Convert Gram to Ounce
1 gram = 0.03527396 ounce (oz). For example, 10 gram = 0.3527396 ounce and 100 gram = 3.527396 ounce. Type any value below to convert gram to ounce both ways — it runs entirely in your browser.
Quick answer: Gram to Ounce
1 Gram = 0.03527396 Ounce (g → oz). To convert gram to ounce, multiply by 0.03527396. To convert ounce to gram, multiply by 28.34952. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common gram-to-ounce questions.
How to convert Gram to Ounce
To convert gram to ounce, multiply the number of gram by the conversion factor 0.03527396, because 1 g = 0.03527396 oz. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 oz = 28.34952 g, so you divide by 0.03527396 (or multiply by 28.34952) to turn ounce back into gram.
oz = g × 0.03527396 ·
g = oz × 28.34952
- Write down the value you want to convert, in gram.
- Multiply it by 0.03527396.
- The result is the same area/length/quantity expressed in ounce.
Gram to Ounce — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 gram is 0.1763698 ounce because 5 g × 0.03527396 = 0.1763698 oz.
| Gram | Calculation | Ounce |
|---|---|---|
| 1 g | 1 g × 0.03527396 = 0.03527396 oz | 0.03527396 oz |
| 2 g | 2 g × 0.03527396 = 0.07054792 oz | 0.07054792 oz |
| 3 g | 3 g × 0.03527396 = 0.1058219 oz | 0.1058219 oz |
| 5 g | 5 g × 0.03527396 = 0.1763698 oz | 0.1763698 oz |
| 7 g | 7 g × 0.03527396 = 0.2469177 oz | 0.2469177 oz |
| 10 g | 10 g × 0.03527396 = 0.3527396 oz | 0.3527396 oz |
| 12 g | 12 g × 0.03527396 = 0.4232875 oz | 0.4232875 oz |
| 15 g | 15 g × 0.03527396 = 0.5291094 oz | 0.5291094 oz |
| 20 g | 20 g × 0.03527396 = 0.7054792 oz | 0.7054792 oz |
| 25 g | 25 g × 0.03527396 = 0.881849 oz | 0.881849 oz |
| 50 g | 50 g × 0.03527396 = 1.763698 oz | 1.763698 oz |
| 100 g | 100 g × 0.03527396 = 3.527396 oz | 3.527396 oz |
Common Gram to Ounce conversions
These are the gram-to-ounce values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 gram = 0.03527396 ounce
- 2 gram = 0.07054792 ounce
- 2.5 gram = 0.0881849 ounce
- 3 gram = 0.1058219 ounce
- 4 gram = 0.1410958 ounce
- 5 gram = 0.1763698 ounce
- 6 gram = 0.2116438 ounce
- 7 gram = 0.2469177 ounce
- 8 gram = 0.2821917 ounce
- 9 gram = 0.3174657 ounce
- 10 gram = 0.3527396 ounce
- 12 gram = 0.4232875 ounce
- 15 gram = 0.5291094 ounce
- 20 gram = 0.7054792 ounce
- 25 gram = 0.881849 ounce
- 30 gram = 1.058219 ounce
- 50 gram = 1.763698 ounce
- 75 gram = 2.645547 ounce
- 100 gram = 3.527396 ounce
- 200 gram = 7.054792 ounce
- 500 gram = 17.63698 ounce
- 1000 gram = 35.27396 ounce
Gram to Ounce conversion chart (both directions)
The chart below converts gram to ounce and ounce to gram side by side, so it works whichever way you need. 1 gram = 0.03527396 ounce, and 1 ounce = 28.34952 gram.
| Gram → Ounce | Ounce → Gram |
|---|---|
| 0.25 g = 0.00881849 oz | 0.25 oz = 7.087381 g |
| 0.5 g = 0.01763698 oz | 0.5 oz = 14.17476 g |
| 1 g = 0.03527396 oz | 1 oz = 28.34952 g |
| 2 g = 0.07054792 oz | 2 oz = 56.69905 g |
| 3 g = 0.1058219 oz | 3 oz = 85.04857 g |
| 4 g = 0.1410958 oz | 4 oz = 113.3981 g |
| 5 g = 0.1763698 oz | 5 oz = 141.7476 g |
| 6 g = 0.2116438 oz | 6 oz = 170.0971 g |
| 7 g = 0.2469177 oz | 7 oz = 198.4467 g |
| 8 g = 0.2821917 oz | 8 oz = 226.7962 g |
| 9 g = 0.3174657 oz | 9 oz = 255.1457 g |
| 10 g = 0.3527396 oz | 10 oz = 283.4952 g |
| 12 g = 0.4232875 oz | 12 oz = 340.1943 g |
| 15 g = 0.5291094 oz | 15 oz = 425.2428 g |
| 20 g = 0.7054792 oz | 20 oz = 566.9905 g |
| 25 g = 0.881849 oz | 25 oz = 708.7381 g |
| 30 g = 1.058219 oz | 30 oz = 850.4857 g |
| 40 g = 1.410958 oz | 40 oz = 1,133.981 g |
| 50 g = 1.763698 oz | 50 oz = 1,417.476 g |
| 75 g = 2.645547 oz | 75 oz = 2,126.214 g |
| 100 g = 3.527396 oz | 100 oz = 2,834.952 g |
| 150 g = 5.291094 oz | 150 oz = 4,252.428 g |
| 200 g = 7.054792 oz | 200 oz = 5,669.905 g |
| 250 g = 8.81849 oz | 250 oz = 7,087.381 g |
| 500 g = 17.63698 oz | 500 oz = 14,174.76 g |
| 1000 g = 35.27396 oz | 1000 oz = 28,349.52 g |
Gram vs Ounce: which is bigger?
A ounce is the larger unit: one ounce equals 28.34952 grams. Put another way, you need 28.34952 grams to make a single ounce.
What is a Gram? History, origin and usage
The gram was defined in 1795 as the mass of one cubic centimetre of water at the melting point of ice. It was meant to be the everyday unit, with the kilogram as a bulk multiple — but the kilogram turned out to be the more practical size for a physical standard, so the two swapped roles and the gram became the derived one.
Grams are the normal unit for food, recipes, spices, postage, jewellery and laboratory work — anything too small to weigh comfortably in kilograms. Nutrition labels almost everywhere give protein, fat and sugar in grams.
The gram was the base unit of the old CGS (centimetre-gram-second) system used in physics before SI took over. A gram is roughly the mass of a paperclip, or of one millilitre of water.
What is a Ounce? History, origin and usage
The ounce comes from the Latin uncia, meaning a twelfth part — originally a twelfth of the Roman libra. English later reorganised its weights around the avoirdupois system, in which the pound is divided into sixteen ounces rather than twelve, and that sixteenth is the ounce used for ordinary goods today.
Ounces are used for food packaging, recipes, letters and small parcels in the United States, and for some foods and postal rates in the United Kingdom. Recipe writers use them constantly for butter, flour and cheese.
The same Latin root uncia also gave English the word "inch" — a twelfth of a foot. Confusingly, the troy ounce used for gold is a different and heavier ounce, and a "fluid ounce" is a measure of volume, not weight at all.
Convert 1 Gram to other units
It can help to see a gram next to the other units it is commonly compared with. One gram (g) is equal to:
| 1 Gram equals | Unit |
|---|---|
| 0.001 kg | Kilogram |
| 1,000 mg | Milligram |
| 1,000,000 µg | Microgram |
| 0.000001 t | Tonne |
| 0.00001 q | Quintal |
| 0.002204623 lb | Pound |
| 0.03527396 oz | Ounce |
| 0.000157473 st | Stone |
| 0.000001102311 ton (US) | Short ton |
| 0.0000009842065 ton (UK) | Long ton |
| 0.03215075 oz t | Troy ounce |
| 15.43236 gr | Grain |
| 5 ct | Carat |
Convert 1 Ounce to other units
One ounce (oz) is equal to:
| 1 Ounce equals | Unit |
|---|---|
| 0.02834952 kg | Kilogram |
| 28.34952 g | Gram |
| 28,349.52 mg | Milligram |
| 28,349,520 µg | Microgram |
| 0.00002834952 t | Tonne |
| 0.0002834952 q | Quintal |
| 0.0625 lb | Pound |
| 0.004464286 st | Stone |
| 0.00003125 ton (US) | Short ton |
| 0.00002790179 ton (UK) | Long ton |
| 0.9114583 oz t | Troy ounce |
| 437.5 gr | Grain |
| 141.7476 ct | Carat |
Tips for converting Gram to Ounce
- To go from gram to ounce, multiply by 0.03527396; to go back, divide by 0.03527396 (or multiply by 28.34952).
- For a quick mental estimate, remember that 1 gram ≈ 0.03527396 ounce, so 10 gram ≈ 0.3527396 ounce.
- The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
- Both fields update live as you type — change either side to convert in that direction.
How to use this Gram to Ounce converter
Type a number into the Gram field and the equivalent in Ounce appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Ounce field to convert the other way (ounce to gram). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.
Accuracy and method
Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 g = 0.03527396 oz), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for gram-to-ounce conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.
Sources
- NIST Special Publication 811 — Guide for the Use of the SI — publishes the exact metric equivalents of the customary weight units. The 1959 international yard-and-pound agreement fixes the international avoirdupois pound at exactly 0.453 592 37 kilogram, and the ounce, stone, grain and both tons are defined as exact fractions or multiples of that pound — so every imperial weight on this page is exact, not rounded.
- BIPM — The International System of Units (SI Brochure) — the defining document for the SI, published by the International Bureau of Weights and Measures. It fixes the base unit that this conversion resolves to, which is why the factor here can be exact rather than approximate.
Weight factors here are exact, anchored to the kilogram: the international pound is exactly 0.45359237 kg, a stone is 14 pounds, a short ton is 2,000 pounds and a long ton is 2,240, a grain is 1/7000 of a pound and a metric carat is exactly 200 mg. So the live tool and every number on this page always agree.
Frequently asked questions
- How many ounce are in 1 gram?
- 1 gram = 0.03527396 ounce (oz). To convert any number of gram to ounce, multiply by 0.03527396.
- How do I convert gram to ounce?
- Multiply the number of gram by 0.03527396. For example, 10 gram = 10 × 0.03527396 = 0.3527396 ounce, and 25 gram = 0.881849 ounce.
- How many gram are in 1 ounce?
- 1 ounce = 28.34952 gram. So to convert ounce back to gram, multiply by 28.34952.
- What is the formula to convert gram to ounce?
- ounce = gram × 0.03527396. The reverse formula is gram = ounce × 28.34952.
- How much is 100 gram in ounce?
- 100 gram = 3.527396 ounce. (And 1000 gram = 35.27396 ounce.)
- Which is bigger, a gram or a ounce?
- A ounce is larger: 1 ounce = 28.34952 gram.
- Is this gram to ounce converter accurate?
- Yes — every value is computed from the exact 0.03527396 oz per g factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert ounce to gram too?
- Yes. The converter works both ways — enter a value in either field. 1 ounce = 28.34952 gram.