BeverageFluid Ounces to Grams

1 Fluid Ounce Water in Grams

Updated: July 28, 2026 · Source: Water reference basis: 1 g/mL at kitchen temperature (US fluid ounce volume: 29.5735 mL.)

Methodology·How We Verify

Snapshot

1 fluid ounce of water equals 29.57 grams. Conversion Encyclopedia keeps one fixed beverage basis on this page so the calculator, common values, and reverse page stay aligned.

Reference basis: 1 g/mL.
Example: For 8 US fluid ounces of water, the result is about 236.59 grams with the same basis.
Source basis: Water reference basis: 1 g/mL at kitchen temperature.

Use the interactive calculator below for custom values and the common-value table for quick checks.

Interactive conversion

Converter Calculator

29.57 Grams

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29.57 grams

With 1 fluid ounce of Water, that equals 29.57 grams.

Machine access

Available to apps and AI agents

1 Fluid Ounce Water in Grams can be requested through Conversion Encyclopedia's structured interfaces by software and compatible AI agents. The water identifier tells the conversion engine which ingredient record to use for the same calculation shown by the calculator.

Machine-readable identifiers

Conversion family: beverage
Source unit: fluid_ounce_us
Target unit: gram
Ingredient: water

The JSON API and OpenAPI specification use the identifiers to reach the conversion engine. WebMCP lets compatible AI agents request the same calculation.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "beverage",
  "value": 1,
  "from": "fluid_ounce_us",
  "to": "gram",
  "material": "water"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "beverage",
    "value": 1,
    "from": "fluid_ounce_us",
    "to": "gram",
    "result": {
      "raw": 29.5735295625,
      "display": "29.57"
    },
    "canonicalPath": "/beverage/fluid-ounces-to-grams/water/"
  }
}

Full API documentation

Explanation

This is the reverse water-only side of the same conversion basis. It turns US fluid ounces of water into grams using the standard kitchen approximation that water is about 1 gram per milliliter.

That makes it useful for questions like how many grams in a fluid ounce of water, shot-style water pours, and bottle-style references where the starting point is volume but the target is grams. The mirror page reverses the same water basis to estimate fluid ounces from grams.

Method & Water Basis

Water basis: this converter treats water as about 1 gram per milliliter at normal kitchen temperature.
Applied formula: grams = fluid ounces × 29.5735.
Consistency rule: snapshot, calculator, FAQ, and common values all use the same water-only basis.
Source: Water reference basis: 1 g/mL at kitchen temperature (US fluid ounce volume: 29.5735 mL.)

Common Conversion Values

Fluid Ounces	Grams
1	29.57
3.38	99.96
8	236.59
12	354.88
16	473.18
33.81	999.88

Methodology

Water density evidence

Water is a neutral, non-alcoholic liquid that plays a fundamental structural role in mixed drinks. It acts as a diluent and binding medium, influencing balance, texture, and integration of flavors rather than contributing aroma or taste of its own.

Practical use: Water is used to control dilution, balance intensity, and adjust texture. It functions as a structural element in mixed preparations, infusions, syrups, and ice, directly influencing mouthfeel and overall harmony.

Composition and sensory context: Water is sensorially neutral, with no inherent sweetness, bitterness, acidity, or aroma. Its impact is indirect, affecting perception by diluting alcohol, softening intensity, and allowing individual components to integrate more smoothly.

Water uses 1 g/mL in this dataset, which is close to the 1 g/mL water reference. Evidence status: high-confidence. Source basis: Typical density of pure water at room temperature.

Among the 2 reviewed records labeled Non-Carbonated Mixers, the nearest density to Water is Cold Water at 1 g/mL: an absolute difference of 0 g/mL (0.0% relative to Water). The observed range in this labeled group is Cold Water at 1 g/mL to Water at 1 g/mL. This is a numerical comparison, not a claim that the liquids are interchangeable.

Brand formulation, alcohol or sugar concentration, carbonation, and serving temperature can change the weight of a measured volume. Use this value as a documented reference rather than a producer specification.

Questions & answers

Frequently Asked Questions

How many grams are in 1 fluid ounce of water?

1 US fluid ounce of water is about 29.57 grams in this converter.

Does this use the same basis as the grams-to-fluid-ounces water page?

Yes. The mirror page uses the same water-only basis, only reversed to estimate fluid ounces from grams.

Is this fluid ounces or weight ounces?

It is US fluid ounces, which measure volume. This page does not use weight ounces.

Why is this not a universal fluid-ounces-to-grams rule?

Because grams depend on liquid density. This shortcut is reliable for water, but other liquids need their own density basis.