Grams to Milligrams Converter

1. Core Formula

mg = g × 1000 (exact). Reverse: g = mg ÷ 1000. Also: µg = g × 1,000,000.

2. Flow

1. Input grams.
2. Multiply by 1000 → milligrams.
3. Round only for display.
4. Cross-check: 1.5 g = 1500 mg.

3. Sanity Checks

• 1 g = 1000 mg
• 0.1 g = 100 mg
• 2.5 g = 2500 mg
• 0.001 g = 1 mg

4. Shortcuts

• Shift decimal three places to the right for g → mg.
• For mg → g, shift three places left.
• For µg, shift six places right from g.

5. Pitfalls

• Don’t round intermediates in scientific calculations.
• Watch unit labels: mg vs µg vs g.
• Use thousand separators for readability with large numbers.

6. Micro Examples

7. Mini FAQ

• Exact factor? 1 g = 1000 mg.
• Decimals? Use 0–2 dp for mg totals; more for scientific work.
• Storage? Keep integers in mg to avoid floating errors.

8. Action Tip

When handling dosing or lab data, store values in mg or µg, convert to g for UI only when needed.