HIFreeTools

Free Grams to Ounces Converter

Convert grams to ounces and back — handy for cooking, baking, and parcels. Type in either box for an instant result.

Common values

GramsOunces
10 g0.3527 oz
50 g1.7637 oz
100 g3.5274 oz
250 g8.8185 oz
500 g17.637 oz
1000 g35.274 oz

Quick answer

To convert grams to ounces, divide the number of grams by 28.349523125 (or multiply by 0.0352739619), because one ounce is 28.349523125 grams. For example, 100 g ≈ 3.53 oz. To go back, multiply ounces by 28.349523125.

Formula & method

ounces = grams ÷ 28.349523125
  • grams — mass in grams
  • 28.349523125 — grams in one avoirdupois ounce

These are weight (avoirdupois) ounces, not fluid ounces, which measure volume.

Examples

Example 1: 100 grams
Input
100 g
Result
3.5274 oz
Why
100 ÷ 28.349523125 = 3.5274.
Example 2: About one ounce
Input
28.35 g
Result
≈ 1 oz
Why
28.349523125 g is exactly one ounce.
Example 3: Half a kilogram
Input
500 g
Result
17.637 oz
Why
500 ÷ 28.349523125 = 17.637.

When to use this tool

  • Following a recipe written in the other unit.
  • Weighing mail or small parcels for postage.
  • Converting nutrition or ingredient amounts.

Common mistakes

  • Confusing weight ounces with fluid ounces. Grams measure mass; fluid ounces measure volume.
  • Using 30 g per ounce as a shortcut for precise recipes — the real value is 28.35 g.
  • Forgetting that 16 ounces make a pound, not 10.

Frequently asked questions

＋ How do I convert grams to ounces?

Divide the grams by 28.349523125, or multiply by 0.0352739619. For example, 250 g ÷ 28.35 ≈ 8.82 oz.

＋ How many grams are in an ounce?

An avoirdupois ounce is 28.349523125 grams. A quick approximation is 28.35 g.

＋ Are these the same as fluid ounces?

No. This converts weight in grams to weight in ounces. Fluid ounces measure volume and don’t convert directly to grams without knowing the substance.

＋ How many ounces are in a pound?

Exactly 16 ounces make one pound, which is about 453.6 grams.

＋ How do I convert ounces back to grams?

Multiply the ounces by 28.349523125, or just type a value into the ounces box here.

  • ✓ Free to use
  • ✓ No sign-up required
  • ✓ Runs entirely in your browser — nothing is uploaded.
  • ✓ Formula and method shown above
Last updated: How we calculateReport a correctionDisclaimer

Provided “as is” for general information only — results may be inaccurate, so verify before you rely on them. No warranty; use at your own risk.

Related tools