Ounces to Kilograms Converter

1. Core Formula

kg = oz × 0.028349523125 (exact; 5–6 decimals: 0.0283495). Reverse: oz = kg ÷ 0.028349523125.

2. Flow

1. Input ounces.
2. Multiply by 0.028349523125 → kilograms.
3. Round (2–3 dp cooking, 6+ dp lab).
4. Cross-check: 16 oz ≈ 0.454 kg (1 lb).

3. Sanity Checks

• 1 oz ≈ 0.02835 kg
• 8 oz ≈ 0.2268 kg
• 16 oz ≈ 0.4536 kg
• 32 oz ≈ 0.9072 kg
• 35.274 oz ≈ 1 kg

4. Shortcuts

• Divide ounces by 35.274 for quick kg.
• Or: (oz ÷ 16) pounds → pounds ÷ 2.20462.
• Approx mental: kg ≈ oz × 0.0283.

5. Pitfalls

• Fluid ounces ≠ weight ounces.
• Troy ounce: 31.1034768 g (not used for food).
• Truncating 0.028 → 7% error; keep at least 4 decimals.

6. Micro Examples

7. Mini FAQ

• Exact factor? 0.028349523125.
• Store results? Prefer grams (×28.349523125) then ÷1000.
• When 6+ decimals? Lab / dosing contexts.

8. Action Tip

Batch convert large ounce lists by first mapping to grams (×28.349523125) using integers, then divide by 1000 at report time to eliminate floating drift.