ounces to grams Converter
Unit Converter
Instant · Precise · Universal
34 units available
6 categories total
How to Convert Ounce to Gram
To convert ounces to grams: multiply by 28.3495. To convert grams to ounces: divide by 28.3495.
1 oz = 28.349523125 g = 1/16 lb = 437.5 grains.
For example, 1 Ounce (oz) = 28.34952313 Gram (g).
Ounce to Gram — Common Values
| Ounce (oz) | Gram (g) |
|---|---|
| 0.1 | 2.834952313 |
| 0.5 | 14.17476156 |
| 1 | 28.34952313 |
| 2 | 56.69904625 |
| 5 | 141.7476156 |
| 10 | 283.4952313 |
| 25 | 708.7380781 |
| 50 | 1417.476156 |
| 100 | 2834.952313 |
| 500 | 14174.76156 |
| 1000 | 28349.52312 |
About Ounce (oz)
Definition
The ounce (avoirdupois) is an imperial unit of mass equal to 1/16 of a pound or approximately 28.35 grams.
Mathematical Relationship
1 oz = 28.349523125 g = 1/16 lb = 437.5 grains.
Conversion Formula
To convert ounces to grams: multiply by 28.3495. To convert grams to ounces: divide by 28.3495.
Practical Applications
Food packaging (cereal boxes, cheese), postal weights, baby weight tracking (lb and oz), and cooking.
Interesting Facts
There are two different ounces: the avoirdupois ounce (28.35 g) for general use and the troy ounce (31.1 g) for precious metals. Gold is always measured in troy ounces.
Common Mistakes
Confusing avoirdupois ounces (28.35 g) with troy ounces (31.1 g). Also confusing oz (mass) with fl oz (volume).
Educational Tips
There are 16 oz in a pound. A quick gram conversion: 1 oz ≈ 30 g (for estimation).
About Gram (g)
Definition
The gram is a metric unit of mass equal to one thousandth of a kilogram, originally defined as the mass of one cubic centimeter of water at 4°C.
Mathematical Relationship
1 g = 0.001 kg = 1,000 mg = 10⁶ µg. There are 453.59 g in one pound.
Conversion Formula
To convert grams to ounces: divide by 28.3495. To convert grams to pounds: divide by 453.592.
Practical Applications
Cooking recipes, food nutrition labels, postal weight limits, jewelry, and chemistry lab measurements.
Interesting Facts
A US dollar bill weighs approximately 1 g. A standard paper clip also weighs about 1 g.
Common Mistakes
Confusing grams with ounces — 1 oz ≈ 28.35 g, not 1 g. Also, mixing up g (gram) with G (giga prefix).
Educational Tips
A paper clip = ~1 g, a nickel = 5 g, a banana = ~120 g. Build intuition with everyday objects.