Convert Rope to Barleycorn
Convert ropes to barleycorns instantly. 1 rope = 719.9999971654 barleycorn — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Barleycorn to Rope converter for the reverse conversion.
Units explained
Rope
A rope is an Imperial unit of length equal to 20 feet (6.096 m). It was historically used in English customary measurement, particularly in masonry and some land contexts.
The rope derives from English customary practice and represents 20 feet. Less commonly used than the rod-perch-pole family.
Ropes appear in historical English construction and surveying records but are rare in modern practice. Some legacy specifications and contracts may still reference the unit.
Medieval English customary origin; standardised at 20 feet; 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.
Rope to Barleycorn conversion formula
The relationship between ropes and barleycorns:
To convert ropes to barleycorns, multiply the value in ropes by 719.9999971654. To reverse, multiply barleycorns by 0.0013888889.
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 Rope converter for the reverse direction.
Step-by-step: convert ropes to barleycorns
- Write down the value in ropes (rope).
- Multiply that value by the factor 719.9999971654.
- The product is the equivalent value in barleycorns (barleycorn).
- To reverse, multiply the barleycorn value by 0.0013888889.
Worked examples
Example 1 — Convert 1 rope to barleycorn:
1 × 719.9999971654 = 719.9999971654 barleycorn
Example 2 — Convert 100 rope to barleycorn:
100 × 719.9999971654 = 71999.9997165354 barleycorn
Real-world example — Fabric and tailoring
One rope of fabric converts to a value in barleycorns commonly used for seam allowances. Garment patterns frequently switch between the two units on a single instruction sheet.
1 rope × 719.9999971654 = 719.9999971654 barleycorn
Real-world example — Body height conversion (reverse direction)
You measure 1.75 ropes tall and need to fill in a gym membership form or medical record that asks for height in barleycorns. This is the most-used everyday length conversion in metric-using countries.
1.75 rope × 719.9999971654 = 1259.9999950394 barleycorn
Real-world example — Pet and accessory dimensions
A 3-rope dog leash equals a tidy round value in barleycorns. Pet-supply shopping frequently mixes the two units across product specifications.
3 rope × 719.9999971654 = 2159.9999914961 barleycorn
Rope to Barleycorn conversion table
Standard reference values for converting ropes to barleycorns:
| Rope [rope] | Barleycorn [barleycorn] |
|---|---|
| 0.01 | 7.1999999717 |
| 0.1 | 71.9999997165 |
| 1 | 719.9999971654 |
| 2 | 1439.9999943307 |
| 3 | 2159.9999914961 |
| 4 | 2879.9999886614 |
| 5 | 3599.9999858268 |
| 10 | 7199.9999716535 |
| 20 | 14399.9999433071 |
| 30 | 21599.9999149606 |
| 40 | 28799.9998866142 |
| 50 | 35999.9998582677 |
| 100 | 71999.9997165354 |
| 500 | 359999.9985826772 |
| 1000 | 719999.9971653543 |
Frequently asked questions
How many barleycorns is 1 rope?
How do I convert ropes to barleycorns?
How do I convert barleycorns back to ropes?
How many barleycorns is 100 ropes?
Popular length unit conversions
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Metric / SI (4 units)
Imperial / US Customary (26 units)
Sources & references
Conversion factor (1 rope = 719.9999971654 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 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.