Formula & Calculator
Ounces to Grams
Converts a mass measured in avoirdupois ounces into grams using the standard conversion factor.
Interpretation
g = oz × 28.3495. Converts ounces to grams. Used in cooking, jewelry, and pharmaceuticals.
Variables
| Symbol | Quantity | Unit |
|---|---|---|
| g | Mass in grams | |
| oz | Mass in ounces |
What it means
The ounce is an imperial unit of mass; the gram is a metric unit. The conversion factor is 28.349523125 (1 oz = 28.3495 g). This is common in cooking (recipe conversions), in precious metals (troy ounces are slightly different), and in medicine (drug weights). It is also used in postal services. Accurate conversion is important for precise measurements in these fields.
Worked example
Ounces to Grams – Two Examples
Real‑World| Parameter | Value |
|---|---|
| oz | 8 |
| Parameter | Value |
|---|---|
| oz | 16 |
Common mistakes
- Conversion factor: 1 ounce = 28.3495 grams – multiply ounces by this factor.
- Direction: This converts oz to g – for g to oz, use 0.035274.
- Fluid ounces: Not the same as weight ounces – do not confuse.
- Precision: Use appropriate decimal places.
- Applications: Used in cooking, chemistry, and commerce.
Applications
Ounces to grams conversion, g = oz × 28.3495, is widely used in cooking, nutrition, and pharmaceuticals. The gram is the standard metric unit of mass, while ounces are used in the US and UK. This conversion is critical for food labelling, medication dosing, and international trade. Engineers may use it for material weight calculations. By converting accurately, professionals ensure correct product weights, patient safety, and compliance with regulations. This conversion is a daily tool for anyone dealing with small masses in a global context.
- Cooking and recipe conversion between imperial and metric
- Food packaging and nutrition labelling
- Pharmaceutical dosing and compounding
- Precious metal and jewellery weight measurement
- International trade of small‑mass items
Frequently Asked Questions
The conversion is g = oz × 28.3495. This is based on the avoirdupois ounce.
Confusing standard avoirdupois ounces with troy ounces, which have a different conversion factor (31.1035 g).
Multiply ounces by 28 to get grams.
1 avoirdupois ounce = 28.349523125 g.
4 × 28.3495 = 113.398 g.
oz = g / 28.3495 = g × 0.035274.
Cooking, weight measurement, and precious metals (troy ounces).