Ounces to Grams Converter
Convert ounces to grams instantly with our free online tool. Perfect for cooking, baking, nutrition labels, and portion control. Accurate oz to g results in real-time.
Weight ConverterThe quick answer for 1 Ounces — type any value below for the exact result
Ounces
Grams
oz to g Conversion Formula
To convert ounces to grams, multiply the ounce value by 28.3495. This factor comes from the international avoirdupois ounce, which is defined as exactly 28.349523125 grams.
Ounces and Grams Explained
Ounces (oz)
An ounce (oz) is the fine-weight unit of the US customary and imperial systems, defined as exactly 28.349523125 g — roughly the weight of a slice of bread or five US quarters. Sixteen ounces make one pound, so the ounce covers the space where pounds are too coarse: sandwich slices at the deli, espresso doses, snack packs, and first-class letters all live between a fraction of an ounce and about 16 oz.
Where it is used: Ounces dominate packaged-food labels, postal rates, and kitchen recipes in the United States, and they still appear alongside grams on UK and Canadian packaging.
Origin: The ounce descends from the Roman uncia, one twelfth of a libra. The avoirdupois ounce was fixed internationally in 1959 at exactly 28.349523125 grams.
Grams (g)
A gram (g) is the base building block of metric mass, equal to one thousandth of a kilogram. It sits on the scale of everyday precision: a paperclip weighs about 1 g, a raisin 0.5 g, and a chocolate bar 45 g. Nutrition panels, pharmacy balances, and spice measures quote grams directly, and because the metric system moves in tens, converting grams to kilograms or milligrams is just a decimal shift.
Where it is used: Grams are the universal unit for kitchen scales, nutrition labels, laboratory work, and retail packaging in every metric country — that is, nearly the entire world.
Origin: The gram was defined in 1795 as the mass of one cubic centimeter of melting ice water, one of the two founding units of the metric system alongside the meter.
Ounces to Grams Conversion Table
| Ounces (oz) | Grams (g) |
|---|---|
| 0.25 oz | 7.087375 g |
| 0.5 oz | 14.17475 g |
| 1 oz | 28.3495 g |
| 1.5 oz | 42.52425 g |
| 2 oz | 56.699 g |
| 3 oz | 85.0485 g |
| 4 oz | 113.398 g |
| 5 oz | 141.7475 g |
| 6 oz | 170.097 g |
| 8 oz | 226.796 g |
| 10 oz | 283.495 g |
| 12 oz | 340.194 g |
| 14 oz | 396.893 g |
| 16 oz | 453.592 g |
| 18 oz | 510.291 g |
| 20 oz | 566.99 g |
| 24 oz | 680.388 g |
| 28 oz | 793.786 g |
| 32 oz | 907.184 g |
Grams to Ounces Conversion Table
| Grams (g) | Ounces (oz) |
|---|---|
| 5 g | 0.1763699536 oz |
| 10 g | 0.3527399072 oz |
| 20 g | 0.7054798145 oz |
| 30 g | 1.0582197217 oz |
| 50 g | 1.7636995361 oz |
| 75 g | 2.6455493042 oz |
| 100 g | 3.5273990723 oz |
| 125 g | 4.4092488404 oz |
| 150 g | 5.2910986084 oz |
| 200 g | 7.0547981446 oz |
| 250 g | 8.8184976807 oz |
| 300 g | 10.5821972169 oz |
| 400 g | 14.1095962892 oz |
| 500 g | 17.6369953615 oz |
Ounces to Grams in Everyday Objects
Common real-world examples that make Ounces and Grams easy to picture at a glance.
| Ounces (oz) | Grams (g) | |
|---|---|---|
| A slice of sandwich bread | 1 oz | 28.3495 g |
| A large strawberry | 0.5 oz | 14.17475 g |
| A slice of cheese | 1.5 oz | 42.52425 g |
| A stick of butter | 4 oz | 113.398 g |
| A can of tuna | 5 oz | 141.7475 g |
| A deck of playing cards | 3.5 oz | 99.22325 g |
When You Need Ounces to Grams Conversions
Ordering at a US Deli Counter
Deli clerks slice to the ounce, but imported charcuterie packaging lists grams. Knowing 4 oz of roast beef is 113.398 g lets you compare supermarket prosciutto to the counter price without guesswork.
Baking US Recipes on a Metric Scale
American pastry books specify chocolate and nuts in ounces. Converting 6 oz of chopped chocolate to 170.097 g keeps cocoa-to-flour ratios exact, which is where cakes succeed or fail.
Reading Serving Sizes on Labels
US serving sizes are printed in ounces while the nutrient columns are metric. A 1 oz serving of trail mix is 28.35 g, and converting lets you compare sodium per gram across brands.
Blending Loose-Leaf Tea
Tea suppliers sell leaf by the ounce while blend formulas are recorded in grams. A 2 oz pouch of earl grey converts to 56.699 g, keeping batch-to-batch flavor consistent.
Related Weight Conversions
How to Use
-
1
Enter Your Weight in Ounces
Type the ounce value — for example, enter 6 for a 6 oz can of tuna or a 6 oz salmon fillet
-
2
See the Gram Equivalent
The result appears instantly: 6 oz = 170.097 g, ready for your metric kitchen scale
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3
Copy or Reverse
Copy the result or click Swap to convert grams back to ounces
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4
Check the Table
Browse the conversion table for common values like 4 oz = 113.398 g or 12 oz = 340.194 g
Why Use Be Converter?
Instant Conversion
Get precise ounce to gram results in real-time as you type — type 6 oz and see 170.097 g before you can pick up the whisk
Baking-Grade Precision
Uses the exact avoirdupois standard of 1 oz = 28.3495 g, so a full pound of 16 oz lands on 453.592 g exactly as your metric scale expects
Kitchen Reference Table
Common deli and recipe weights at a glance — from 1 oz (28.35 g) to 32 oz (907.2 g) — for checks without calculation
Swap with One Click
Toggle between oz and g instantly — ideal when checking a US package label against a European kitchen scale
Free & Unlimited
No registration required. Convert as many weights as you need, from single-ounce spice packs to 40 oz bulk bags — always free
Completely Private
All calculations run locally in your browser. Your ingredient and portion data never leaves your device
Frequently Asked Questions
How many grams are in 1 ounce?
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Is a fluid ounce the same as a regular ounce?
Does this converter work for gold and silver?
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How many grams is 12 oz?
Is 30 g about 1 ounce?
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About Ounces to Grams Converter
Our free online ounces to grams converter provides instant, accurate weight conversions for kitchen, counter, and classroom. Whether you are decoding an American recipe that lists chocolate in ounces while your scale reads grams, checking deli portions, comparing nutrition serving sizes, or weighing mail for international postage, this tool delivers reliable results. The ounce belongs to the US customary system, where 16 ounces make a pound, while the gram anchors the metric system used across the rest of the world. Our converter applies the exact international avoirdupois standard of 1 oz = 28.3495 g.
Expert Tips for oz to g Conversion
Memorize four anchors and interpolate the rest: 1 oz = 28.35 g, 4 oz = 113.4 g, 8 oz = 226.8 g, and 16 oz = 453.592 g. Most recipe amounts fall between them.
Butter blocks differ by market: a US stick is 4 oz (113.398 g), while a standard European block is 250 g (8.82 oz). Converting before substituting prevents greasy or dry bakes.
Restaurant protein portions track ounces — 3 oz = 85 g, 6 oz = 170.1 g, 8 oz = 226.8 g. Ordering a 6 oz fillet in a metric country means asking for about 170 g.
Newborn weights in the US mix pounds and ounces; the ounce component converts directly — the 8 oz in a 7 lb 8 oz baby is 226.796 g, or roughly half the metric 3.402 kg total.
International postage rates jump by the ounce, not the gram. A letter weighing 1.5 oz is 42.5 g, and knowing the 28.3495 factor tells you exactly which gram bracket it lands in.