Grain to US Ton (Short) Converter
Weight · unit-converter
Convert Grain to US Ton (Short) 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: US Ton (Short) (ust)
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 US Ton (Short)
The US short ton is 2,000 pounds avoirdupois (exactly 907.18474 kg in the international avoirdupois pound definition). Common in US freight and industry.
How to convert grains to us tons (short)
1 grain is equal to 7.14285714e-8 us ton (short):
1 gr = (0.06479891 g ÷ 907184.74 g) ust = 7.14285714e-8 ust
Each grain is defined as 0.06479891 g and each us ton (short) as 907184.74 g, so one gr equals 0.06479891 ÷ 907184.74 ust = 7.14285714e-8 ust.
Let w(gr) be the numeric value of the same mass measured in Grain (gr), and w(ust) the value in US Ton (Short) (ust). Then:
w(ust) = w(gr) × (0.06479891 / 907184.74)
Equivalently, divide by how many gr fit into one ust (grams per ust divided by grams per gr):
w(ust) = w(gr) ÷ 1.40000000e+7
Or: us ton (short) = grain ÷ 1.40000000e+7
Examples
Example #1: Convert 20 gr to us ton (short)
20 gr = 20 gr × (0.06479891/907184.74) ust = 0.0000014286 ust
20 gr = 20 gr ÷ 1.40000000e+7 = 0.0000014286 ust
Example #2: Convert 50 gr to us ton (short)
50 gr = 50 gr × (0.06479891/907184.74) ust = 0.0000035714 ust
50 gr = 50 gr ÷ 1.40000000e+7 = 0.0000035714 ust
Summary
To convert Grain to US Ton (Short), multiply the value in gr by the ratio of grams per gr divided by grams per ust. Equivalently: value_ust = value_gr × (0.06479891 / 907184.74). Numerically, 1 gr equals 7.142857142857144e-8 ust.
Relationship context
You are converting between imperial / UK (stone, long ton, pound, ounce) (Grains) and US customary (short ton) (US Tons (Short)). Metric mass is decimal from the gram; US and imperial masses use pounds and ounces with fixed definitions relative to the kilogram. The numeric factor used here is 7.142857e-8.
Conversion tables
| Grain (gr) | US Ton (Short) (ust) |
|---|---|
| 0.1 | 0.0000000071 |
| 1 | 0.0000000714 |
| 2 | 0.0000001429 |
| 3 | 0.0000002143 |
| 4 | 0.0000002857 |
| 5 | 0.0000003571 |
| 6 | 0.0000004286 |
| 7 | 0.0000005 |
| 8 | 0.0000005714 |
| 9 | 0.0000006429 |
| Grain (gr) | US Ton (Short) (ust) |
|---|---|
| 10 | 0.0000007143 |
| 20 | 0.0000014286 |
| 30 | 0.0000021429 |
| 40 | 0.0000028571 |
| 50 | 0.0000035714 |
| 60 | 0.0000042857 |
| 70 | 0.000005 |
| 80 | 0.0000057143 |
| 90 | 0.0000064286 |
| 100 | 0.0000071429 |