Convert Foot to Barleycorn
Convert feet to barleycorns instantly. 1 foot = 35.9999998583 barleycorn — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Barleycorn to Foot converter for the reverse conversion.
Units explained
Foot
A foot is an Imperial and US customary unit of length equal to 12 inches or exactly 0.3048 meters. It is the most commonly used unit of length in everyday measurement in the United States.
The foot's origin is literally the length of a human foot, used as a measurement standard since antiquity. The English foot was standardized at various points in history; the modern international foot (0.3048 m exactly) was fixed by the 1959 International Yard and Pound Agreement.
Feet are used in the US for body height, building dimensions, room sizes, road sign clearances, aviation altitude (feet above sea level), and most everyday distance estimation. The UK uses feet informally for height despite officially being metric.
Used since antiquity; standardized to 0.3048 m exactly by the International Yard and Pound Agreement of 1959. Aviation worldwide uses feet for altitude despite metric adoption elsewhere.
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.
Foot to Barleycorn conversion formula
The relationship between feet and barleycorns:
To convert feet to barleycorns, multiply the value in feet by 35.9999998583. To reverse, multiply barleycorns by 0.0277777779.
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 Foot converter for the reverse direction.
Step-by-step: convert feet to barleycorns
- Write down the value in feet (ft).
- Multiply that value by the factor 35.9999998583.
- The product is the equivalent value in barleycorns (barleycorn).
- To reverse, multiply the barleycorn value by 0.0277777779.
Worked examples
Example 1 — Convert 1 ft to barleycorn:
1 × 35.9999998583 = 35.9999998583 barleycorn
Example 2 — Convert 100 ft to barleycorn:
100 × 35.9999998583 = 3599.9999858268 barleycorn
Real-world example — Fabric and tailoring
One foot 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 ft × 35.9999998583 = 35.9999998583 barleycorn
Real-world example — Body height conversion (reverse direction)
You measure 1.75 feet 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 ft × 35.9999998583 = 62.999999752 barleycorn
Real-world example — Pet and accessory dimensions
A 3-foot dog leash equals a tidy round value in barleycorns. Pet-supply shopping frequently mixes the two units across product specifications.
3 ft × 35.9999998583 = 107.9999995748 barleycorn
Foot to Barleycorn conversion table
Standard reference values for converting feet to barleycorns:
| Foot [ft] | Barleycorn [barleycorn] |
|---|---|
| 0.01 | 0.3599999986 |
| 0.1 | 3.5999999858 |
| 1 | 35.9999998583 |
| 2 | 71.9999997165 |
| 3 | 107.9999995748 |
| 4 | 143.9999994331 |
| 5 | 179.9999992913 |
| 10 | 359.9999985827 |
| 20 | 719.9999971654 |
| 30 | 1079.999995748 |
| 40 | 1439.9999943307 |
| 50 | 1799.9999929134 |
| 100 | 3599.9999858268 |
| 500 | 17999.9999291339 |
| 1000 | 35999.9998582677 |
Frequently asked questions
How many barleycorns is 1 foot?
How do I convert feet to barleycorns?
How do I convert barleycorns back to feet?
How many barleycorns is 100 feet?
Popular length unit conversions
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Metric / SI (18 units)
Imperial / US Customary (26 units)
Nautical (1 units)
Astronomical (9 units)
Atomic / Physics (6 units)
Typographic (3 units)
Sources & references
Conversion factor (1 ft = 35.9999998583 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.