Convert Long ton to Tonne
1 long ton = 1.016047 tonne (t). For example, 10 long ton = 10.16047 tonne and 100 long ton = 101.6047 tonne. Type any value below to convert long ton to tonne both ways — it runs entirely in your browser.
Quick answer: Long ton to Tonne
1 Long ton = 1.016047 Tonne (ton (UK) → t). To convert long ton to tonne, multiply by 1.016047. To convert tonne to long ton, multiply by 0.9842065. The converter at the top does this instantly and both ways; the sections below give the formula, worked examples, a full conversion chart and answers to the most common long ton-to-tonne questions.
How to convert Long ton to Tonne
To convert long ton to tonne, multiply the number of long ton by the conversion factor 1.016047, because 1 ton (UK) = 1.016047 t. The conversion is linear, so the same factor works for any value — whole numbers, decimals or fractions. For the reverse direction, 1 t = 0.9842065 ton (UK), so you divide by 1.016047 (or multiply by 0.9842065) to turn tonne back into long ton.
t = ton (UK) × 1.016047 ·
ton (UK) = t × 0.9842065
- Write down the value you want to convert, in long ton.
- Multiply it by 1.016047.
- The result is the same area/length/quantity expressed in tonne.
Long ton to Tonne — worked examples
Each row shows the exact arithmetic so you can follow the conversion step by step. For example, 5 long ton is 5.080235 tonne because 5 ton (UK) × 1.016047 = 5.080235 t.
| Long ton | Calculation | Tonne |
|---|---|---|
| 1 ton (UK) | 1 ton (UK) × 1.016047 = 1.016047 t | 1.016047 t |
| 2 ton (UK) | 2 ton (UK) × 1.016047 = 2.032094 t | 2.032094 t |
| 3 ton (UK) | 3 ton (UK) × 1.016047 = 3.048141 t | 3.048141 t |
| 5 ton (UK) | 5 ton (UK) × 1.016047 = 5.080235 t | 5.080235 t |
| 7 ton (UK) | 7 ton (UK) × 1.016047 = 7.112328 t | 7.112328 t |
| 10 ton (UK) | 10 ton (UK) × 1.016047 = 10.16047 t | 10.16047 t |
| 12 ton (UK) | 12 ton (UK) × 1.016047 = 12.19256 t | 12.19256 t |
| 15 ton (UK) | 15 ton (UK) × 1.016047 = 15.2407 t | 15.2407 t |
| 20 ton (UK) | 20 ton (UK) × 1.016047 = 20.32094 t | 20.32094 t |
| 25 ton (UK) | 25 ton (UK) × 1.016047 = 25.40117 t | 25.40117 t |
| 50 ton (UK) | 50 ton (UK) × 1.016047 = 50.80235 t | 50.80235 t |
| 100 ton (UK) | 100 ton (UK) × 1.016047 = 101.6047 t | 101.6047 t |
Common Long ton to Tonne conversions
These are the long ton-to-tonne values people look up most often. Every figure is computed from the exact factor, so you can rely on them for quick reference:
- 1 long ton = 1.016047 tonne
- 2 long ton = 2.032094 tonne
- 2.5 long ton = 2.540117 tonne
- 3 long ton = 3.048141 tonne
- 4 long ton = 4.064188 tonne
- 5 long ton = 5.080235 tonne
- 6 long ton = 6.096281 tonne
- 7 long ton = 7.112328 tonne
- 8 long ton = 8.128375 tonne
- 9 long ton = 9.144422 tonne
- 10 long ton = 10.16047 tonne
- 12 long ton = 12.19256 tonne
- 15 long ton = 15.2407 tonne
- 20 long ton = 20.32094 tonne
- 25 long ton = 25.40117 tonne
- 30 long ton = 30.48141 tonne
- 50 long ton = 50.80235 tonne
- 75 long ton = 76.20352 tonne
- 100 long ton = 101.6047 tonne
- 200 long ton = 203.2094 tonne
- 500 long ton = 508.0235 tonne
- 1000 long ton = 1,016.047 tonne
Long ton to Tonne conversion chart (both directions)
The chart below converts long ton to tonne and tonne to long ton side by side, so it works whichever way you need. 1 long ton = 1.016047 tonne, and 1 tonne = 0.9842065 long ton.
| Long ton → Tonne | Tonne → Long ton |
|---|---|
| 0.25 ton (UK) = 0.2540117 t | 0.25 t = 0.2460516 ton (UK) |
| 0.5 ton (UK) = 0.5080235 t | 0.5 t = 0.4921033 ton (UK) |
| 1 ton (UK) = 1.016047 t | 1 t = 0.9842065 ton (UK) |
| 2 ton (UK) = 2.032094 t | 2 t = 1.968413 ton (UK) |
| 3 ton (UK) = 3.048141 t | 3 t = 2.95262 ton (UK) |
| 4 ton (UK) = 4.064188 t | 4 t = 3.936826 ton (UK) |
| 5 ton (UK) = 5.080235 t | 5 t = 4.921033 ton (UK) |
| 6 ton (UK) = 6.096281 t | 6 t = 5.905239 ton (UK) |
| 7 ton (UK) = 7.112328 t | 7 t = 6.889446 ton (UK) |
| 8 ton (UK) = 8.128375 t | 8 t = 7.873652 ton (UK) |
| 9 ton (UK) = 9.144422 t | 9 t = 8.857859 ton (UK) |
| 10 ton (UK) = 10.16047 t | 10 t = 9.842065 ton (UK) |
| 12 ton (UK) = 12.19256 t | 12 t = 11.81048 ton (UK) |
| 15 ton (UK) = 15.2407 t | 15 t = 14.7631 ton (UK) |
| 20 ton (UK) = 20.32094 t | 20 t = 19.68413 ton (UK) |
| 25 ton (UK) = 25.40117 t | 25 t = 24.60516 ton (UK) |
| 30 ton (UK) = 30.48141 t | 30 t = 29.5262 ton (UK) |
| 40 ton (UK) = 40.64188 t | 40 t = 39.36826 ton (UK) |
| 50 ton (UK) = 50.80235 t | 50 t = 49.21033 ton (UK) |
| 75 ton (UK) = 76.20352 t | 75 t = 73.81549 ton (UK) |
| 100 ton (UK) = 101.6047 t | 100 t = 98.42065 ton (UK) |
| 150 ton (UK) = 152.407 t | 150 t = 147.631 ton (UK) |
| 200 ton (UK) = 203.2094 t | 200 t = 196.8413 ton (UK) |
| 250 ton (UK) = 254.0117 t | 250 t = 246.0516 ton (UK) |
| 500 ton (UK) = 508.0235 t | 500 t = 492.1033 ton (UK) |
| 1000 ton (UK) = 1,016.047 t | 1000 t = 984.2065 ton (UK) |
Long ton vs Tonne: which is bigger?
A long ton is the larger unit: one long ton equals 1.016047 tonnes. Put another way, you need 1.016047 tonnes to make a single long ton.
What is a Long ton? History, origin and usage
The long ton is the original English ton, and it traces back to the tun — a wine cask big enough to hold roughly 252 gallons. A full tun weighed in the region of 2,240 pounds, and that number stuck as the ton of British trade. It is built from twenty hundredweight of 112 pounds, which in turn is eight stone.
The long ton is the traditional unit of British shipping, mining and heavy industry, and it is still used for ship displacement and some bulk commodity contracts. In everyday British life it has largely given way to the metric tonne, which happens to be a very close match in size.
A long ton is exactly 1.12 short tons, and it sits only slightly above the metric tonne — close enough that the two are often confused, and far enough apart to matter on a shipload. British sources sometimes call it the imperial or gross ton.
What is a Tonne? History, origin and usage
The word "tonne" comes from the tun, a large medieval wine cask. When the metric system needed a bulk unit, the name was borrowed and the value made round: exactly one thousand kilograms. It was formally recognised as a unit for use with SI in 1879 and remains accepted today, even though its strictly SI name would be the megagram.
Tonnes measure freight, shipping containers, harvests, vehicle weight limits, industrial output and carbon emissions. Almost every country outside the United States means the metric tonne when it says "ton".
Nobody says "megagram", even though that is the coherent SI name for the same mass. In writing, "tonne" or "metric ton" is used to distinguish it from the American short ton and the British long ton, which are both different — and different from each other.
Convert 1 Long ton to other units
It can help to see a long ton next to the other units it is commonly compared with. One long ton (ton (UK)) is equal to:
| 1 Long ton equals | Unit |
|---|---|
| 1,016.047 kg | Kilogram |
| 1,016,047 g | Gram |
| 1,016,047,000 mg | Milligram |
| 1,016,047,000,000 µg | Microgram |
| 1.016047 t | Tonne |
| 10.16047 q | Quintal |
| 2,240 lb | Pound |
| 35,840 oz | Ounce |
| 160 st | Stone |
| 1.12 ton (US) | Short ton |
| 32,666.67 oz t | Troy ounce |
| 15,680,000 gr | Grain |
| 5,080,235 ct | Carat |
Convert 1 Tonne to other units
One tonne (t) is equal to:
| 1 Tonne equals | Unit |
|---|---|
| 1,000 kg | Kilogram |
| 1,000,000 g | Gram |
| 1,000,000,000 mg | Milligram |
| 1,000,000,000,000 µg | Microgram |
| 10 q | Quintal |
| 2,204.623 lb | Pound |
| 35,273.96 oz | Ounce |
| 157.473 st | Stone |
| 1.102311 ton (US) | Short ton |
| 0.9842065 ton (UK) | Long ton |
| 32,150.75 oz t | Troy ounce |
| 15,432,360 gr | Grain |
| 5,000,000 ct | Carat |
Tips for converting Long ton to Tonne
- To go from long ton to tonne, multiply by 1.016047; to go back, divide by 1.016047 (or multiply by 0.9842065).
- For a quick mental estimate, remember that 1 long ton ≈ 1.016047 tonne, so 10 long ton ≈ 10.16047 tonne.
- The converter above keeps full precision; the tables round for readability, so use the tool for exact figures.
- Both fields update live as you type — change either side to convert in that direction.
How to use this Long ton to Tonne converter
Type a number into the Long ton field and the equivalent in Tonne appears instantly — there is no “convert” button to press and nothing is sent to a server, so it works offline once the page has loaded and is safe for any data. You can also type into the Tonne field to convert the other way (tonne to long ton). Use the swap control to flip the two units, and copy the result with a single click. Because the calculation runs in your browser with full floating-point precision, the converter is more exact than the rounded figures shown in the reference chart above — use the chart for quick look-ups and the tool for precise work.
Accuracy and method
Every figure on this page — the formula, the worked examples, the conversion chart and the “convert to other units” tables — is computed from a single verified conversion factor (1 ton (UK) = 1.016047 t), never copied from a hand-typed lookup table that could drift. That factor is derived from each unit’s definition in terms of a common base unit, and an automated check re-verifies all of the site’s factors on every update, so the numbers here stay correct over time. This matters for long ton-to-tonne conversions because a small rounding error in a published table compounds quickly at larger quantities; computing from the exact factor avoids that.
Sources
- NIST Special Publication 811 — Guide for the Use of the SI — publishes the exact metric equivalents of the customary weight units. The 1959 international yard-and-pound agreement fixes the international avoirdupois pound at exactly 0.453 592 37 kilogram, and the ounce, stone, grain and both tons are defined as exact fractions or multiples of that pound — so every imperial weight on this page is exact, not rounded.
- BIPM — The International System of Units (SI Brochure) — the defining document for the SI, published by the International Bureau of Weights and Measures. It fixes the base unit that this conversion resolves to, which is why the factor here can be exact rather than approximate.
Weight factors here are exact, anchored to the kilogram: the international pound is exactly 0.45359237 kg, a stone is 14 pounds, a short ton is 2,000 pounds and a long ton is 2,240, a grain is 1/7000 of a pound and a metric carat is exactly 200 mg. So the live tool and every number on this page always agree.
Frequently asked questions
- How many tonne are in 1 long ton?
- 1 long ton = 1.016047 tonne (t). To convert any number of long ton to tonne, multiply by 1.016047.
- How do I convert long ton to tonne?
- Multiply the number of long ton by 1.016047. For example, 10 long ton = 10 × 1.016047 = 10.16047 tonne, and 25 long ton = 25.40117 tonne.
- How many long ton are in 1 tonne?
- 1 tonne = 0.9842065 long ton. So to convert tonne back to long ton, multiply by 0.9842065.
- What is the formula to convert long ton to tonne?
- tonne = long ton × 1.016047. The reverse formula is long ton = tonne × 0.9842065.
- How much is 100 long ton in tonne?
- 100 long ton = 101.6047 tonne. (And 1000 long ton = 1,016.047 tonne.)
- Which is bigger, a long ton or a tonne?
- A long ton is larger: 1 long ton = 1.016047 tonne.
- Is this long ton to tonne converter accurate?
- Yes — every value is computed from the exact 1.016047 t per ton (UK) factor (not rounded look-up tables), and the factors are re-verified automatically on every update.
- Can I convert tonne to long ton too?
- Yes. The converter works both ways — enter a value in either field. 1 tonne = 0.9842065 long ton.