What is 16 ounces in grams?

16 ounces (one pound) equals approximately 453.59 grams. This is useful when scaling recipes.

How do I convert ounces to grams for baking?

For precise baking, always use 28.35 grams per ounce. A kitchen scale set to grams gives more accurate results than measuring cups.

Why do professional bakers use grams instead of ounces?

Grams provide more precision because they're smaller units. A difference of a few grams won't throw off a recipe, but a few ounces can.

What is 8 ounces of butter in grams?

8 ounces of butter equals 227 grams, which is one standard US stick of butter (2 sticks = 1 cup).

How do I convert fluid ounces to grams?

Fluid ounces measure volume, not weight. For water, 1 fluid ounce ≈ 29.57 grams. For other liquids, it depends on density.

Ounces to Grams Converter | oz to g Calculator for Baking

Conversion Formula

g = oz × 28.3495

To convert ounces to grams, multiply the ounce value by 28.3495. One ounce equals approximately 28.35 grams.

Complete Guide to Ounces to Grams Conversion

What is a Ounces?

The ounce (oz) is a unit of mass in the imperial system. The avoirdupois ounce, used for most food and everyday items, equals exactly 28.349523125 grams. There's also the troy ounce (31.1g) used for precious metals, which is different.

What is a Grams?

The gram (g) is the base unit of mass in the metric system, equal to one-thousandth of a kilogram. It's the global standard for scientific measurements and is preferred in professional cooking for its precision and consistency.

How the Conversion Works

Multiplying ounces by 28.3495 converts weight from imperial to metric. This factor comes from the 1959 international agreement that defined the avoirdupois pound as exactly 453.59237 grams, making one ounce (1/16 pound) equal to 28.349523125 grams.

Why This Conversion Matters

In baking especially, precision matters. Flour measured by volume can vary by 30% depending on technique, but weighing in grams ensures consistency. Converting ounces to grams lets you use the more accurate measurement system.

Scientific Context

The gram was originally defined as the mass of one cubic centimeter of water at 4°C (its maximum density). Today, the kilogram (1000 grams) is defined by the Planck constant, making it one of the most precisely defined units.

Step-by-Step Conversion Guide

Follow these steps to convert ounces to grams manually:

Start with your value in ounces

Example: You want to convert 4 oz

Apply the conversion formula

Use the formula: g = oz × 28.3495

Calculate the result

4 oz = 113.398 g

✓

Verify your answer

Use our calculator above to double-check your manual calculation.

Quick Mental Math Tip

To convert ounces to grams, multiply the ounce value by 28.3495. One ounce equals approximately 28.35 grams.

Common Conversions

Ounces to Grams conversion table
Ounces (oz)	Grams (g)	Grams → Ounces
1 oz	28.3495	1 g = 0.0353 oz
2 oz	56.699	2 g = 0.0705 oz
4 oz	113.398	4 g = 0.1411 oz
6 oz	170.097	6 g = 0.2116 oz
8 oz	226.796	8 g = 0.2822 oz
10	283.495	10 g = 0.3527 oz
12 oz	340.194	12 g = 0.4233 oz
16 oz	453.592	16 g = 0.5644 oz
24	680.388	24 g = 0.8466 oz
32	907.184	32 g = 1.1288 oz

Did You Know?

Weight conversions between oz and g are essential in international trade, where different countries use different measurement systems.

This converter is used by thousands of people daily for quick reference. Bookmark it for instant access.

Popular Ounces to Grams Conversions

1 oz= 28.35 g 2 oz= 56.7 g 4 oz= 113.4 g 6 oz= 170.1 g 8 oz= 226.8 g 12 oz= 340.19 g 16 oz= 453.59 g

When You'll Need This Conversion

Precision Baking

Convert recipe ingredients from American ounces to grams for more accurate and consistent baking results.

International Recipes

Adapt recipes from US cookbooks that use ounces to work with metric kitchen scales.

Nutritional Tracking

Convert food portions to grams for accurate calorie and macro tracking with nutrition apps.

Coffee & Tea Brewing

Specialty coffee recipes often specify beans in grams. Convert from ounce-labeled bags for perfect ratios.

Pro Tips for Accurate Conversions

Invest in a digital kitchen scale

Measuring by weight (grams) is far more accurate than volume. A $20 scale will transform your baking.

Use 28g as your quick reference

For mental math, 1 oz ≈ 28g. This is accurate within 1% and easy to remember.

Weigh ingredients directly into your bowl

Use the tare function to zero out between ingredients. No measuring cups to wash!

Know your butter conversions

1 stick = 4 oz = 113g. Half stick = 2 oz = 57g. This comes up constantly in baking.

Common Mistakes to Avoid

Confusing fluid ounces with weight ounces

Fluid ounces (fl oz) measure volume while ounces (oz) measure weight. A fluid ounce of honey weighs more than a fluid ounce of water.

When a recipe says "4 oz butter," it means weight. When it says "4 fl oz milk," it means volume (½ cup).

Using cup measurements from different countries

A US cup is 237ml, an Australian cup is 250ml, and a Japanese cup is 200ml. This causes recipe failures.

When possible, convert to grams. 1 cup flour ≈ 120-130g (varies by type and how you measure).

Not accounting for ingredient density

One ounce of flour takes up more space than one ounce of sugar because flour is less dense.

Always weigh ingredients when precision matters. A cup of flour can vary by 30% depending on how it's scooped.

History & Background

The ounce has roots in ancient Rome, where the "uncia" was 1/12 of a Roman pound. The gram was created during the French Revolution as part of the metric system, defined as the mass of one cubic centimeter of water.

Key Milestones

~27 BC

Romans used the "uncia" (ancestor of the ounce) as 1/12 of a pound.

1795

The gram was introduced in France as part of the metric system.

1959

The international avoirdupois ounce was defined as exactly 28.349523125 grams.

1970s

Professional bakers worldwide began adopting grams for precision.

2000s

Home bakers increasingly switched to weighing ingredients in grams for consistency.

Global Usage Today

The gram is used worldwide for cooking and baking precision. Ounces remain common in the US and UK for food packaging and recipes, but professional kitchens globally prefer grams.