1 Fluid Ounce Water in Grams

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

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.

Converter Calculator

29.57 Grams

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29.57 grams

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

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 OuncesGrams
1 29.57
3.38 99.96
8 236.59
12 354.88
16 473.18
33.81 999.88

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.