Ounces to Hectograms
An instant ounces-to-hectograms converter, with the formula and a reference table below.
| Ounces | Hectograms |
|---|---|
| 1 oz | 0.283495 hg |
| 2 oz | 0.56699 hg |
| 3 oz | 0.850486 hg |
| 5 oz | 1.417476 hg |
| 10 oz | 2.834952 hg |
| 25 oz | 7.087381 hg |
| 50 oz | 14.174762 hg |
| 100 oz | 28.349523 hg |
How to use
- Enter a value in the Ounces field.
- The Hectograms figure appears immediately — no button to press.
- Typing in the Hectograms field converts back to Ounces the same way.
- Use the reference table for the values that come up most often.
Ounces to Hectograms formula
To convert ounces to hectograms, multiply by 0.283495231.
hg = oz × 0.283495231
Why this factor: the ounce and the hectogram are both defined against the kilogram, so dividing one definition by the other gives 0.283495231 directly. Both definitions are set out in full below.
To go the other way, divide by 0.283495231 — or use the Hectograms to Ounces converter, which is the same calculation reversed.
Worked example
Given 2 oz, multiplying by 0.283495231 yields 0.56699 hg.
2 oz × 0.283495231 = 0.56699 hg
The converter above does this for any value you type, in either direction.
What is an ounce?
An ounce is one sixteenth of a pound, used for small weights in the US.
Definition: Exactly 28.349523125 grams — one sixteenth of the international avoirdupois pound.
Where it is used: Food packaging, postal weights, and coffee and spice quantities in the US.
Worth knowing: Not the same as a fluid ounce, which measures volume. Also distinct from the troy ounce (31.103 g) used for gold and silver.
What is a hectogram?
A hectogram is 100 grams — one tenth of a kilogram.
Definition: Exactly 0.1 kilogram by SI prefix definition.
Where it is used: Seen on Italian and some other European food labels and deli scales, where prices are quoted per 'etto'.
Ounces vs Hectograms
The ounce is an imperial unit while the hectogram is a metric unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many hectograms are in an ounce?
One ounce equals 0.283495231 hectograms.
What is the formula to convert ounces to hectograms?
Multiply the number of ounces by 0.283495231. To reverse it, divide by 0.283495231 instead.
How do I convert hectograms back to ounces?
Divide by 0.283495231, which is the same as multiplying by 3.52739619.
How many hectograms are in 10 ounces?
10 oz works out to 2.834952 hg.
Is there anything to watch out for with ounces?
Not the same as a fluid ounce, which measures volume. Also distinct from the troy ounce (31.103 g) used for gold and silver.
How is the ounce defined?
Exactly 28.349523125 grams — one sixteenth of the international avoirdupois pound.