Ounces to Grams Converter (Oz to Grams)
Convert ounces to grams instantly for cooking and baking. 1 oz = 28.35 grams, 8 oz = 227 grams, 16 oz = 454 grams (1 pound). This converter is for weight measurements. Perfect for recipe conversions and international baking.
Ounces ⇄ Grams Calculator
Convert Ounce (oz) to Gram (g) and back. Perfect for fast cooking & baking conversions.
Key fact: 1 oz = 28.35 g (weight) • 16 oz = 1 pound = 454 g
How many grams in 1 ounce?
1 ounce (oz) = 28.35 grams
This is a weight measurement. Note: This refers to weight ounces, not fluid ounces (which measure volume).
Complete Ounces to Grams Conversion Chart
Quick reference table for converting ounces to grams. All measurements are for weight, not volume.
Common Ounce Measurements
| Ounces (oz) | Grams (g) | Pounds (lb) |
|---|---|---|
| 0.5 oz | 14.2 g | 0.03 lb |
| 1 oz | 28.35 g | 0.0625 lb |
| 2 oz | 56.7 g | 0.125 lb (1/8 lb) |
| 3 oz | 85.0 g | 0.1875 lb |
| 4 oz | 113.4 g | 0.25 lb (1/4 lb) |
| 5 oz | 141.7 g | 0.3125 lb |
| 6 oz | 170.1 g | 0.375 lb |
| 8 oz | 226.8 g | 0.5 lb (1/2 lb) |
| 10 oz | 283.5 g | 0.625 lb |
| 12 oz | 340.2 g | 0.75 lb (3/4 lb) |
| 16 oz | 453.6 g | 1 lb (1 pound) |
| 32 oz | 907.2 g | 2 lb |
Grams to Ounces
| Grams (g) | Ounces (oz) | Common Use |
|---|---|---|
| 10 g | 0.35 oz | Yeast packet, spices |
| 25 g | 0.88 oz | Cocoa powder, herbs |
| 50 g | 1.76 oz | Sugar, nuts |
| 100 g | 3.53 oz | Butter, chocolate |
| 200 g | 7.05 oz | Flour, sugar |
| 250 g | 8.82 oz | Pasta, meat |
| 500 g | 17.64 oz | 1/2 kilogram |
| 1,000 g (1 kg) | 35.27 oz | 2.2 pounds |
Ounces vs Fluid Ounces: Critical Difference
This is one of the most common sources of confusion in cooking! Ounces and fluid ounces are NOT the same thing.
⚠️ Critical Difference
| Ounces (oz): | Measure WEIGHT (mass) - like grams and pounds |
| Fluid Ounces (fl oz): | Measure VOLUME (space) - like cups and milliliters |
Real-World Examples
| Ingredient | 8 fl oz (Volume) | Weight in Ounces | Weight in Grams |
|---|---|---|---|
| Water | 8 fl oz (1 cup) | ~8.3 oz | ~235 g |
| Milk | 8 fl oz (1 cup) | ~8.6 oz | ~244 g |
| Honey | 8 fl oz (1 cup) | ~12 oz | ~340 g |
| Vegetable oil | 8 fl oz (1 cup) | ~7.7 oz | ~218 g |
Key takeaway: This converter is for weight ounces only. If you need to convert fluid ounces (volume), use our fluid ounces to milliliters converter instead.
✓ Remember: When a recipe says "8 ounces," check the context:
- For dry ingredients (flour, sugar, cheese, meat) → weight ounces (use this converter)
- For liquids (water, milk, oil) → might be fluid ounces (volume)
- Look for "oz" (weight) vs "fl oz" (volume) to be sure
How to Convert Ounces to Grams
✓ The Formula
grams = oz × 28.35
Or more precisely: grams = oz × 28.349523125
To go the other way: oz = grams ÷ 28.35 (or grams × 0.0353)
Step-by-Step Examples
Example 1: Convert 8 ounces to grams
- Start with the amount: 8 oz
- Multiply by 28.35: 8 × 28.35 = 226.8 grams
- Result: 8 oz = 227 grams (half a pound)
Example 2: Convert 1 ounce to grams
- Start with the amount: 1 oz
- Multiply by 28.35: 1 × 28.35 = 28.35 grams
- Result: 1 oz = 28.35 grams
Example 3: Convert 100 grams to ounces
- Start with grams: 100 g
- Divide by 28.35: 100 ÷ 28.35 = 3.53 oz
- Result: 100 grams ≈ 3.5 ounces
Quick Mental Math Trick
For rough estimates in the kitchen:
- 1 oz ≈ 30 grams: Slightly high but easy to remember
- 100 g ≈ 3.5 oz: Useful for metric recipes
- 16 oz = 1 lb ≈ 450 grams: Remember 1 pound
These rounded numbers are within 5% of exact values and work fine for everyday cooking.
Practical Tips for Using Ounces and Grams
⚖️ Use a Kitchen Scale
For the most accurate measurements, use a digital kitchen scale. It can measure both ounces and grams, eliminating conversion errors.
🌍 International Recipes
European and Asian recipes typically use grams. Use this converter to adapt them to ounces if you're more comfortable with imperial measurements.
🧈 Butter Measurements
In the US, butter is often sold in sticks: 1 stick = 4 oz = 113 grams. 2 sticks = 8 oz = 227 grams = 1 cup.
📦 Package Sizes
US packages show both ounces and grams. A 16 oz package is 454 grams (1 pound). Check both measurements for accuracy.
Frequently Asked Questions
How many grams in 1 ounce?
1 ounce = 28.35 grams. This is a weight measurement. The exact conversion is 28.349523125 grams, but 28.35 is close enough for cooking and baking.
How many grams in 8 ounces?
8 ounces = 226.8 grams (approximately 227 grams). This is half a pound by weight. Formula: 8 × 28.35 = 226.8 grams.
How many grams in 16 ounces?
16 ounces = 453.6 grams (approximately 454 grams). This is exactly 1 pound. Formula: 16 × 28.35 = 453.6 grams.
What's the difference between fluid ounces and ounces?
Ounces (oz) measure weight (like grams and pounds), while fluid ounces (fl oz) measure volume (like cups and milliliters). They are NOT interchangeable. This converter is for weight ounces only. For fluid ounces, use our fluid ounces converter.
How many ounces is 100 grams?
100 grams = 3.53 ounces. This is a common measurement in metric recipes. Formula: 100 ÷ 28.35 = 3.53 oz.
How many ounces is 250 grams?
250 grams = 8.82 ounces. This is slightly more than half a pound. Formula: 250 ÷ 28.35 = 8.82 oz.
How many ounces in a pound?
1 pound = 16 ounces = 453.6 grams. This is a standard US weight measurement. Half a pound = 8 ounces = 227 grams.
Should I use ounces or grams for baking?
Professional bakers prefer grams for baking because weight is more accurate than volume. A kitchen scale measuring in grams eliminates variation from scooping technique, humidity, and ingredient settling. For best results, weigh ingredients in grams whenever possible.
How many grams in 4 ounces?
4 ounces = 113.4 grams. This is 1/4 pound or 1 stick of butter. Formula: 4 × 28.35 = 113.4 grams.
Related Converters
Note
Weight measurements only. This converter is for weight ounces (oz), NOT fluid ounces (fl oz) which measure volume. Always verify which type of ounces your recipe requires. For fluid ounces, use our volume converter.