Grams to Fl Oz

Fluid Metrology & Fluid Ounce Standards

It is critical to distinguish Fluid Ounces (volume) from Dry / Avoirdupois Ounces (mass):

• 1 US Fluid Ounce (fl oz): 29.5735295625 mL = (1) / (128) US Gallon

• 1 UK Imperial Fluid Ounce: 28.4130625 mL = (1) / (160) UK Gallon

• 1 Avoirdupois Ounce (Weight oz): 28.349523125 grams

Primary Liquid Conversions (100 Grams)

• Pure Water: 100 g = 3.38 US fl oz = 100.0 mL

• Whole Milk: 100 g = 3.28 US fl oz = 97.1 mL

• Olive / Cosmetic Oil: 100 g = 3.68 US fl oz = 108.7 mL

• Perfume / Alcohol: 100 g = 3.84 US fl oz = 113.6 mL

• Honey: 100 g = 2.38 US fl oz = 70.4 mL

How to Use This Calculator

Enter your Amount to Convert (e.g. 100.0), Liquid Product & Density — choose from Water / Pure Liquids (1.000 g/mL), Whole Milk (1.030 g/mL), Olive / Cosmetic Oil (0.920 g/mL), Fluid Ounce Standard — choose from US Fluid Ounces (1 fl oz = 29.574 mL), UK Imperial Fluid Ounces (1 fl oz = 28.413 mL), and Conversion Direction — choose from Grams to Fluid Ounces (g → fl oz), Fluid Ounces to Grams (fl oz → g). Results update instantly as you type — adjust any value to compare scenarios.

The Formula

Formula Reference: Grams to Fl Oz

Input variables:

amountValue — Amount to Convert

flOzStandardSelect — Fluid Ounce Standard

conversionDirectionSelect — Conversion Direction

Computed outputs:

convertedAmount — Converted Quantity

equivalentFluidOunces — Fluid Ounces (fl oz)

equivalentMilliliters — Volume in Milliliters (mL)

equivalentGrams — Mass in Grams (g)

equivalentTablespoons — Tablespoons (Tbsp)

Mathematical relationships extracted from calculation logic:

ml = floz * mlPerFlOz

Standard: NIST Handbook 44 and BIPM SI unit definitions

Worked Example

A 100-gram European face moisturizer cream fills approximately 3.31 US fluid ounces in a retail cosmetic dispenser.

Understanding Your Result

Unit conversion precision: round to the same number of significant figures as your original measurement. Converting 6 feet to meters gives 1.8288 m — but if your measurement was approximate (±1 inch), expressing more than 2 decimal places is false precision. For international trade and technical specifications, SI units (meters, kilograms, liters) are the standard. US customary units (feet, pounds, gallons) differ from Imperial UK units: 1 US gallon = 3.785 L vs. 1 UK gallon = 4.546 L.