Convert Foot to Nail
Convert feet to nails instantly. 1 foot = 5.3333333333 nail — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Nail 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.
Nail
A nail is an Imperial unit of length equal to 2.25 inches (about 57.15 mm). It was historically used in the English cloth trade.
The nail derives from an English cloth-measure tradition dating to medieval times. Standardised at 2.25 inches (or 1/16 of a yard) through English customary practice and ratified by the 1959 International Yard and Pound Agreement.
Nails were historically used to measure cloth, particularly small pieces and ribbons. Rare in modern commerce but appears in historical textile literature and reproduction crafts.
Medieval English cloth-trade origin; standardised at 1/16 yard; fixed exactly at 0.05715 m via the 1959 International Yard and Pound Agreement.
Foot to Nail conversion formula
The relationship between feet and nails:
To convert feet to nails, multiply the value in feet by 5.3333333333. To reverse, multiply nails by 0.1875.
How to use this converter
Type a value into the calculator. The result in nails updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Nail to Foot converter for the reverse direction.
Step-by-step: convert feet to nails
- Write down the value in feet (ft).
- Multiply that value by the factor 5.3333333333.
- The product is the equivalent value in nails (nail).
- To reverse, multiply the nail value by 0.1875.
Worked examples
Example 1 — Convert 1 ft to nail:
1 × 5.3333333333 = 5.3333333333 nail
Example 2 — Convert 100 ft to nail:
100 × 5.3333333333 = 533.3333333333 nail
Real-world example — Fabric and tailoring
One foot of fabric converts to a value in nails commonly used for seam allowances. Garment patterns frequently switch between the two units on a single instruction sheet.
1 ft × 5.3333333333 = 5.3333333333 nail
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 nails. This is the most-used everyday length conversion in metric-using countries.
1.75 ft × 5.3333333333 = 9.3333333333 nail
Real-world example — Pet and accessory dimensions
A 3-foot dog leash equals a tidy round value in nails. Pet-supply shopping frequently mixes the two units across product specifications.
3 ft × 5.3333333333 = 16 nail
Foot to Nail conversion table
Standard reference values for converting feet to nails:
| Foot [ft] | Nail [nail] |
|---|---|
| 0.01 | 0.0533333333 |
| 0.1 | 0.5333333333 |
| 1 | 5.3333333333 |
| 2 | 10.6666666667 |
| 3 | 16 |
| 4 | 21.3333333333 |
| 5 | 26.6666666667 |
| 10 | 53.3333333333 |
| 20 | 106.6666666667 |
| 30 | 160 |
| 40 | 213.3333333333 |
| 50 | 266.6666666667 |
| 100 | 533.3333333333 |
| 500 | 2666.6666666667 |
| 1000 | 5333.3333333333 |
Frequently asked questions
How many nails is 1 foot?
How do I convert feet to nails?
How do I convert nails back to feet?
How many nails is 100 feet?
Popular length unit conversions
Convert Foot to other length units
Show all Foot conversions
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 = 5.3333333333 nail) 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.