Choose a Measurement
Select a measurement and convert between different units
Single conversion
To convert from Stone (st) to Ton (t), use the following formula:
Let's convert 5 Stone (st) to Ton (t).
Using the formula:
Therefore, 5 Stone (st) is equal to Ton (t).
Here are some quick reference conversions from Stone (st) to Ton (t):
| Stones | Tons |
|---|---|
| 0.000001 st | t |
| 0.001 st | t |
| 0.1 st | t |
| 1 st | t |
| 2 st | t |
| 3 st | t |
| 4 st | t |
| 5 st | t |
| 6 st | t |
| 7 st | t |
| 8 st | t |
| 9 st | t |
| 10 st | t |
| 20 st | t |
| 30 st | t |
| 40 st | t |
| 50 st | t |
| 100 st | t |
| 1000 st | t |
| 10000 st | t |
For all Weight converters, choose units using the From/To dropdowns above.
The stone (st) is a unit of measurement equal to 14 pounds (lb).
It's part of the imperial system and is still commonly used in a few countries, especially for weighing people.
For use in international contexts or scientific applications, the stone is often converted to the metric system.
One stone is equal to exactly 6.35029318 kilograms (kg).
This precise conversion is used in international trade and science to ensure everyone is using the exact standard measurement.
Although it's an older unit, the stone remains the primary unit of measurement for body weight in the United Kingdom and Ireland.
It's common to hear someone state their weight as a combination of stone and pounds, like "12 stone 6 pounds."
The stone traces its origins back to the medieval English wool trade, where a "stone of wool" referred to a standard 14-pound measure used for buying and selling.
Stones for other goods could vary in weight—for example, a stone of glass was just 5 pounds—but over time, the 14-pound stone became the official legal standard.
A ton (t) is a standard unit of mass.
In the United States, a ton is equivalent to 2,000 pounds (lb).
That said, the exact amount can vary depending on the system you use—US, British (Imperial), or metric—so it's essential to know which "ton" you mean to avoid mistakes.
While the US short ton is widely used, it's not the only definition.
The three main types of tons have different weights:
The distinction between these units is crucial in international shipping and trade to avoid costly confusion.
The spelling of the word tells you exactly which measurement system is being used.
Using "tonne" ensures precision and is the standard unit of measurement for science and international commerce.
The word "ton" originates from the Old English "tunne," which was a large cask used for storing wine, also known as a tun.
These casks were so typical that the weight of a full one became a standard unit of measurement.
Over time, this was standardized to 2,000 pounds, becoming the ton we use in the United States today.