Convert Ounces to Milligrams
1 oz = 28349.5 mg
Conversion Table
| ounces (oz) | milligrams (mg) |
|---|---|
| 0.5 | 14174.75 |
| 1 | 28349.5 |
| 2 | 56699 |
| 5 | 141747.5 |
| 10 | 283495 |
| 25 | 708737.5 |
| 50 | 1417475 |
| 100 | 2834950 |
| 250 | 7087375 |
| 500 | 14174750 |
| 1000 | 28349500 |
How to Convert ounces to milligrams
To convert ounces to milligrams, multiply the value by the conversion factor:
For example: 10 oz = 283495 mg
Related Converters
About ounces and milligrams
The Conversion Formula
To convert ounces to milligrams, multiply the value by the conversion factor: 1 oz = 28349.5 mg. For a worked example, suppose you need to convert 25 oz to milligrams: 25 × 28349.5 = 708737.5 mg. To convert in the opposite direction, divide by 28349.5, or equivalently multiply by 0.000035274.
About ounces
The ounce derives from the Roman 'uncia', meaning 'one twelfth', originally referring to 1/12th of a Roman pound. However, in the modern avoirdupois system used in the US and UK, an ounce is 1/16th of a pound. This unit is critical for precision in non-metric cooking and for measuring precious metals (though gold uses the 'troy ounce', which is slightly heavier). ounces are commonly used in Steak and meat portioning, Postal letter weights, Precious metals (Troy oz), and Liquid volume (fluid oz - different unit), Spices and seasonings.
A AA battery weighs just under 1 ounce.
About milligrams
The milligram (mg) is a unit of mass equal to one-thousandth of a gram. Its precision became indispensable with the rise of modern medicine and chemistry. Before the milligram, accurate dosing of potent medicines was dangerous and difficult. Today, it is the standard unit for determining the potency of pills, capsules, and vitamins, ensuring safety and efficacy in healthcare. milligrams are commonly used in Prescription medication dosages, Caffeine content in coffee, Sodium content in food, and Water quality testing, Gemstone grading (alongside carats).
A grain of sand weighs roughly 1 to 5 milligrams.
When Would You Convert ounces to milligrams?
Converting between ounces and milligrams is one of the most common weight conversions. You might need this conversion when working with international specifications, following instructions written for a different measurement system, or comparing values across different standards. Having the conversion factor (1 oz = 28349.5 mg) memorized or bookmarked can save time in professional and everyday contexts alike.