Convert Pounds to Short Tons
1 pound (lb) equals 0.0005 short tons (ton (US)).
1 lb = 0.0005 ton (US)
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk pound to short ton converter to paste a column from Excel.
How to Convert Pound to Short Ton
- 1 lb = 0.0005 ton (US)
- 1 ton (US) = 2000 lb
- Example: convert 15 lb to ton (US): 15 lb = 15 × 0.0005 ton (US) = 0.0075 ton (US)
Reference conditions. lb: 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) = lb ÷ 2000
Derivation from SI units:
- 1 lb = 0.45359237 kg (exact, 1959 international agreement)
- 1 short ton = 2000 lb = 907.18474 kg (exact)
- 1 lb = 0.45359237 kg ÷ 907.18474 kg per ton (US) = 0.0005 ton (US)
Both units are defined exactly, so the factor is exact. Pound definition: pound; Short Ton definition: short ton.
Worked examples
- A reading of 20 lb converts to 0.01 ton (US).
20 lb × 0.0005 = 0.01 ton (US) - A value of 140 lb is 0.07 ton (US).
140 lb × 0.0005 = 0.07 ton (US)
Pound to Short Ton conversion table
| Pounds (lb) | Short Tons (ton (US)) |
|---|---|
| 0.25 lb | 0.000125 ton (US) |
| 0.5 lb | 0.00025 ton (US) |
| 1 lb | 0.0005 ton (US) |
| 2 lb | 0.001 ton (US) |
| 3 lb | 0.0015 ton (US) |
| 5 lb | 0.0025 ton (US) |
| 10 lb | 0.005 ton (US) |
| 15 lb | 0.0075 ton (US) |
| 20 lb | 0.01 ton (US) |
| 25 lb | 0.0125 ton (US) |
| 30 lb | 0.015 ton (US) |
| 40 lb | 0.02 ton (US) |
| 50 lb | 0.025 ton (US) |
| 100 lb | 0.05 ton (US) |
| 120 lb | 0.06 ton (US) |
| 130 lb | 0.065 ton (US) |
| 140 lb | 0.07 ton (US) |
| 150 lb | 0.075 ton (US) |
| 160 lb | 0.08 ton (US) |
| 170 lb | 0.085 ton (US) |
| 180 lb | 0.09 ton (US) |
| 200 lb | 0.1 ton (US) |
| 220 lb | 0.11 ton (US) |
| 250 lb | 0.125 ton (US) |
| 300 lb | 0.15 ton (US) |
Where it's used
Pounds are used for body weight and food in the US, while short tons appear in US truck, trailer and vehicle ratings. Both measure mass (commonly called weight), so the conversion is a fixed factor.
Pound to other weight and mass units
| Conversion | 1 lb equals |
|---|---|
| pound to kilogram | 0.45359237 kg |
| pound to gram | 453.59237 g |
| pound to milligram | 453592.37 mg |
| pound to microgram | 453592370 µg |
| pound to metric ton | 0.00045359237 t |
| pound to ounce | 16 oz |
| pound to stone | 0.07142857143 st |
| pound to short ton | 0.0005 ton (US) |
| pound to long ton | 0.0004464285714 ton (UK) |
| pound to grain | 7000 gr |
| pound to troy ounce | 14.58333333 oz t |
| pound to carat | 2267.96185 ct |
Frequently asked questions
How many short tons are in 1 pound?
1 lb = 0.0005 ton (US).
How do I convert pounds to short tons?
Multiply the value in lb by 0.0005, or divide it by 2000. For example, 15 lb × 0.0005 = 0.0075 ton (US).
Is the lb to ton (US) conversion exact?
Yes. Both units are defined exactly, and 1 lb is exactly 0.0005 ton (US).
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, "pound (avoirdupois) (lb)".
- 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 Pounds to Short Tons. Retrieved October 17, 2026, from https://scientificconverters.com/mass/pounds-to-short-tons/
IEEE
Scientific Converters, "Convert Pounds to Short Tons," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/mass/pounds-to-short-tons/