Megagram is 1000000 gram units.
Megagrams to Milligrams Converter — Mg to mg
Convert Megagram (Mg) to Milligram (mg) using the exact conversion factor (1 megagram = 1,000,000,000 milligram). See the formula, worked examples, and conversion table.
Megagrams to Milligrams converter
Converter
Mass/Weight Converter
Convert SI mass, imperial weight, jewelry, atomic, and astronomy mass units.
Context values
Some unit families need one extra value for a physically accurate result.
Milligram is 0.001 gram units.
Result = input x 1000 / 1e-6.
Mass uses the kilogram as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Megagrams to Milligrams
Weight conversions between Megagram and Milligram come up constantly in everyday commerce, shipping, and cooking, since US packaging is usually labeled in pounds while most of the rest of the world uses kilograms. Specifically: Megagram is 1000000 gram units, and milligram is 0.001 gram units.
Formula
milligrams = megagrams × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 megagram equals 1000 base units, and 1 milligram equals 0.000001 base units, so dividing one by the other gives the direct megagram-to-milligram factor of 1000000000.
Simple example
1 Mg × 1000000000 = 1,000,000,000 mg
1 megagram = 1,000,000,000 milligrams.
Real-world example
50 Mg × 1000000000 = 50,000,000,000 mg
50 megagrams = 50,000,000,000 milligrams.
Conversion table
| Megagram (Mg) | Milligram (mg) |
|---|---|
| 1 Mg | 1,000,000,000 mg |
| 5 Mg | 5,000,000,000 mg |
| 10 Mg | 10,000,000,000 mg |
| 25 Mg | 25,000,000,000 mg |
| 50 Mg | 50,000,000,000 mg |
| 100 Mg | 100,000,000,000 mg |
Reverse conversion: Milligram to Megagram
1 mg × 1e-9 = 1e-9 Mg
1 milligram = 1e-9 megagrams.
megagrams = milligrams × 1e-9
For a page dedicated to this direction, see Milligram to Megagram.
Understanding the Megagram (Mg)
Megagram is 1000000 gram units.
Understanding the Milligram (mg)
Milligram is 0.001 gram units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milligrams are in 1 megagram?
1 megagram equals 1,000,000,000 milligrams, using the exact defined conversion factor rather than an estimate.
How do I convert megagram to milligram?
Multiply the megagram value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert milligram back to megagram?
Use the reverse factor: 1 milligram equals 1e-9 megagrams. You can also use the swap control in the converter above to flip the direction instantly.
What is a megagram?
Megagram (Mg) is a unit of mass/weight.
What is a milligram?
Milligram (mg) is a unit of mass/weight.
Is the megagram to milligram conversion exact?
Yes. Both megagram and milligram are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 used above is exact to as many digits as you choose to display.