safest of 195 worldwide
Average in South-East Asia: 15.9 per 100k
How neighbours compare
Malaysia
13.9
#19 Western Pacific
Laos
16.4
#22 Western Pacific
Vietnam
17.7
#25 Western Pacific
Cambodia
18.8
#27 Western Pacific
Myanmar
19.3
#7 South-East Asia
Thailand
25.4
#8 South-East Asia
Latest available year shown per country.
LIMITS NEARBY
BAC limits in neighboring countries
Explore the legal blood alcohol concentration (BAC) limits for drivers in nearby countries.
MY
Malaysia
50mg/100 ml
Moderate
LA
Laos
50mg/100 ml
Moderate
KH
Cambodia
50mg/100 ml
Moderate
MM
Myanmar
80mg/100 ml
Relaxed
VN
Vietnam
0mg/100 ml
Zero tolerance
Alcohol Limit Thailand: 0.05% (50mg%) — 0.02% for New Drivers
Legal drink driving limits for Thailand
General drivers (licence over 5 yrs)
50mg%
Moderate
Under 20 / new & provisional licence
20mg%
Strict
Most Thai drivers must stay under 0.05% (50mg of alcohol per 100ml of blood). A stricter 0.02% (20mg%) limit applies to drivers under 20, provisional or under-5-year licence holders, and unlicensed or suspended drivers. Exceeding the limit carries up to 1 year in jail, a ฿5,000–฿20,000 fine, and a licence suspension of at least 6 months. Refusing the test is treated as an admission of guilt.
Verified with official source
Open the register
Legal limits checked against ratchakitcha.soc.go.th
Last verified: 2026-09-04
Thailand Drink Driving Penalties & Alcohol Limit
Consequences of drink driving in Thailand by severity
Over the limit (50 / 20 mg%)
Drink driving (criminal offence)
- Up to 1 year jail
- ฿5,000–฿20,000 fine
- Licence suspension from 6 months
Causing injury or death
Causing an accident / repeat offence
- 1–10 years jail
- Up to ฿200,000 fine
- Licence revoked
Responsible Drinking & the 0.05% Limit in Thailand
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
The Thai limit is 0.05% (just 0.02% for new drivers). Use Grab, a taxi, or a tuk-tuk, or stay overnight.