Convert Grains to Short Tons
1 grain (gr) equals 7.142857143 × 10⁻⁸ short tons (ton (US)).
1 gr = 7.142857143e-8 ton (US)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk grain to short ton converter to paste a column from Excel.
How to Convert Grain to Short Ton
- 1 gr = 7.142857143 × 10⁻⁸ ton (US)
- 1 ton (US) = 14000000 gr
- Example: convert 15 gr to ton (US): 15 gr = 15 × 7.142857143 × 10⁻⁸ ton (US) = 0.000001071428571 ton (US)
Reference conditions. gr: Avoirdupois system: 1 lb = 16 oz = 7000 grains = 0.45359237 kg exactly (1959 agreement). ton (US): Avoirdupois system: 1 lb = 16 oz = 7000 grains = 0.45359237 kg exactly (1959 agreement).
Formula
ton (US) = gr ÷ 14000000
Derivation from SI units:
- 1 gr = 1/7000 lb = 64.79891 mg (exact)
- 1 short ton = 2000 lb = 907.18474 kg (exact)
- 1 gr = 0.00006479891 kg ÷ 907.18474 kg per ton (US) = 7.142857142857 × 10⁻⁸ ton (US)
Both units are defined exactly, so the factor is exact. Grain definition: grain; Short Ton definition: short ton.
Worked examples
- A reading of 40 gr converts to 0.000002857142857 ton (US).
40 gr × 7.142857143 × 10⁻⁸ = 0.000002857142857 ton (US) - A value of 150 gr is 0.00001071428571 ton (US).
150 gr × 7.142857143 × 10⁻⁸ = 0.00001071428571 ton (US)
Grain to Short Ton conversion table
| Grains (gr) | Short Tons (ton (US)) |
|---|---|
| 1 gr | 7.142857143 × 10⁻⁸ ton (US) |
| 5 gr | 3.571428571 × 10⁻⁷ ton (US) |
| 10 gr | 7.142857143 × 10⁻⁷ ton (US) |
| 15 gr | 0.000001071428571 ton (US) |
| 20 gr | 0.000001428571429 ton (US) |
| 40 gr | 0.000002857142857 ton (US) |
| 55 gr | 0.000003928571429 ton (US) |
| 100 gr | 0.000007142857143 ton (US) |
| 115 gr | 0.000008214285714 ton (US) |
| 124 gr | 0.000008857142857 ton (US) |
| 150 gr | 0.00001071428571 ton (US) |
| 180 gr | 0.00001285714286 ton (US) |
| 300 gr | 0.00002142857143 ton (US) |
| 1000 gr | 0.00007142857143 ton (US) |
| 7000 gr | 0.0005 ton (US) |
Where it's used
Grains are used for bullet and powder weights, while short tons appear in US truck, trailer and vehicle ratings. Both measure mass (commonly called weight), so the conversion is a fixed factor.
Grain to other weight and mass units
| Conversion | 1 gr equals |
|---|---|
| grain to kilogram | 0.00006479891 kg |
| grain to gram | 0.06479891 g |
| grain to milligram | 64.79891 mg |
| grain to microgram | 64798.91 µg |
| grain to metric ton | 6.479891 × 10⁻⁸ t |
| grain to pound | 0.0001428571429 lb |
| grain to ounce | 0.002285714286 oz |
| grain to stone | 0.00001020408163 st |
| grain to short ton | 7.142857143 × 10⁻⁸ ton (US) |
| grain to long ton | 6.37755102 × 10⁻⁸ ton (UK) |
| grain to troy ounce | 0.002083333333 oz t |
| grain to carat | 0.32399455 ct |
Frequently asked questions
How many short tons are in 1 grain?
1 gr = 7.142857143 × 10⁻⁸ ton (US).
How do I convert grains to short tons?
Multiply the value in gr by 7.142857143 × 10⁻⁸, or divide it by 14000000. For example, 15 gr × 7.142857143 × 10⁻⁸ = 0.000001071428571 ton (US).
Is the gr to ton (US) conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "grain (gr)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "ton, short (2000 lb)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Grains to Short Tons. Retrieved October 17, 2026, from https://scientificconverters.com/mass/grains-to-short-tons/
IEEE
Scientific Converters, "Convert Grains to Short Tons," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/mass/grains-to-short-tons/