Convert Milligrams to Metric Tons
1 milligram (mg) equals 1 × 10⁻⁹ metric tons (t).
1 mg = 1e-9 t
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk milligram to metric ton converter to paste a column from Excel.
How to Convert Milligram to Metric Ton
- 1 mg = 1 × 10⁻⁹ t
- 1 t = 1000000000 mg
- Example: convert 15 mg to t: 15 mg = 15 × 1 × 10⁻⁹ t = 1.5 × 10⁻⁸ t
Formula
t = mg ÷ 1000000000
Derivation from SI units:
- 1 mg = 10⁻⁶ kg = 10⁻³ g
- 1 t = 1000 kg (accepted for use with the SI)
- 1 mg = 0.000001 kg ÷ 1000 kg per t = 1 × 10⁻⁹ t
Both units are defined exactly, so the factor is exact. Milligram definition: milligram; Metric Ton definition: metric ton.
Worked examples
- A reading of 20 mg converts to 2 × 10⁻⁸ t.
20 mg × 1 × 10⁻⁹ = 2 × 10⁻⁸ t - A value of 250 mg is 2.5 × 10⁻⁷ t.
250 mg × 1 × 10⁻⁹ = 2.5 × 10⁻⁷ t
Milligram to Metric Ton conversion table
| Milligrams (mg) | Metric Tons (t) |
|---|---|
| 0.1 mg | 1 × 10⁻¹⁰ t |
| 0.5 mg | 5 × 10⁻¹⁰ t |
| 1 mg | 1 × 10⁻⁹ t |
| 2 mg | 2 × 10⁻⁹ t |
| 5 mg | 5 × 10⁻⁹ t |
| 10 mg | 1 × 10⁻⁸ t |
| 20 mg | 2 × 10⁻⁸ t |
| 25 mg | 2.5 × 10⁻⁸ t |
| 50 mg | 5 × 10⁻⁸ t |
| 65 mg | 6.5 × 10⁻⁸ t |
| 81 mg | 8.1 × 10⁻⁸ t |
| 100 mg | 1 × 10⁻⁷ t |
| 200 mg | 2 × 10⁻⁷ t |
| 250 mg | 2.5 × 10⁻⁷ t |
| 325 mg | 3.25 × 10⁻⁷ t |
| 400 mg | 4 × 10⁻⁷ t |
| 500 mg | 5 × 10⁻⁷ t |
| 1000 mg | 0.000001 t |
| 2000 mg | 0.000002 t |
| 5000 mg | 0.000005 t |
Where it's used
Milligrams are used for medication doses (e.g. 500 mg tablets), while metric tons appear in vehicle and crane capacities. Both measure mass (commonly called weight), so the conversion is a fixed factor.
Milligram to other weight and mass units
| Conversion | 1 mg equals |
|---|---|
| milligram to kilogram | 0.000001 kg |
| milligram to gram | 0.001 g |
| milligram to microgram | 1000 µg |
| milligram to metric ton | 1 × 10⁻⁹ t |
| milligram to pound | 0.000002204622622 lb |
| milligram to ounce | 0.00003527396195 oz |
| milligram to stone | 1.574730444 × 10⁻⁷ st |
| milligram to short ton | 1.102311311 × 10⁻⁹ ton (US) |
| milligram to long ton | 9.842065276 × 10⁻¹⁰ ton (UK) |
| milligram to grain | 0.01543235835 gr |
| milligram to troy ounce | 0.00003215074657 oz t |
| milligram to carat | 0.005 ct |
Frequently asked questions
How many metric tons are in 1 milligram?
1 mg = 1 × 10⁻⁹ t.
How do I convert milligrams to metric tons?
Multiply the value in mg by 1 × 10⁻⁹, or divide it by 1000000000. For example, 15 mg × 1 × 10⁻⁹ = 1.5 × 10⁻⁸ t.
Is the mg to t conversion exact?
Yes. Both units are defined exactly, and 1 mg is exactly 1 × 10⁻⁹ t.
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 7, SI prefixes.
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 8, non-SI units accepted for use with the SI.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Milligrams to Metric Tons. Retrieved October 17, 2026, from https://scientificconverters.com/mass/milligrams-to-metric-tons/
IEEE
Scientific Converters, "Convert Milligrams to Metric Tons," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/mass/milligrams-to-metric-tons/