Convert Foot to Ell
Convert feet to ells instantly. 1 foot = 0.2666666667 ell — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ell 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.
Ell
An ell is an Imperial unit of length equal to 45 inches (1.143 m), historically used as the standard measure of cloth in English commerce.
The ell derives from old English elna (forearm) and was standardised in medieval English trade as the cloth-measuring yard equivalent. The English ell is 45 inches; other regional ells differed.
Ells appear in historical English commerce records (especially cloth and tapestry trade). Used in legal documents through the 19th century; rare in modern commerce but referenced in literary and historical contexts.
Medieval English cloth-trade origin; standardised at 45 inches; became exact via the 1959 International Yard and Pound Agreement.
Foot to Ell conversion formula
The relationship between feet and ells:
To convert feet to ells, multiply the value in feet by 0.2666666667. To reverse, multiply ells by 3.75.
How to use this converter
Type a value into the calculator. The result in ells updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Ell to Foot converter for the reverse direction.
Step-by-step: convert feet to ells
- Write down the value in feet (ft).
- Multiply that value by the factor 0.2666666667.
- The product is the equivalent value in ells (ell).
- To reverse, multiply the ell value by 3.75.
Worked examples
Example 1 — Convert 1 ft to ell:
1 × 0.2666666667 = 0.2666666667 ell
Example 2 — Convert 100 ft to ell:
100 × 0.2666666667 = 26.6666666667 ell
Real-world example — Maritime depth conversion
A 10-foot sounding depth converts cleanly into ells. Recreational divers and sailors translate between the two units whenever they read legacy charts against modern depth-sounder displays.
10 ft × 0.2666666667 = 2.6666666667 ell
Real-world example — Reference scenario in case of fallback
Conversion between human-scale length units is the everyday workflow of architecture, athletics, and apparel design — three of the most common contexts that span metric and imperial systems.
1 ft × 0.2666666667 = 0.2666666667 ell
Real-world example — Adult height conversion
A 1.8-foot-tall person measures a value in ells that converts the height to the unit favoured by American forms, schools, or driver's licences. This is daily routine for anyone living between metric and imperial systems.
1.8 ft × 0.2666666667 = 0.48 ell
Foot to Ell conversion table
Standard reference values for converting feet to ells:
| Foot [ft] | Ell [ell] |
|---|---|
| 0.01 | 0.0026666667 |
| 0.1 | 0.0266666667 |
| 1 | 0.2666666667 |
| 2 | 0.5333333333 |
| 3 | 0.8 |
| 4 | 1.0666666667 |
| 5 | 1.3333333333 |
| 10 | 2.6666666667 |
| 20 | 5.3333333333 |
| 30 | 8 |
| 40 | 10.6666666667 |
| 50 | 13.3333333333 |
| 100 | 26.6666666667 |
| 500 | 133.3333333333 |
| 1000 | 266.6666666667 |
Frequently asked questions
How many ells is 1 foot?
How do I convert feet to ells?
How do I convert ells back to feet?
How many ells 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 = 0.2666666667 ell) 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.