What is gram?
A gram is a metric unit of mass equal to one thousandth of a kilogram. It is widely used in cooking, food labelling, and the measurement of small quantities in science and pharmacy.
Real-world uses
Grams are used for food nutrition labelling, postal weight limits, cooking recipes (especially in baking where precision matters), and jewellery weights. Pharmacists measure drug dosages in grams and fractions thereof.
History
The gram was the original base unit of mass in the French metric system of 1795, defined as the mass of one cubic centimetre of water. It later became the base unit in the CGS system before the kilogram took precedence in SI.
Common mistakes
Confusing grams with grains (1 grain ≈ 0.065 g), a common error in pharmaceutical contexts. Also, mistaking "g" for "G" in digital contexts where G means giga.
What is short ton (US)?
A short ton is a unit of mass used primarily in the United States, equal to 2,000 pounds. It is used in industries such as mining, agriculture, and freight transportation.
Real-world uses
The short ton is the standard ton in US commerce and industry, used for coal, grain, and bulk commodity trading. HVAC cooling capacity was traditionally rated in tons (1 ton of refrigeration ≈ cooling of 1 short ton of ice per day).
History
The short ton of 2,000 pounds became standard in the United States as a simplified version of the older English long ton. It gained legal definition in US commerce during the 19th century and remains the default "ton" in American industry.
Common mistakes
Assuming "ton" means the same thing globally. In the US it means 2,000 lb (short ton), in the UK it traditionally meant 2,240 lb (long ton), and internationally it usually means 1,000 kg (metric tonne).
When is this conversion used?
Converting between gram and short ton (US) is common when working across metric and imperial systems, such as international trade, travel between countries with different measurement standards, or following instructions from a different region. Cooking recipes and food packaging often switch between grams and ounces, especially when adapting recipes from different culinary traditions.
Worked examples
1 gram = 0.0000011 short ton (US)
1 short ton (US) = 907.18474 kilogram
How to convert gram to short ton (US)
To convert gram to short ton (US), multiply the value by 0.0000011.
To convert short ton (US) back to gram, multiply by 907,184.74.
Measurement standards
The kilogram is defined by fixing the Planck constant to exactly 6.62607015 × 10⁻³⁴ joule-seconds, as established at the 26th General Conference on Weights and Measures in 2018. This ended the last SI definition based on a physical artefact.
Did you know?
The International Prototype of the Kilogram, a platinum-iridium cylinder stored near Paris since 1889, was found to have drifted by about 50 micrograms relative to its copies over a century — roughly the mass of a fingerprint.
Quick reference: gram to short ton (US)
| gram | short ton (US) |
|---|---|
| 0.1 | 1.102311e-07 |
| 0.5 | 5.511557e-07 |
| 1 | 0.0000011 |
| 2 | 0.0000022 |
| 5 | 0.00000551 |
| 10 | 0.00001102 |
| 25 | 0.00002756 |
| 50 | 0.00005512 |
| 100 | 0.00011023 |
| 250 | 0.00027558 |
| 500 | 0.00055116 |
| 1,000 | 0.00110231 |
Common values
| gram | short ton (US) | |
|---|---|---|
| A paperclip | 1,000 gram | 0.00110231 short ton (US) |
| A smartphone | 175,000 gram | 0.19290448 short ton (US) |
| A bag of sugar | 1,000 gram | 0.00110231 short ton (US) |
| Average adult human | 70,000 gram | 0.07716179 short ton (US) |
| A small car | 1,200,000 gram | 1.32277357 short ton (US) |