Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Unit Converters
Ounces to Grams Converter (oz to g)
grams = ounces × 28.349523125 (avoirdupois).
US recipes still say 8 oz of chocolate. European scales only know grams. Multiply ounces by 28.35. If the recipe meant a fluid cup, you are in the wrong aisle — that is volume.
Ounces
Going the other way? Open the reverse converter
oz → g
226.796 g
8 oz of flour ≈ 226.8 g. 16 oz = 1 lb ≈ 453.6 g.
- You typed
- 8 oz
- One g is
- 0.035 oz
- How it’s calculated
- grams = ounces × 28.349523125 (avoirdupois).
Plain-English guide
Terms & how it works
Confused by a field? Read the short definitions here while you use the tool.
Ounces
The “Ounces” value used in this tool’s formula. Adjust it to see results update live.
How this calculator works
US recipes still say 8 oz of chocolate. European scales only know grams. Multiply ounces by 28.35. If the recipe meant a fluid cup, you are in the wrong aisle — that is volume. grams = ounces × 28.349523125 (avoirdupois). Example: 8 oz of flour ≈ 226.8 g. 16 oz = 1 lb ≈ 453.6 g.
grams = ounces × 28.349523125 (avoirdupois).
Example: 8 oz of flour ≈ 226.8 g. 16 oz = 1 lb ≈ 453.6 g.
When to use this Ounces to Grams
Common use cases
- US recipes still say 8 oz of chocolate. European scales only know grams. Multiply ounces by 28.35. If the recipe meant a fluid cup, you are in the wrong aisle — that is volume.
- Sanity-check with this case: 8 oz of flour ≈ 226.8 g. 16 oz = 1 lb ≈ 453.6 g.
- The relationship is: grams = ounces × 28.349523125 (avoirdupois).
Localized examples
- Unit Converters: the example on this page uses the same formula as the widget.
What you get
- Fields: Ounces
- grams = ounces × 28.349523125 (avoirdupois).
- Example on the page: 8 oz of flour ≈ 226.8 g. 16 oz = 1 lb ≈ 453.6 g.
How to Convert Ounces to Grams Step-by-Step
- 1Enter Ounces. Use the values you have, not a catalog average, unless that is all you know.
- 2grams = ounces × 28.349523125 (avoirdupois).
- 3Worked case: 8 oz of flour ≈ 226.8 g. 16 oz = 1 lb ≈ 453.6 g.
- 4Check which dictionary the other person is using — US or UK, decimal or 1,024 — then trust the number.
Governing formula
grams = ounces × 28.349523125 (avoirdupois).
8 oz of flour ≈ 226.8 g. 16 oz = 1 lb ≈ 453.6 g.
Example: set Ounces = 8, then read the result.
Variable definitions
- value
Ounces
The “Ounces” field. Default 8; typical range 0–10000.
- The conversion (grams = ounces × 28.349523125 (avoirdupois).) does not pick US vs UK gallons, SI vs binary megabytes, or Mach at altitude for you. Read the footnote on the page.
- Nothing here is uploaded for the calculation itself.
Frequently Asked Questions
Only for water-ish liquids. 8 fluid ounces of water ≈ 8 oz mass. Peanut butter is not water.
Related calculators
Unit Converters
- Troy Ounces to GramsA troy ounce is exactly 31.1034768 g. Bullion, coins, and lab reagents in precious metals use troy, not avoirdupois. A “1 oz gold coin” is 31.103 g, not the 28.35 g kitchen ounce. 12 troy ounces make a troy pound; that pound is not the grocery pound.
- Butter Sticks to GramsA US stick is ½ cup, 8 tablespoons, 4 oz, 113 g. European blocks are often 250 g. If a UK recipe says “8 oz butter,” that is two US sticks, not a European brick.
- Grams to OuncesCoffee bags, protein scoops, and postage: grams on the label, ounces in US recipes. Divide grams by 28.3495. This is the avoirdupois ounce (16 in a pound), not the troy ounce jewelers use.
- SI Gram Prefix ConverterMass prefixes attach to the gram, not the kilogram. Kilogram is already kilo + gram. Scale yottagram down to yoctogram, or milligram to microgram, without mixing in pounds. Jewelry carats and troy ounces are separate legal pages.
- Atomic Mass Units to GramsDaltons (u) are how chemists weigh atoms. Carbon-12 is defined as 12 u. The gram is 6.022 × 10²³ of those, which is why a mole of carbon is 12 g. This page is for lab sheets, not grocery bags.
- Brown Sugar Cups to GramsPacked light or dark brown sugar is about 220 g per US cup. “Packed” means you pressed it. A loose scoop can miss 30 g and flatten cookies. Light and dark weigh nearly the same; molasses is the flavor, not the scale.
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Reviews & Ratings
See what others think about this tool, then leave your own rating to help improve CalculioHub.
4.8
out of 5.0
4 reviews
Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
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