Trying to work out how much alcohol is actually in your drink? You’re not alone. Different container sizes and alcohol percentages can make “one drink” a confusing concept. This Australian Standard Drink Calculator gives you a clear answer in seconds using the official 10g standard drink definition used in Australia.
Free Australian Standard Drink Calculator
Enter your drink details below. The calculator uses the Australian standard drink formula (10 grams of pure alcohol per standard drink).
What is a standard drink in Australia?
In Australia, 1 standard drink = 10 grams of pure alcohol. This is a measurement unit, not a specific glass size or bottle size. A single serve can be less than one standard drink, exactly one, or multiple standard drinks depending on alcohol strength and volume.
Example: A 375mL can at 4.8% ABV contains about 1.42 standard drinks, not 1.00.
How the formula works
The calculator uses the same core calculation used on many alcohol labels:
- Pure alcohol (g) = Volume (mL) × ABV (%) / 100 × 0.789
- Standard drinks = Pure alcohol (g) / 10
Where 0.789 g/mL is the density of ethanol. The result tells you how many Australian standard drinks are in one container and in your total quantity.
Why this matters
1) Better decisions in social settings
It’s easy to underestimate alcohol intake when drinks are served in different sizes. Counting standard drinks can help you pace yourself more effectively.
2) Safer planning
If you’re driving the next day, working early, training, or managing health goals, standard drink tracking gives you more realistic data than just counting glasses.
3) More accurate habit tracking
For anyone reducing alcohol intake, a “2 drinks” log is only useful if those drinks are measured consistently. Standard drinks make progress easier to track over time.
Australian low-risk drinking guidelines (general information)
For healthy adults, Australian guidance commonly references:
- No more than 10 standard drinks per week.
- No more than 4 standard drinks on any one day.
These are harm-minimisation guidelines, not a guarantee of zero risk. Risk can still vary by person, medication, health conditions, age, and context.
Typical examples
Beer
- 375mL can at 3.5% ABV: about 1.04 standard drinks
- 375mL can at 4.8% ABV: about 1.42 standard drinks
- 500mL can at 5.0% ABV: about 1.97 standard drinks
Wine
- 150mL glass at 12.5% ABV: about 1.48 standard drinks
- 750mL bottle at 13.5% ABV: about 7.99 standard drinks
Spirits
- 30mL shot at 40% ABV: about 0.95 standard drinks
- 60mL pour at 40% ABV: about 1.89 standard drinks
Practical tips for responsible use
- Check ABV on labels—don’t assume all beers or wines are similar.
- Use smaller glasses and alternate with water.
- Track total intake across the whole event, not per round.
- Eat before and during drinking to reduce rapid intoxication.
- Plan transport before drinking.
Important note
This tool is for informational and educational use only. It does not estimate blood alcohol concentration (BAC), impairment, or legal fitness to drive. If you have health concerns, are pregnant, taking medication, or need support around alcohol use, speak with a qualified health professional.