A stone is a unit of weight used primarily in the United Kingdom and Ireland to measure body weight. One stone equals 14 pounds or approx. 6.35 kilograms. It's not part of the official metric or imperial systems, but it remains a widely recognized standard in health, fitness, and everyday conversation in the UK. If someone says they weigh "11 stone," they mean 154 pounds (11 × 14).
The stone has historical roots going back to ancient Europe, where stones of specific weight were used in trade. Over time, England standardized the stone to mean 14 pounds in 1835, and that value is still used today. While most countries have adopted the metric system, the stone remains part of British culture—primarily when referring to personal weight.
How is the Stone Used: The stone is most commonly used to express body weight in the UK and Ireland. You'll often hear weights given in stone and pounds together, like "11 stone 4 pounds" instead of 158 pounds or 71.6 kg. It's rarely used in scientific, industrial, or commercial applications today. The metric system has replaced it in those contexts.
An ounce (oz) is a unit of weight commonly used in the United States and a few other countries that follow the imperial system. It plays a vital role in cooking, shopping, postal services, and precious metals measurement. One ounce is approximately equal to 28.35 grams.
There are two main types of ounces:
The word "ounce" comes from the Latin word "uncia," meaning one-twelfth. Historically, it represented 1/12 of a Roman pound. Over time, different standards emerged, with the avoirdupois and troy systems becoming the most widely used.
How Is the Ounce Used: The ounce is used in various industries and everyday tasks. Here's how it shows up in real life:
The ounce may seem like a small unit, but it’s incredibly versatile. From kitchen scales to postal counters to precious metal markets, it helps measure weight where precision matters.
1 st = 224 oz
Let’s say you want to convert 100 st to oz.
Using the formula:
100 × 224 = 22,400 oz
So, 100 st is approximately 22,400 oz.
| Stone (st) | Ounce (oz) |
|---|---|
| 1 st | 224 oz |
| 2 st | 448 oz |
| 3 st | 672 oz |
| 4 st | 896 oz |
| 5 st | 1,120 oz |
| 6 st | 1,344 oz |
| 7 st | 1,568 oz |
| 8 st | 1,792 oz |
| 9 st | 2,016 oz |
| 10 st | 2,240 oz |
| 11 st | 2,464 oz |
| 12 st | 2,688 oz |
| 13 st | 2,912 oz |
| 14 st | 3,136 oz |
| 15 st | 3,360 oz |