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Ounces To Grams Calculator

Work out ounces to grams instantly with clear inputs, formula shown and shareable results.

About Ounces To Grams Calculator

Kitchen weights use the avoirdupois ounce of 28.349523125 g exactly; the troy ounce used for metals is heavier at 31.1035 g and a fluid ounce of water weighs about 29.57 g. Recipes that say 'oz' always mean avoirdupois, so using a troy conversion would overshoot every quantity by nearly ten percent.

Formulas

Grams

grams = ounces x grams per ounce for the chosen ounce type

Pounds

pounds = grams / 453.59237

Worked example

With the default values below, Ounces To Grams Calculator returns Grams of 226.796. Change any input above and every figure here is recalculated in your browser.

Inputs used

Ouncesminimum 0.001 oz
8 oz
Ounce typeone of Avoirdupois (28.3495 g) - normal food weight, Troy (31.1035 g) - precious metals, US fluid ounce of water (29.5735 g)
Avoirdupois (28.3495 g) - normal food weight

Results

Grams
226.796 g
Kilograms
0.22680 kg
Pounds
0.5000 lb
Grams per ounce used
28.3495

Step by step

  1. 1Values used
  2. 2Grams
  3. 3Pounds
  4. 4Grams= 226.796 g
  5. 5Kilograms= 0.22680 kg
  6. 6Pounds= 0.5000 lb
  7. 7Grams per ounce used= 28.3495

Assumptions and limits

  • The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 5 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Ounces To Grams figure worked out?

grams = ounces x grams per ounce for the chosen ounce type. Kitchen weights use the avoirdupois ounce of 28.349523125 g exactly; the troy ounce used for metals is heavier at 31.1035 g and a fluid ounce of water weighs about 29.57 g.

Why does this matter?

Recipes that say 'oz' always mean avoirdupois, so using a troy conversion would overshoot every quantity by nearly ten percent.

What do I need to enter?

Enter ounces, ounce type. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.

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