Convert Barleycorn to Kiloyard
Convert barleycorns to kiloyards instantly. 1 barleycorn = 9.259259e-6 kiloyard — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Kiloyard to Barleycorn converter for the reverse conversion.
Units explained
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.
Kiloyard
A kiloyard is an Imperial unit of length equal to 1,000 yards (914.4 m). It is rarely used in everyday measurement but appears in some technical and military contexts.
The kiloyard combines the metric-style prefix kilo- (Greek chilioi, thousand) with the yard. Standardised via the 1959 International Yard and Pound Agreement.
Kiloyards appear in some artillery and military range specifications, sport-shooting long-range competitions, and certain industrial applications. Less common than the mile for most distances.
Modern usage; standardised through the 1959 International Yard and Pound Agreement.
Barleycorn to Kiloyard conversion formula
The relationship between barleycorns and kiloyards:
To convert barleycorns to kiloyards, multiply the value in barleycorns by 9.259259e-6. To reverse, multiply kiloyards by 107999.9995748032.
How to use this converter
Type a value into the calculator. The result in kiloyards updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Kiloyard to Barleycorn converter for the reverse direction.
Step-by-step: convert barleycorns to kiloyards
- Write down the value in barleycorns (barleycorn).
- Multiply that value by the factor 9.259259e-6.
- The product is the equivalent value in kiloyards (kyd).
- To reverse, multiply the kiloyard value by 107999.9995748032.
Worked examples
Example 1 — Convert 1 barleycorn to kyd:
1 × 9.259259e-6 = 9.259259e-6 kyd
Example 2 — Convert 100 barleycorn to kyd:
100 × 9.259259e-6 = 0.0009259259 kyd
Real-world example — Ruler-scale measurements
A 30-barleycorn school ruler converts cleanly to kiloyards — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 barleycorn × 9.259259e-6 = 0.0002777778 kyd
Real-world example — Hardware-scale dimensions
A 10-barleycorn fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between barleycorns and kiloyards daily when mixing metric and imperial tools.
10 barleycorn × 9.259259e-6 = 9.259259e-5 kyd
Real-world example — Postcard and small-object dimensions
A postcard is about 5 barleycorns wide. Converting to kiloyards is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 barleycorn × 9.259259e-6 = 4.62963e-5 kyd
Barleycorn to Kiloyard conversion table
Standard reference values for converting barleycorns to kiloyards:
| Barleycorn [barleycorn] | Kiloyard [kyd] |
|---|---|
| 0.01 | 9.259259e-8 |
| 0.1 | 9.259259e-7 |
| 1 | 9.259259e-6 |
| 2 | 1.851852e-5 |
| 3 | 2.777778e-5 |
| 4 | 3.703704e-5 |
| 5 | 4.62963e-5 |
| 10 | 9.259259e-5 |
| 20 | 0.0001851852 |
| 30 | 0.0002777778 |
| 40 | 0.0003703704 |
| 50 | 0.000462963 |
| 100 | 0.0009259259 |
| 500 | 0.0046296296 |
| 1000 | 0.0092592593 |
Frequently asked questions
How many kiloyards is 1 barleycorn?
How do I convert barleycorns to kiloyards?
How do I convert kiloyards back to barleycorns?
How many kiloyards is 100 barleycorns?
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Metric / SI (4 units)
Imperial / US Customary (26 units)
Sources & references
Conversion factor (1 barleycorn = 9.259259e-6 kyd) 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 Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.