1 ounce to grams

1 ounce = 28.34952 grams

Rounded to a practical precision: 28.3 g.

ounces

grams

How the calculation works

One ounce is 28.34952 grams, so:

1 oz × 28.34952 = 28.34952 g

Reversing it, 28.34952 grams ÷ 28.34952 returns 1 ounces.

Nearby values

Ounces	Grams
0.5 oz	14.17476 g
1 oz	28.34952 g
1.5 oz	42.52428 g
2 oz	56.69905 g
2.5 oz	70.87381 g
3 oz	85.04857 g

About these units

Ounce (oz) — An ounce is one sixteenth of a pound, about 28.35 grams, used for food portions and postal weights.

Gram (g) — A gram is one thousandth of a kilogram and is the everyday unit for food and small quantities.

Frequently asked questions

How many grams is 1 ounce?

1 ounce is 28.34952 grams.

How do I convert ounces to grams myself?

Multiply by 28.34952. To go back, divide by 28.34952 — or multiply by 0.035274.

Is this figure exact?

The conversion factor between the ounce and the gram is fixed by definition. The figure above is rounded for readability; the converter carries full precision.

Convert other values

Full ounces to grams converter · All weight converters