Pennyweight to Long Ton (UK) Converter
Convert Pennyweight (dwt) to Long Ton (UK) (long ton) instantly. 1 dwt = 1.530612e-6 long ton.
Mass Converter
26 units available
1 dwt = 1.530612e-6 long ton
Formula:
long ton = dwt × 0.0000015306With your value: 1 dwt = 1.530612e-6 long ton
How big is that?
Everyday references on a logarithmic scale, all expressed in pennyweight so you can sanity-check the result.
Other Pennyweight to Long Ton (UK) conversions
Pennyweight to Long Ton (UK) Conversion Table
| Pennyweight (dwt) | Long Ton (UK) (long ton) |
|---|---|
| 0.5 | 7.653061e-7 |
| 1 | 1.530612e-6 |
| 2 | 3.061224e-6 |
| 5 | 7.653061e-6 |
| 10 | 1.530612e-5 |
| 15 | 2.295918e-5 |
| 20 | 3.061224e-5 |
| 25 | 3.826531e-5 |
| 50 | 7.653061e-5 |
| 100 | 0.000153 |
| 250 | 0.000383 |
| 500 | 0.000765 |
| 1000 | 0.001531 |
Long Ton (UK) to Pennyweight Conversion Table
| Long Ton (UK) (long ton) | Pennyweight (dwt) |
|---|---|
| 0.5 | 326,666.666667 |
| 1 | 653,333.333333 |
| 2 | 1,306,666.666667 |
| 5 | 3,266,666.666667 |
| 10 | 6,533,333.333333 |
| 15 | 9,800,000 |
| 20 | 13,066,666.666667 |
| 25 | 16,333,333.333333 |
| 50 | 32,666,666.666667 |
| 100 | 65,333,333.333333 |
| 250 | 163,333,333.333333 |
| 500 | 326,666,666.666667 |
| 1000 | 653,333,333.333333 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Pennyweight (dwt)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Long Ton (UK) (long ton)
Mass
Traceable to the kilogram, defined by fixing the Planck constant at 6.626 070 15 × 10⁻³⁴ J·s. Avoirdupois masses derive from the 1959 international pound (0.453 592 37 kg exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Pennyweight to Long Ton (UK)
To convert from Pennyweight (dwt) to Long Ton (UK) (long ton), multiply the value by 1.530612e-6.
Formula: long ton = dwt × 0.0000015306
Reverse: dwt = long ton × 653,333.3333333333
Step-by-Step Example
- Start with your value in Pennyweight. For example: 5 dwt
- Multiply by the conversion factor: 5 x 1.530612e-6
- The result is: 7.653061e-6 long ton
About Pennyweight
The pennyweight (dwt) equals 1/20 of a troy ounce, about 1.555 grams. Jewellers still price scrap gold by the pennyweight.
Common uses: jewellery trade, gold scrap, assaying.
About Long Ton (UK)
The long ton (imperial ton) equals 2,240 pounds or 1,016.0469088 kg, and remains in use for shipping displacement.
Common uses: shipping, UK industry (historic).
Frequently Asked Questions
How many Long Ton (UK) are in 1 Pennyweight?
There are exactly 1.530612e-6 Long Ton (UK) in 1 Pennyweight. This means the conversion factor from Pennyweight to Long Ton (UK) is 1.530612e-6.
What is the formula to convert Pennyweight to Long Ton (UK)?
The formula to convert Pennyweight to Long Ton (UK) is: long ton = dwt × 0.0000015306. For example, to convert 10 Pennyweight to Long Ton (UK), you would multiply 10 by 1.530612e-6.
What is a Pennyweight?
The pennyweight (dwt) equals 1/20 of a troy ounce, about 1.555 grams. Jewellers still price scrap gold by the pennyweight.
What is a Long Ton (UK)?
The long ton (imperial ton) equals 2,240 pounds or 1,016.0469088 kg, and remains in use for shipping displacement.
What are the common uses of Pennyweight?
The Pennyweight is commonly used in jewellery trade, gold scrap, assaying.
Related Mass Conversions
Cite this page
UnitConvertLab. (2026). Pennyweight to Long Ton (UK) converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/pennyweight-to-long_ton