Ounces to Grams
Convert ounces to grams instantly.
Ounces to Grams (oz to g) Converter
1 ounce = 28.35 grams
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- 1 oz = 28.35 g
- 5 oz = 141.75 g
- 10 oz = 283.5 g
- 25 oz = 708.74 g
- Kilogramskg
- Poundslb
- Ouncesoz
- Kilogramskg
- Gramsg
- Poundslb
How it’s calculated
g = oz × 28.34952313
- Multiply the value in ounces by 28.34952313.
- To go back, divide by 28.34952313 (or multiply by 0.03527396195).
- 1 oz = 28.34952313 g · 1 g = 0.03527396195 oz
Quick examples
1 ounce = 28.35 grams · 1 g = 0.035274 oz
- 1 ounce = 28.35 grams
- 5 ounces = 141.75 grams
- 10 ounces = 283.5 grams
- 25 ounces = 708.74 grams
- 100 ounces = 2,835 grams
Ounces to grams conversion table
| Ounces (oz) | Grams (g) |
|---|---|
| 0.1 oz | 2.835 g |
| 0.5 oz | 14.175 g |
| 1 oz | 28.35 g |
| 2 oz | 56.699 g |
| 3 oz | 85.049 g |
| 4 oz | 113.4 g |
| 5 oz | 141.75 g |
| 6 oz | 170.1 g |
| 7 oz | 198.45 g |
| 8 oz | 226.8 g |
| 9 oz | 255.15 g |
| 10 oz | 283.5 g |
| 15 oz | 425.24 g |
| 20 oz | 566.99 g |
| 25 oz | 708.74 g |
| 30 oz | 850.49 g |
| 40 oz | 1,134 g |
| 50 oz | 1,417.5 g |
| 75 oz | 2,126.2 g |
| 100 oz | 2,835 g |
| 250 oz | 7,087.4 g |
| 500 oz | 14,175 g |
| 1,000 oz | 28,350 g |
About these units
Ounce (oz)
US & imperial (identical)
1 oz = 0.028349523125 kg (exact)
The everyday (avoirdupois) ounce: one sixteenth of a pound, or exactly 28.349523125 g. Not the same as a fluid ounce, which measures volume.
Source: NIST SP 811 / Handbook 44
Gram (g)
SI (metric)
1 g = 0.001 kg (exact)
Defined as exactly 1/1,000 of a kilogram.
Source: BIPM SI Brochure (9th ed.)
Frequently asked questions
How do I convert ounces to grams?
Use g = oz × 28.34952313. Multiply the value in ounces by 28.34952313.
How many grams are in 1 ounce?
1 ounce (oz) equals 28.35 grams (g); more precisely 28.34952313.
How many ounces are in 1 gram?
1 gram (g) equals 0.035274 ounces (oz); more precisely 0.03527396195.
What is 10 oz in g?
10 ounces = 283.5 grams.
What is a ounce?
The everyday (avoirdupois) ounce: one sixteenth of a pound, or exactly 28.349523125 g. Not the same as a fluid ounce, which measures volume.
What is a gram?
Defined as exactly 1/1,000 of a kilogram.
Related conversions
Formula: g = oz × 28.34952313. Factors last reviewed 2026-10-27.