Grams ➝ Ounces: Fast, Exact, Reliable
1. Core Formula
oz = g ÷ 28.349523125 (exact). Reverse: g = oz × 28.349523125. For mental math: oz ≈ g × 0.03527396195.
2. Flow
- Input grams.
- Divide by 28.349523125 → ounces.
- Round for display (2–3 dp kitchen, 4–6 dp lab).
- Cross-check: 100 g ≈ 3.5274 oz.
3. Sanity Checks
- 1 g ≈ 0.03527 oz
- 28.349523125 g = 1 oz
- 100 g ≈ 3.5274 oz
- 250 g ≈ 8.8185 oz
- 1000 g ≈ 35.274 oz (≈ 1 kg)
4. Shortcuts
- Quick: oz ≈ g ÷ 28.35.
- Or: oz ≈ (g ÷ 1000) × 35.27396195.
- Very rough: oz ≈ g ÷ 30 (underestimates by ~5%).
5. Pitfalls
- Fluid ounces measure volume, not weight—don’t mix with ounces (oz) here.
- Troy ounce (31.1034768 g) is for precious metals; not used in food.
- Avoid rounding early; keep full precision, round only for display.
6. Micro Examples
10 g
= 0.35274 oz
50 g
= 1.76370 oz
250 g
= 8.81849 oz
1000 g
= 35.27396 oz
7. Mini FAQ
- Exact factor? 1 oz = 28.349523125 g.
- How many decimals? 2–3 dp for cooking, 4–6 dp for lab work.
- Store values? Prefer grams internally; convert to oz for UI.
8. Action Tip
For batch conversions, compute oz from grams using high precision and cache results; format to desired decimals only when rendering.