Updated · Methodology: named formula library
1 oz = 28.35 g. To convert oz to g, multiply by 28.35. To convert g back to oz, multiply by 0.035274.
Ounces to Grams Converter
Convert oz to grams instantly. Free oz-to-grams conversion calculator.
1 oz = 28.3495 grams.
1 oz = 28.3495 g. To convert oz to g, multiply by 28.3495. To go the other direction, multiply g by 0.035274.
How the conversion works
The relationship is linear: every value of oz maps to exactly 28.3495 g, scaling proportionally. 1 ounce (avoirdupois) equals exactly 28.349523125 grams, derived from the 1959 definition of the pound (1 lb = 453.59237 g, 1 lb = 16 oz).
Common conversion values
- 1 oz = 28.3495 g
- 10 oz = 283.5 g
- 100 oz = 2834.95 g
- 1,000 oz = 28,350 g
See the [forward](#chart) and [reverse](#reverse-chart) charts below for additional values.
Quick mental shortcut
Quick estimate: divide grams by 30 for an approximate ounce count.
Accuracy note
The factor used here (28.3495) is rounded to 6 significant figures, which is sufficient for most everyday use including cooking, fitness, height comparisons, and shipping. For scientific, engineering, or trade-regulated contexts, use the full-precision factor or the official defining relationship cited above. Conversions in this calculator are computed at full double-precision; only the displayed values are rounded.
oz to g Chart
| oz | g |
|---|---|
| 1 oz | 28.35 g |
| 2 oz | 56.699 g |
| 3 oz | 85.049 g |
| 5 oz | 141.75 g |
| 10 oz | 283.5 g |
| 20 oz | 566.99 g |
| 25 oz | 708.74 g |
| 50 oz | 1,417.47 g |
| 75 oz | 2,126.21 g |
| 100 oz | 2,834.95 g |
| 200 oz | 5,669.9 g |
| 500 oz | 14,175 g |
| 1,000 oz | 28,350 g |
| 5,000 oz | 141,748 g |
Multiplier: × 28.35
g to oz Chart
| g | oz |
|---|---|
| 1 g | 0.035274 oz |
| 2 g | 0.070548 oz |
| 3 g | 0.105822 oz |
| 5 g | 0.17637 oz |
| 10 g | 0.35274 oz |
| 20 g | 0.70548 oz |
| 25 g | 0.88185 oz |
| 50 g | 1.764 oz |
| 75 g | 2.646 oz |
| 100 g | 3.527 oz |
| 200 g | 7.055 oz |
| 500 g | 17.637 oz |
| 1,000 g | 35.274 oz |
| 5,000 g | 176.37 oz |
Multiplier: × 0.035274
Common Specific Values
10 oz to g
10 oz equals 283.5 g. (10 × 28.35 = 283.5)
25 oz to g
25 oz equals 708.74 g. (25 × 28.35 = 708.74)
50 oz to g
50 oz equals 1,417.47 g. (50 × 28.35 = 1,417.47)
100 oz to g
100 oz equals 2,834.95 g. (100 × 28.35 = 2,834.95)
500 oz to g
500 oz equals 14,175 g. (500 × 28.35 = 14,175)
When to Use This Calculator
- Convert between metric and imperial without searching for factors.
- Verify a unit-aware calculation in engineering, science, or cooking.
- Translate specifications across U.S. and international standards.
Limitations & Common Mistakes
- Results are estimates, real-world outcomes depend on factors not captured in a simplified calculation.
- Always verify critical numbers against an authoritative source or domain expert before acting on them.
Frequently Asked Questions
How does the Ounces to Grams Converter work?
Enter your value (default: 1) and any other inputs; the calculator instantly applies its ounces to grams formula and shows the result with details. All math runs in your browser; nothing is sent to a server.
Is the Ounces to Grams Converter accurate for weight decisions?
It uses standard, documented formulas that match published references. For high-stakes weight decisions, verify the result against an authoritative source (industry calculator, professional advisor, or government data). The calculator is a planning estimate, not a substitute for professional judgment.
What inputs does the Ounces to Grams Converter require?
1 input: Value. Each has a sensible default; replace with your own values to get a result tailored to your situation.
Can I bookmark or share the Ounces to Grams Converter?
Yes — the URL is stable: https://www.calcintel.com/calculator/ounces-to-grams. Inputs reset to defaults on each visit (no input is stored), so screenshot or copy the result if you want to preserve a specific scenario.
Is 4 ounces 100g?
4 oz equals 113.4 g — that's different from 100 g. Use the chart below for exact values at common quantities.
Is 1 oz 8 grams?
1 oz equals 28.3495 g — that's different from 8 grams. Use the chart below for exact values at common quantities.
How many grams is a 24k gold ounce?
1 oz = 28.3495 g. To convert oz to g, multiply by 28.3495; to convert g back to oz, multiply by 0.035274. See the conversion chart below for ready-made values.
Is 250g equivalent to 8 oz?
250 oz equals 7087.38 g — that's different from 8 oz. Use the chart below for exact values at common quantities.
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Source: BLS Consumer Price Index, 2026.