Grams to Milligrams (g to mg) Converter – 0.25, 0.5, 1, 5 g in mg
Convert grams to milligrams and milligrams to grams. Free online g to mg calculator for science, medicine, recipes, and more.
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Grams to Milligrams (g to mg) – Instant Calculator
Grams (g)
Milligrams (mg)
Common Grams to Milligrams Examples
1 g = 1000 mg
1 g to mg
5 g = 5000 mg
5 g to mg
10 g = 10000 mg
10 g to mg
100 g = 100000 mg
100 g to mg
0.5 g = 500 mg
0.5 g to mg
1000 mg = 1 g
1000 mg to g
Grams to Milligrams Converter for Science, Medicine, and Recipes
Instantly convert grams to milligrams with this free online calculator. Perfect for science labs, medical dosing, recipes, and more. Our tool uses the official conversion rate for accurate results every time.
How to Use
Enter your value in grams, and see milligrams appear instantly. Use the swap button to convert milligrams back to grams. Copy results for lab reports, prescriptions, or recipes.
Why This Tool?
- Essential for science experiments and lab work
- Accurate for medical prescriptions and dosing
- Handy for recipes, especially for spices and supplements
- Mobile-friendly, fast, and completely free
Grams to Milligrams: Definition, History, Uses, and Examples
Definition
A gram (g) is the base unit of mass in the metric system. A milligram (mg) is a subunit, equal to one-thousandth of a gram. The conversion is simple: 1 gram = 1000 milligrams.
Milligrams (mg) = Grams (g) × 1000
Origin or History
The gram was introduced during the French Revolution as part of the metric system to standardize weights and measures. The milligram was later adopted as a subunit for precise scientific and medical measurements.
Current Use
- Science & labs: Measuring chemicals, powders, and samples in grams and milligrams.
- Medicine: Dosages for tablets, supplements, and prescriptions are often in g or mg.
- Recipes: Spices, supplements, and specialty ingredients are measured in g or mg.
- Supplements: Nutrition labels for vitamins and minerals use g and mg.
Examples
| Grams (g) | Milligrams (mg) | Example Use |
|---|---|---|
| 1 g | 1000 mg | Vitamin C supplement |
| 5 g | 5000 mg | Lab sample |
| 10 g | 10000 mg | Bulk powder |
| 0.5 g | 500 mg | Tablet dose |
| 100 g | 100000 mg | Large supplement dose |
Step-by-step example
Convert 5 grams to milligrams: 5 × 1000 = 5000 mg.
Frequently Asked Questions
How many milligrams are in 1 gram?
What is the formula to convert grams to milligrams?
Is this g to mg calculator accurate for medicine and science?
Quick reference: 1 g, 5 g, 100 g in milligrams?
Why do some supplements list ingredients in milligrams instead of grams?
How do I convert grams to milligrams in Excel?
=A1*1000 where A1 is the cell with grams. This multiplies the value in grams by 1000 to get milligrams.