40 mg ≈ 4 × 10^-8 t. To convert milligrams to metric tonnes, divide by 1,000,000,000: 40 ÷ 1,000,000,000 = 4 × 10^-8.
How to convert milligrams to metric tonnes
t = mg × 1 × 10^-9
- 1 mg = 1 × 10^-9 t (and 1 t = 1,000,000,000 mg).
- Multiply the amount by the factor: 40 × 1 × 10^-9 = 4 × 10^-8.
- Answer: 40 mg ≈ 4 × 10^-8 t (rounded to 6 significant figures).
Shortcut: dividing by 1,000,000,000 gives the same result as multiplying by 1 × 10^-9.
Milligrams to Metric Tonnes table
| Milligrams (mg) | Metric Tonnes (t) |
|---|---|
| 35 mg | 3.5 × 10^-8 t |
| 36 mg | 3.6 × 10^-8 t |
| 37 mg | 3.7 × 10^-8 t |
| 38 mg | 3.8 × 10^-8 t |
| 39 mg | 3.9 × 10^-8 t |
| 40 mg | 4 × 10^-8 t |
| 41 mg | 4.1 × 10^-8 t |
| 42 mg | 4.2 × 10^-8 t |
| 43 mg | 4.3 × 10^-8 t |
| 44 mg | 4.4 × 10^-8 t |
| 45 mg | 4.5 × 10^-8 t |
| mg | t |
|---|---|
| 1 mg | 1 × 10^-9 t |
| 5 mg | 5 × 10^-9 t |
| 10 mg | 1 × 10^-8 t |
| 50 mg | 5 × 10^-8 t |
| 100 mg | 1 × 10^-7 t |
| 1,000 mg | 0.000001 t |