How Do You Convert Milligrams to Grams?
Divide the number of milligrams by 1,000 to get grams. The formula is: Grams = Milligrams / 1,000. Since "milli" means one-thousandth, this is simply moving the decimal point three places to the left.
Leah Novak measures baking ingredients precisely. Her sourdough starter recipe calls for 3 mg of ascorbic acid (vitamin C) per loaf to strengthen gluten. That is 0.003 g — too small for a kitchen scale. She dissolves a 500 mg (0.5 g) vitamin C tablet in 500 mL of water, creating a 1 mg/mL solution, then adds 3 mL to each batch. Milligram precision matters in professional baking.
Medicine Dosage Reference
| Medicine | Common Dose (mg) | In Grams |
|---|---|---|
| Baby aspirin | 81 mg | 0.081 g |
| Ibuprofen (standard) | 200 mg | 0.2 g |
| Ibuprofen (extra strength) | 400 mg | 0.4 g |
| Acetaminophen (regular) | 500 mg | 0.5 g |
| Acetaminophen (extra) | 650 mg | 0.65 g |
| Amoxicillin | 500 mg | 0.5 g |
| Metformin | 500-1,000 mg | 0.5-1.0 g |
| Caffeine (1 cup coffee) | ~95 mg | ~0.095 g |
| Daily multivitamin (total) | ~1,500 mg | ~1.5 g |
Nutrition and Daily Values
Reading Nutrition Labels
Nutrition labels use milligrams for minerals, vitamins, and sodium. The daily value for sodium is 2,300 mg (2.3 g). A single slice of bread contains about 150 mg (0.15 g) of sodium, while a fast-food burger might have 1,000 mg (1 g) — nearly half the daily limit in one meal.
Supplements and Vitamins
Vitamin supplements list doses in mg or mcg. Vitamin C tablets typically come in 500 mg (0.5 g) or 1,000 mg (1 g) doses. Calcium supplements are 500-600 mg (0.5-0.6 g) per tablet. Maya tracks her daily intake and totals about 1,800 mg (1.8 g) of calcium from food and supplements combined — within the recommended 1,000-1,200 mg daily range.
Caffeine Tracking
An 8-ounce cup of coffee contains about 95 mg (0.095 g) of caffeine. Energy drinks range from 70-300 mg per serving. The FDA recommends a maximum of 400 mg (0.4 g) of caffeine per day for healthy adults — about four cups of coffee. Tom Brewer limits himself to two cups, keeping his intake around 190 mg (0.19 g).