Stone to Long Ton (UK) Converter
Weight · unit-converter
Convert Stone to Long Ton (UK) with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use gram-based factors (international avoirdupois pound and metric definitions). The full Weight Converter also includes carat, grain, and US/UK hundredweight.
Calculator
From: Stone (st)
To: Long Ton (UK) (lton)
About Stone
The stone is 14 pounds (UK and Ireland). It is often used for human body weight in those regions.
About Long Ton (UK)
The long ton (UK ton) is 2,240 pounds avoirdupois (about 1.016 metric tons). It appears in UK shipping and some historical contexts.
How to convert stone to long tons (uk)
1 stone is equal to 0.00625 long ton (uk):
1 st = (6350.29318 g ÷ 1016046.9088 g) lton = 0.00625 lton
Each stone is defined as 6350.29318 g and each long ton (uk) as 1016046.9088 g, so one st equals 6350.29318 ÷ 1016046.9088 lton = 0.00625 lton.
Let w(st) be the numeric value of the same mass measured in Stone (st), and w(lton) the value in Long Ton (UK) (lton). Then:
w(lton) = w(st) × (6350.29318 / 1016046.9088)
Equivalently, divide by how many st fit into one lton (grams per lton divided by grams per st):
w(lton) = w(st) ÷ 160
Or: long ton (uk) = stone ÷ 160
Examples
Example #1: Convert 20 st to long ton (uk)
20 st = 20 st × (6350.29318/1016046.9088) lton = 0.125 lton
20 st = 20 st ÷ 160 = 0.125 lton
Example #2: Convert 50 st to long ton (uk)
50 st = 50 st × (6350.29318/1016046.9088) lton = 0.3125 lton
50 st = 50 st ÷ 160 = 0.3125 lton
Summary
To convert Stone to Long Ton (UK), multiply the value in st by the ratio of grams per st divided by grams per lton. Equivalently: value_lton = value_st × (6350.29318 / 1016046.9088). Numerically, 1 st equals 0.0062499999999999995 lton.
Relationship context
Both units belong to imperial / UK (stone, long ton, pound, ounce). Relationships such as 16 oz per lb and 14 lb per stone are exact in the avoirdupois system; tons use fixed pound counts. This tool uses international definitions tied to the kilogram.
Conversion tables
| Stone (st) | Long Ton (UK) (lton) |
|---|---|
| 0.1 | 0.000625 |
| 1 | 0.00625 |
| 2 | 0.0125 |
| 3 | 0.01875 |
| 4 | 0.025 |
| 5 | 0.03125 |
| 6 | 0.0375 |
| 7 | 0.04375 |
| 8 | 0.05 |
| 9 | 0.05625 |
| Stone (st) | Long Ton (UK) (lton) |
|---|---|
| 10 | 0.0625 |
| 20 | 0.125 |
| 30 | 0.1875 |
| 40 | 0.25 |
| 50 | 0.3125 |
| 60 | 0.375 |
| 70 | 0.4375 |
| 80 | 0.5 |
| 90 | 0.5625 |
| 100 | 0.625 |