Convert Pound (troy/apothecary) to Ton (long, UK)
Convert pounds (troy/apothecary) to tons (long, uk) instantly. 1 pound (troy/apothecary) = 0.0003673469 ton (long, uk) — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ton (long, UK) to Pound (troy/apothecary) converter for the reverse conversion.
Units explained
Pound (troy/apothecary)
The troy (apothecary) pound equals 12 troy ounces, about 373.24 grams.
Named for Troyes, France, a major medieval trade-fair town.
Historical pricing of precious metals; now largely superseded by the troy ounce.
Adopted as the English coinage standard under Henry VIII in 1528.
Ton (long, UK)
The long (UK) ton equals 2,240 pounds, about 1,016 kilograms.
The British imperial ton, equal to 20 long hundredweight.
UK shipping and historical heavy industry.
Standardized within the British imperial system.
Pound (troy/apothecary) to Ton (long, UK) conversion formula
The relationship between pounds (troy/apothecary) and tons (long, uk):
To convert pounds (troy/apothecary) to tons (long, uk), multiply the value in pounds (troy/apothecary) by 0.0003673469. To reverse, multiply tons (long, uk) by 2722.2222222222.
How to use this converter
Type a value into the calculator. The result in tons (long, uk) updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Ton (long, UK) to Pound (troy/apothecary) converter for the reverse direction.
Step-by-step: convert pounds (troy/apothecary) to tons (long, uk)
- Write down the value in pounds (troy/apothecary) (lb t).
- Multiply that value by the factor 0.0003673469.
- The product is the equivalent value in tons (long, uk) (long tn).
- To reverse, multiply the ton (long, uk) value by 2722.2222222222.
Worked examples
Example 1 — Convert 1 lb t to long tn:
1 × 0.0003673469 = 0.0003673469 long tn
Example 2 — Convert 100 lb t to long tn:
100 × 0.0003673469 = 0.0367346939 long tn
Real-world example — Metric distance scale-up
One thousand pounds (troy/apothecary) equals one ton (long, uk) — the running distance for a 1K race or the standard metric kilometre-scale step. The simple thousand-fold conversion is the most-used metric distance translation.
1000 lb t × 0.0003673469 = 0.3673469388 long tn
Real-world example — Imperial mile arithmetic
5,280 pounds (troy/apothecary) equals exactly one ton (long, uk). American hikers tracking elevation gain in the smaller unit but trail length in the larger one use this constant every time they read a topographic map.
5280 lb t × 0.0003673469 = 1.9395918367 long tn
Real-world example — Imperial yard-to-mile scale
1,760 pounds (troy/apothecary) equals exactly one ton (long, uk). American athletes and surveyors use this conversion to translate distances quoted in the smaller imperial unit into recognizable fractions of the larger geographic one.
1760 lb t × 0.0003673469 = 0.6465306122 long tn
Pound (troy/apothecary) to Ton (long, UK) conversion table
Standard reference values for converting pounds (troy/apothecary) to tons (long, uk):
| Pound (troy/apothecary) [lb t] | Ton (long, UK) [long tn] |
|---|---|
| 0.01 | 3.673469e-6 |
| 0.1 | 3.673469e-5 |
| 1 | 0.0003673469 |
| 2 | 0.0007346939 |
| 3 | 0.0011020408 |
| 4 | 0.0014693878 |
| 5 | 0.0018367347 |
| 10 | 0.0036734694 |
| 20 | 0.0073469388 |
| 30 | 0.0110204082 |
| 40 | 0.0146938776 |
| 50 | 0.0183673469 |
| 100 | 0.0367346939 |
| 500 | 0.1836734694 |
| 1000 | 0.3673469388 |
Frequently asked questions
How many tons (long, uk) is 1 pound (troy/apothecary)?
How do I convert pounds (troy/apothecary) to tons (long, uk)?
How do I convert tons (long, uk) back to pounds (troy/apothecary)?
How many tons (long, uk) is 100 pounds (troy/apothecary)?
Popular weight unit conversions
Convert Pound (troy/apothecary) to other weight units
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Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (9 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 lb t = 0.0003673469 long tn) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.