Symbol: oz (ounce), g (gram)
The ounce and gram are units of mass/weight measurement, with the ounce being part of the imperial system and the gram being part of the metric system (SI).
Formula: 1 ounce = 28.3495 grams
Common Conversions:
- 1 oz = 28.35 g
- 4 oz = 113.4 g
- 8 oz = 226.8 g
- 16 oz (1 pound) = 453.6 g
- 100 g = 3.527 oz
Ounce to Gram Converter
Quick Answer
1 oz = 28.3495 g
Formula: Gram = Ounce x 28.3495
Quick values
What are Weight and Mass Units?
Weight and mass units are used to measure how heavy an object is. The ounce (oz) is a unit of weight in the imperial and US customary systems, while the gram (g) is a unit of mass in the metric system.
The ounce is 1/16 of a pound in the avoirdupois system, which is the most commonly used ounce in everyday measurements in the United States. The gram is 1/1000 of a kilogram, the base unit of mass in the International System of Units (SI).
Learn more from Bureau International des Poids et Mesures (BIPM) or NIST.
Common Ounce to Gram Conversions
| Ounces (oz) | Grams (g) | Common Reference |
|---|---|---|
| 0.035 | 1 | Paperclip |
| 0.176 | 5 | Teaspoon of salt |
| 1 | 28.35 | Standard ounce |
| 1.76 | 50 | Chocolate bar |
| 3.53 | 100 | Small apple |
| 8.82 | 250 | Cup of flour |
| 17.64 | 500 | Package of pasta |
| 35.27 | 1000 | 1 kilogram / 2.2 pounds |
Practical Use Cases
- Cooking and Baking: Converting American recipes to metric measurements for international use
- Nutrition Tracking: Converting food weights from US nutrition labels to grams for international dietary apps
- Postal Services: Converting shipping weights for international packages
- Jewelry and Precious Metals: Converting between troy ounces and grams for gold, silver, and other precious metals
- Pharmaceutical and Medical: Converting US medication dosages to the metric system used in most countries
- Coffee and Tea: Converting traditional ounce measurements to precise gram measurements for consistent brewing
Educational Resource
This educational video explains the relationship between ounces and grams and demonstrates how to convert between these units with practical examples and applications.
Conversion Tools
Download Conversion Chart (PDF)Get our comprehensive ounces to grams conversion chart for quick reference when you're offline.
Ounces to Grams Conversion FAQs
Find answers to common questions about converting between ounces and grams.
How do you convert ounces to grams?
To convert ounces to grams, multiply the ounce value by 28.3495. For example: 1) 1 oz = 28.3495 g, 2) 2 oz = 56.699 g, 3) 4 oz = 113.398 g, 4) 16 oz (1 pound) = 453.592 g. Our calculator handles this automatically.
What is 1 ounce equal to in grams?
1 ounce equals exactly 28.3495 grams. For quick estimates: 1) 1 oz ≈ 28.35 g, 2) 2 oz ≈ 56.7 g, 3) 4 oz ≈ 113.4 g, 4) 8 oz ≈ 226.8 g, 5) 16 oz (1 pound) = 453.6 g. This conversion is standard worldwide for weight measurements.
What are common ounce to gram conversions?
Common ounce to gram conversions include: 1) 1 oz = 28.35 g, 2) 2 oz = 56.7 g, 3) 4 oz = 113.4 g, 4) 8 oz = 226.8 g, 5) 12 oz = 340.2 g, 6) 16 oz = 453.6 g, 7) 32 oz = 907.2 g.
Why do different countries use ounces or grams?
Different weight units are used because: 1) Grams are part of the metric system used globally, 2) Ounces are traditional units still used in the US and some other countries, 3) Grams are the scientific standard (SI unit), 4) Historical and cultural factors influence which unit is commonly used.
What's the easiest way to estimate ounces to grams?
For quick estimates of ounces to grams: 1) Multiply ounces by 28 (slightly less than 28.3495), 2) For example: 2 oz × 28 = 56 g, 3) 4 oz × 28 = 112 g, 4) Remember that 1 oz is about 28 g, 5) 16 oz (1 pound) is about 454 g.
How are ounces and grams used in cooking and food?
Ounces and grams in cooking: 1) US recipes typically use ounces, 2) International recipes use grams, 3) Food packaging often shows both units, 4) Professional kitchens prefer grams for precision, 5) Digital scales usually offer both measurements, 6) Nutritional information commonly uses both units.