Convert League to Barleycorn
Convert leagues to barleycorns instantly. 1 league = 570239.9977549607 barleycorn — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Barleycorn to League converter for the reverse conversion.
Units explained
League
A league is an Imperial unit of length equal to 3 miles (about 4.83 km). It is one of the oldest distance units in English usage, historically representing the distance a person could walk in one hour.
The English league derives from the ancient Roman leuga via medieval English customary practice. Standardised at 3 statute miles in English law.
Leagues appear in historical English literature ('seven-league boots'), maritime navigation (a nautical league is 3 nautical miles), and traditional distance descriptions. Modern usage is largely literary.
Medieval English customary origin; standardised at 3 miles; became exact via the 1959 International Yard and Pound Agreement.
Barleycorn
A barleycorn is an Imperial unit of length equal to one third of an inch (about 8.47 mm). It is the basis of UK shoe sizing and is one of the oldest English length units still in use.
The barleycorn derives from the average length of a grain of barley as a natural reference. Standardised at exactly 1/3 inch by the Statute of Edward II in 1324, which used three barleycorns to define an inch.
Barleycorns are the foundation of UK and US children's shoe sizing — each whole size differs by one barleycorn. Also occasionally referenced in horse-handling and historical English literature.
Standardised in 1324 by the Statute of Edward II at 1/3 inch; the value became exact in 1959 when the inch was fixed at 25.4 mm.
League to Barleycorn conversion formula
The relationship between leagues and barleycorns:
To convert leagues to barleycorns, multiply the value in leagues by 570239.9977549607. To reverse, multiply barleycorns by 1.753648e-6.
How to use this converter
Type a value into the calculator. The result in barleycorns updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Barleycorn to League converter for the reverse direction.
Step-by-step: convert leagues to barleycorns
- Write down the value in leagues (lea).
- Multiply that value by the factor 570239.9977549607.
- The product is the equivalent value in barleycorns (barleycorn).
- To reverse, multiply the barleycorn value by 1.753648e-6.
Worked examples
Example 1 — Convert 1 lea to barleycorn:
1 × 570239.9977549607 = 570239.9977549607 barleycorn
Example 2 — Convert 100 lea to barleycorn:
100 × 570239.9977549607 = 5.7024e+7 barleycorn
Real-world example — Geographic to architectural scale
One league equals 100,000 barleycorns. Map scales use this when an architectural site plan (in the smaller unit) must be related to road-network plans (in the larger unit) on the same drawing.
1 lea × 570239.9977549607 = 570239.9977549607 barleycorn
Real-world example — Geographic to architectural conversion
One league equals 100,000 barleycorns. The conversion bridges geographic-scale survey work and architectural-scale building plans on the same drawing.
1 lea × 570239.9977549607 = 570239.9977549607 barleycorn
League to Barleycorn conversion table
Standard reference values for converting leagues to barleycorns:
| League [lea] | Barleycorn [barleycorn] |
|---|---|
| 0.01 | 5702.3999775496 |
| 0.1 | 57023.9997754961 |
| 1 | 570239.9977549607 |
| 2 | 1140479.9955099213 |
| 3 | 1710719.9932648819 |
| 4 | 2280959.9910198427 |
| 5 | 2851199.9887748035 |
| 10 | 5702399.9775496069 |
| 20 | 1.14048e+7 |
| 30 | 1.71072e+7 |
| 40 | 2.28096e+7 |
| 50 | 2.8512e+7 |
| 100 | 5.7024e+7 |
| 500 | 2.8512e+8 |
| 1000 | 5.7024e+8 |
Frequently asked questions
How many barleycorns is 1 league?
How do I convert leagues to barleycorns?
How do I convert barleycorns back to leagues?
How many barleycorns is 100 leagues?
Popular length unit conversions
Convert League to other length units
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Metric / SI (4 units)
Imperial / US Customary (26 units)
Sources & references
Conversion factor (1 lea = 570239.9977549607 barleycorn) 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.