Foot to Yard
ft
yd
Conversion History
| Conversion | Reuse | Delete |
|---|---|---|
| No conversion history to show. | ||
Quick Reference Table (Foot to Yard)
| Foot (ft) | Yard (yd) |
|---|---|
| 1 | 0.33333333333333333333 |
| 3 | 1 |
| 5 | 1.66666666666666666667 |
| 6 | 2 |
| 10 | 3.33333333333333333333 |
| 100 | 33.33333333333333333333 |
About Foot (ft)
A foot (ft) is a unit of length in the imperial and US customary systems, defined as exactly 12 inches or 0.3048 meters. It is the primary unit for human height in the United States and the global standard for altitude in aviation — aircraft worldwide report altitude in feet. Construction lumber dimensions, room sizes, and ceiling heights in the US are nearly always specified in feet and inches. One foot is also the basis for the nautical fathom (6 feet).
An average adult male is about 5 feet 9 inches tall. A standard residential ceiling is 8 feet high. Commercial aircraft cruise at around 35,000 feet.
Etymology: Named after the human foot. Old English "fōt" traces to Proto-Germanic "fōts", cognate with Latin "pes" and Greek "pous" — all meaning foot.
About Yard (yd)
A yard (yd) is a unit of length in the imperial and US customary systems, defined as exactly 3 feet or 0.9144 meters. It is the standard unit for American football field markings and textile measurements in the US and UK. Fabric, carpet, and turf are commonly sold by the yard. Historically the yard was defined as the distance from King Henry I's nose to the tip of his outstretched thumb — though it has since been precisely standardized.
An American football field is 100 yards long. A standard bolt of fabric is typically sold by the yard. A backyard garden is often a few hundred square yards.
Etymology: From Old English "gerd" or "gierd" (rod, staff). The measurement was standardized in England during the medieval period and formalised in the Weights and Measures Act.
Foot – Frequently Asked Questions
How long is a foot?
A foot is exactly 12 inches or 0.3048 meters — about the length of a standard 30 cm ruler. An average adult male foot is close to, but not exactly, one foot (typically 10–11 inches).
How many feet are in a mile?
Exactly 5,280 feet equal one mile. There are 3 feet in a yard, 6 feet in a fathom, and 660 feet in a furlong. The 5,280 number originates from 8 furlongs of 660 feet — a historical land measurement system.
Why is lumber sold as "2×4" when it doesn't actually measure 2 by 4 inches?
A "2×4" starts as a rough-sawn board measuring 2 inches by 4 inches. After kiln-drying and planing smooth, it shrinks to 1.5 × 3.5 inches. The lumber industry kept the nominal (pre-planing) names because sawmills had used them for over a century. A 2×6 is really 1.5 × 5.5 inches, a 2×8 is 1.5 × 7.25 inches, and so on. The convention frustrates DIYers but is so deeply embedded in building codes and construction practice that changing it would require rewriting thousands of structural engineering tables.
Why does the US express height in feet and inches while metric countries use centimeters?
The US retained imperial units after independence from Britain, and feet-and-inches became culturally entrenched in medical records, sports statistics, and everyday conversation. Metric countries typically express height as a single centimeter number — "175 cm" — which is simpler than "5 feet 9 inches." The US has no legal requirement to switch, so the convention remains unchanged.
What is the difference between the international foot and the US survey foot?
The international foot (used everywhere) is exactly 0.3048 meters. The US survey foot is slightly different: exactly 1200/3937 meters ≈ 0.30480061 meters. The difference is about 2 parts per million — negligible for most purposes, but detectable over long surveying distances. The US survey foot was officially retired in 2023; the international foot is now the US legal standard for all purposes.
Yard – Frequently Asked Questions
How long is a yard?
A yard is exactly 3 feet (36 inches) or 0.9144 meters — roughly the distance from a person's nose to the tip of their outstretched thumb, or just under one meter.
How many yards are in a mile?
Exactly 1,760 yards equal one mile. There are 220 yards in a furlong, 4,840 square yards in an acre, and 5,280 feet in a mile (which is 1,760 yards × 3 feet).
Where is the yard used today?
The yard is used primarily in the United States and to a lesser extent the UK. It appears in American football (field dimensions and play distances), fabric and carpet retail, golf course hole distances, and some forms of lawn and garden measurement.
Why does American football use yards instead of meters?
American football's 100-yard field was codified in the 19th century when imperial units were standard in the US. The game's rules, field markings, and terminology — "first down and 10 yards" — became deeply ingrained before any metric pressure emerged. Since American football remained a predominantly US sport, no international standardisation ever pushed for conversion to meters.
Why is fabric sold by the yard rather than the meter in the US?
The US textile industry standardized on yards before the 20th century, when imperial units dominated trade and manufacturing. Bolts of fabric, sewing patterns, and cutting tables were designed around the yard. The industry never converted despite metrication pressure, partly because doing so would require re-standardising every commercial pattern, retailer unit, and sewing instruction simultaneously. In metric countries, fabric is sold by the meter.