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Convert Stone to Long tons

1 stone is 0.01 LT. One stone is exactly 0.00625 long tons.

One stone is 0.00625 long tons. To convert stone to long tons, multiply by 0.00625; to go the other way, divide by 0.00625 or multiply by 160. The factor is exact rather than rounded: it follows from NIST Handbook 44. Fourteen pounds.

Factor checked against the defining standard · How we check

Long tons
0.01 LT
Stone × 0.00625
1 * 0.006250.006 LT

1 stone in every weight unit

1 stone expressed in every weight unit
UnitValueExact factor
ounces224 oz× 224
pounds14 lb× 14
stone (as entered)1 st—
US tons0.007 ton× 0.007
micrograms6,350,293,180 mcg× 6,350,293,180
milligrams6,350,293.18 mg× 6,350,293.18
centigrams635,029.318 cg× 635,029.318
grams6,350.29318 g× 6,350.29318
kilograms6.35029318 kg× 6.35029318
slugs0.4351333024 slug× 0.435133302402
tonnes0.00635029318 t× 0.00635029318
carats31,751.4659 ct× 31,751.4659
troy ounces204.1666667 ozt× 204.166666667
grains98,000 gr× 98,000
long tons0.00625 LT× 0.00625

Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert stone to long tons? The converter and the working

  1. 1.Take the measurement in stone.
  2. 2.Multiply by 0.00625 — that is how many long tons fit in one stone.
  3. 3.To go back the other way, divide by 0.00625, or multiply by 160.

Worked example: 25 stone to long tons

Formula
st × 0.00625 = LT
Arithmetic
25 × 0.00625 = 0.16 LT
Answer
25 st = 0.16 LT

The factor is exact, so this figure is exact too — only the display is rounded.

Stone to long tons conversion table

Stone to long tons conversion table
StoneLong tons
1 st0.01 LT
2 st0.01 LT
3 st0.02 LT
4 st0.03 LT
5 st0.03 LT
6 st0.04 LT
7 st0.04 LT
8 st0.05 LT
9 st0.06 LT
10 st0.06 LT
12 st0.08 LT
15 st0.09 LT
20 st0.13 LT
25 st0.16 LT
50 st0.31 LT
100 st0.63 LT
200 st1.25 LT
300 st1.88 LT
500 st3.13 LT
1000 st6.25 LT
2000 st12.5 LT
5000 st31.25 LT
10000 st62.5 LT

What is a stone?

Fourteen pounds. Still the everyday unit of body weight in Britain and Ireland, and nowhere else.

What is a long ton?

The British ton: 2,240 lb, against the US short ton’s 2,000 and the tonne’s 2,204.62. Three units, one word, and shipping documents use all three.

How many long tons are in a stone?

One stone is 0.00625 long tons, exactly. Going the other way, one long ton is 160 stone. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.

Every weight unit here

The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a stone.

Source: NIST Handbook 44 — mass and weight

Cite this page

APA
Rule Calculator. (2026). Convert Stone to long tons. Rule Calculator. https://rulecalculators.com/convert/stone-to-long-ton
MLA
"Convert Stone to long tons." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/stone-to-long-ton.
Chicago
Rule Calculator. "Convert Stone to long tons." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/stone-to-long-ton.

The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.

Questions people actually ask

How many long tons are in a stone?
0.00625. The British ton: 2,240 lb, against the US short ton’s 2,000 and the tonne’s 2,204.62. Three units, one word, and shipping documents use all three.
How do I convert long tons back to stone?
Divide by 0.00625, or multiply by 160 — they are the same operation.

Other weight conversions

Long tons to stone — the same conversion the other way.

Calculators that work in weight