Hectograms to Stones
An instant hectograms-to-stones converter, with the formula and a reference table below.
| Hectograms | Stones |
|---|---|
| 1 hg | 0.015747 st |
| 2 hg | 0.031495 st |
| 3 hg | 0.047242 st |
| 5 hg | 0.078737 st |
| 10 hg | 0.157473 st |
| 25 hg | 0.393683 st |
| 50 hg | 0.787365 st |
| 100 hg | 1.57473 st |
How to use
- Enter a value in the Hectograms field.
- The Stones figure appears immediately — no button to press.
- Typing in the Stones field converts back to Hectograms the same way.
- Use the reference table for the values that come up most often.
Hectograms to Stones formula
To convert hectograms to stones, multiply by 0.0157473044.
st = hg × 0.0157473044
Why this factor: the hectogram and the stone are both defined against the kilogram, so dividing one definition by the other gives 0.0157473044 directly. Both definitions are set out in full below.
To go the other way, divide by 0.0157473044 — or use the Stones to Hectograms converter, which is the same calculation reversed.
Worked example
Given 150 hg, multiplying by 0.0157473044 yields 2.362096 st.
150 hg × 0.0157473044 = 2.362096 st
The converter above does this for any value you type, in either direction.
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'.
What is a stone?
A stone is fourteen pounds, still the customary unit for body weight in Britain and Ireland.
Definition: Fourteen avoirdupois pounds, so exactly 6.35029318 kilograms.
Where it is used: Personal body weight in the UK and Ireland, where weight is usually given as stones and pounds.
Worth knowing: Effectively unused in the United States, where body weight is quoted in pounds alone.
Hectograms vs Stones
The hectogram is a metric unit while the stone is an imperial 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 stones are in a hectogram?
One hectogram equals 0.0157473044 stones.
What is the formula to convert hectograms to stones?
Multiply the number of hectograms by 0.0157473044. To reverse it, divide by 0.0157473044 instead.
How do I convert stones back to hectograms?
Divide by 0.0157473044, which is the same as multiplying by 63.5029318.
How many stones are in 10 hectograms?
10 hg works out to 0.157473 st.
Is there anything to watch out for with stones?
Effectively unused in the United States, where body weight is quoted in pounds alone.
How is the hectogram defined?
Exactly 0.1 kilogram by SI prefix definition.