Ton (Short) To Kilogram Converter

1. Leave the direction on Short tons to kilograms, or flip it to change kilograms into US tons.
2. Enter the short tons from a US bill of lading, spec sheet or scale ticket. Decimals are fine.
3. Read the kilograms. The cards also give metric tonnes, pounds, and how many kilograms lighter the load is than the same count of tonnes.

A short ton is exactly 907.18474 kilograms. It is the US customary ton of 2,000 avoirdupois pounds, also called the net ton. Its symbol on US scales is tn.

The short ton is what Americans mean by "ton". Handbook 44 notes that a plain ton in the US is understood as the 2,000 lb ton. It is used for gravel, scrap metal, coal and hay.

The kilogram is the SI base unit of mass. Most countries, science and world trade use the kilogram and the metric tonne of 1,000 kg. So a US short ton figure often has to become kilograms for export papers, a lab report or a foreign buyer.

A short ton is lighter than both other tons. It is about 0.907 of a metric tonne and exactly 0.892857 of a UK long ton, which is 2,240 lb.

You multiply the short tons by 907.18474, which is 2,000 x 0.45359237.

1. Start with the pounds in one short ton: 2,000 lb.
2. Multiply by the exact kilograms in one pound: 2,000 x 0.45359237 = 907.18474 kg.
3. Multiply that factor by your tons. For 3 tons: 3 x 907.18474 = 2,721.55422 kg.

Because both steps are exact, the factor has only 8 significant figures and never repeats. Rounding it to 907.2 kg adds about 0.002 percent, which is fine for planning.

Export load. A US supplier ships 18 short tons of recycled paper. 18 x 907.18474 = 16,329.32532 kg, or about 16.33 t on the metric invoice.

Road limit in kg. The 80,000 lb federal gross limit is 40 short tons. 40 x 907.18474 = 36,287.3896 kg. A metric reader sees that as just under 36.3 t.

Small order. A quarter ton of mulch is 0.25 x 907.18474 = 226.796185 kg. That is the same as 500 lb. For a quick pound-to-kilogram check on smaller items, try the kg to lbs converter.

Reverse. A European quote lists 2,500 kg. 2,500 / 907.18474 = 2.75578 short tons, which is 5,511.56 lb.

The factor is fixed, so these points decide whether your kilogram figure is right.

Confirming It Is a Short Ton

US data almost always means the short ton. Canadian and UK data may not. If a source says long, gross or imperial ton, you need 1,016.0469088 kg instead.

Precision of the Source

A reading of "12 tons" from a yard scale might mean anything from 11.95 to 12.05 tons. Converting it to 10,886.21688 kg does not make it that precise. Round the kilograms to match the scale.

Moisture and Packaging

Bulk goods such as grain, wood chips and sand can gain or lose water. Pallets, bags and drums add mass too. Convert the figure that matches the goods you are paying for.

Reporting Units

Some forms ask for metric tonnes, some for kilograms. The tonnes card saves a second step when the form wants t.

A metric tonne is 92.81526 kg heavier than a short ton, so it is about 10.2 percent bigger.

NIST gives 0.91 as a quick multiplier for short tons to metric tons. That shortcut runs about 0.3 percent high, while tons x 900 kg runs 0.8 percent low. For the full metric picture, the metric to imperial converter covers other units.

Import and Export Papers

Shipping and customs documents outside the US state mass in kilograms. Convert the US ton figure once and use the kilograms on every form.

Engineering and Materials

Load tables in metric standards use kilograms or kilonewtons. A US crane or beam rating in tons has to be changed to kilograms first. The steel weight calculator gives member weights to compare.

School and Science Work

Physics problems expect SI units. A 2-ton car in a US textbook is 1,814.36948 kg before you use it in a momentum or energy sum.

Every value is exact, computed as short tons x 907.18474 kg, with metric tonnes as kg / 1,000.

1. Treating a Short Ton as 1,000 Kg

That reads a US ton as a tonne. The kilograms come out 10.2 percent too high, which is 928 kg too much on 10 tons.

2. Using the Long Ton Factor

Multiplying by 1,016.05 gives the UK ton. On a US figure that adds 12 percent.

3. Dividing Instead of Multiplying

Tons to kilograms must make the number bigger. If 5 tons turns into 0.0055, the operation is backward.

4. Writing MT for Metric Tons

The SI symbol for the tonne is t. MT is not a standard symbol and is easy to misread, so spell the unit out on forms.

5. Rounding the Factor to 907

That drops 0.18474 kg per ton. On a 1,000 ton contract, the gap is about 185 kg.

The short ton to kilogram step is exact, so the only error is display rounding at 12 significant figures.

One US short ton is exactly 907.18474 kg. Round it to 907.2 kg for everyday use.

There are 1.10231 short tons in 1,000 kg. So one metric tonne is a little more than one US ton.

Only a metric tonne is 1,000 kg. A US short ton is 907.18474 kg, and a UK long ton is 1,016.0469088 kg.

Two US short tons are 1,814.36948 kg. That is about 1.81 metric tonnes, or 4,000 lb.

Divide the kilograms by 900 and then take off about 0.8 percent. For 4,500 kg, 4,500 / 900 = 5, minus 0.8 percent is about 4.96 short tons.

It is short compared with the 2,240 lb long ton. The US kept the 2,000 lb ton, while Britain used 20 hundredweights of 112 lb.

One kilogram is 0.00110231131 short ton. You get it by dividing 1 by 907.18474, and the digits repeat without end.

A US ton of sand is 907.18474 kg, the same as a ton of anything. The volume changes with density, but the mass does not.

The tn symbol stands for the US short ton of 2,000 lb. It is the abbreviation Handbook 44 requires on newer US scales.

No. The math happens in your browser, so your tonnages never leave the page. The Save button only stores a copy in this browser.

• Short ton of 2,000 lb, the tn abbreviation and the exact 907.184 74 kg value (NIST Handbook 44, 2026, Appendix C).
• Conversion factors for ton, short (2000 lb) to kilograms (NIST SP 811, Appendix B.8).
• Approximate conversions, including short ton x 0.91 = metric ton (NIST Office of Weights and Measures).
• SI units of mass: the kilogram and 1,000 kg = 1 metric ton (NIST Office of Weights and Measures).