Grain to Long Ton (UK) Converter
Weight · unit-converter
Convert Grain 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: Grain (gr)
To: Long Ton (UK) (lton)
About Grain
The grain is 1/7000 of a pound (exactly 64.79891 mg). It is used in ballistics, pharmacy, and precious-metal contexts.
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 grains to long tons (uk)
1 grain is equal to 6.37755102e-8 long ton (uk):
1 gr = (0.06479891 g ÷ 1016046.9088 g) lton = 6.37755102e-8 lton
Each grain is defined as 0.06479891 g and each long ton (uk) as 1016046.9088 g, so one gr equals 0.06479891 ÷ 1016046.9088 lton = 6.37755102e-8 lton.
Let w(gr) be the numeric value of the same mass measured in Grain (gr), and w(lton) the value in Long Ton (UK) (lton). Then:
w(lton) = w(gr) × (0.06479891 / 1016046.9088)
Equivalently, divide by how many gr fit into one lton (grams per lton divided by grams per gr):
w(lton) = w(gr) ÷ 1.56800000e+7
Or: long ton (uk) = grain ÷ 1.56800000e+7
Examples
Example #1: Convert 20 gr to long ton (uk)
20 gr = 20 gr × (0.06479891/1016046.9088) lton = 0.0000012755 lton
20 gr = 20 gr ÷ 1.56800000e+7 = 0.0000012755 lton
Example #2: Convert 50 gr to long ton (uk)
50 gr = 50 gr × (0.06479891/1016046.9088) lton = 0.0000031888 lton
50 gr = 50 gr ÷ 1.56800000e+7 = 0.0000031888 lton
Summary
To convert Grain to Long Ton (UK), multiply the value in gr by the ratio of grams per gr divided by grams per lton. Equivalently: value_lton = value_gr × (0.06479891 / 1016046.9088). Numerically, 1 gr equals 6.377551020408164e-8 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
| Grain (gr) | Long Ton (UK) (lton) |
|---|---|
| 0.1 | 0.0000000064 |
| 1 | 0.0000000638 |
| 2 | 0.0000001276 |
| 3 | 0.0000001913 |
| 4 | 0.0000002551 |
| 5 | 0.0000003189 |
| 6 | 0.0000003827 |
| 7 | 0.0000004464 |
| 8 | 0.0000005102 |
| 9 | 0.000000574 |
| Grain (gr) | Long Ton (UK) (lton) |
|---|---|
| 10 | 0.0000006378 |
| 20 | 0.0000012755 |
| 30 | 0.0000019133 |
| 40 | 0.000002551 |
| 50 | 0.0000031888 |
| 60 | 0.0000038265 |
| 70 | 0.0000044643 |
| 80 | 0.000005102 |
| 90 | 0.0000057398 |
| 100 | 0.0000063776 |