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Standard Drink Calculator

Updated Sep 2026 Used 0 times
Volume per serving.
ABV on the label.
Number of identical servings.

Guest calculations stay on this device. Signed-in results sync privately.

Your result

Standard Drink

Enter your values, then calculate to see a verified result.

Inputs usedReview the information used for this result.
Full calculation and sourcesAlcohol grams = volume mL x ABV x 0.789; US standard drinks = grams / 14.

Versioned calculationFormula v1.0.0

Formula definitionUnit-normalized calculationFormula v1.0.0

What this result means

Convert beverage volume and ABV into grams of ethanol plus US, UK and Australian reference units.

Method used

Alcohol grams = volume mL x ABV x 0.789; US standard drinks = grams / 14.

Important limitation

Standard-drink definitions vary by country. The result deliberately shows U.S. 14 g drinks, UK 8 g units and Australian 10 g drinks separately.

Result actions
1
Enter the inputsUse values with the units and definitions shown beside each field.
2
Apply the methodAlcohol grams = volume mL x ABV x 0.789; US standard drinks = grams / 14.
3
Inspect the bridgeReview the primary result and supporting outputs before using it.
4
Check limitationsConfirm the assumptions, date, jurisdiction or population match your use case.

Interpretation

A 355 mL drink at 5% ABV contains about 14 g ethanol, close to one US standard drink.

Alcohol grams = volume mL x ABV x 0.789; US standard drinks = grams / 14.

Standard-drink definitions vary by country. The result deliberately shows U.S. 14 g drinks, UK 8 g units and Australian 10 g drinks separately.

Use this result

Keep exploring

2 available tools
BAC CalculatorEstimate BAC with a transparent Widmark-style model, pure-alcohol calculation and broad uncertainty warning.Sobering Time CalculatorEstimate a broad time-to-zero range from beverage inputs while making clear that no online result makes driving safe.
Public verification recordFormula v1.0.0
Review scope
Standard Drink Calculator Formula, Input Validation, Edge Behavior And Result Presentation.
Review team
CalculatorGeek Expert Review Team
Verified
2026-09-21
Next source review
2027-09-21
Automated fixtures
1 cases

Review method

Package reconciliation, primary-source mapping, competitor feature comparison, deterministic fixtures, PHP/JavaScript parity and responsive preview QA.

Known limitations

  • Standard-drink definitions vary by country. The result deliberately shows U.S. 14 g drinks, UK 8 g units and Australian 10 g drinks separately.
  • Changing legal, medical, exam or statistical conventions must be checked at the source.

Primary sources

Latest update

2026-09-21 ·

On this page

Direct answer

Convert beverage volume and ABV into grams of ethanol plus US, UK and Australian reference units.

Continue with the BAC Calculator when that method matches your next question.

Continue with the Sobering Time Calculator when that method matches your next question.

Formula and methodology

Alcohol grams = volume mL x ABV x 0.789; US standard drinks = grams / 14.

A 355 mL drink at 5% ABV contains about 14 g ethanol, close to one US standard drink.

Continue with BAC Calculator or Sobering Time Calculator for the next calculation.

Worked example

A 355 mL drink at 5% ABV contains about 14 g ethanol, close to one US standard drink.

The calculator retains working precision and rounds only the displayed values.

Interpret the result carefully

Method boundary: Standard-drink definitions vary by country. The result deliberately shows U.S. 14 g drinks, UK 8 g units and Australian 10 g drinks separately.

Inputs, boundary behavior and JavaScript/PHP parity are covered by deterministic release tests.

Use the result for the named task only. Do not stretch it into a legal, clinical, safety or causal conclusion the formula does not support.

Inputs, outputs and result meaning

Calculates uS standard drinks, pure alcohol, uK units, and australian standard drinks from serving volume, alcohol by volume, and number of servings with visible method, validation, precision, and limitations.

Inputs

Serving volume
Volume per serving. Supported units include mL. The supported range is 1 through 10,000.
Alcohol by volume
ABV on the label. Supported units include %. The supported range is 0 through 100.
Number of servings
Number of identical servings. The supported range is 0 through 100.

Outputs

US standard drinks
This is the primary result. It is displayed in drinks. The visible value uses up to 3 decimal places according to the output rule.
Pure alcohol
It is displayed in g. The visible value uses up to 2 decimal places according to the output rule.
UK units
It is displayed in units. The visible value uses up to 3 decimal places according to the output rule.
Australian standard drinks
It is displayed in drinks. The visible value uses up to 3 decimal places according to the output rule.

The calculator applies the documented method after validating and normalizing the inputs. Keep the result label, unit, selected mode, and stated limitations together when sharing the answer.

Frequently asked questions

What method does this calculator use?

Alcohol grams = volume mL x ABV x 0.789; US standard drinks = grams / 14.

How should I round the result?

Keep full precision during the calculation and round only the final display unless a governing standard says otherwise.

What is the main limitation?

Standard-drink definitions vary by country. The result deliberately shows U.S. 14 g drinks, UK 8 g units and Australian 10 g drinks separately.

Can I reproduce the answer?

Yes. The formula, inputs, supporting outputs and worked example are displayed on the page.

Sources

Source research refreshed September 21, 2026. No rankings, review credentials or official affiliation are implied.