Convert Perch to Yard
Convert perches to yards instantly. 1 perch = 5.5 yard — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Yard to Perch converter for the reverse conversion.
Units explained
Perch
A perch is an Imperial unit of length identical to the rod — 16.5 feet (about 5.03 m). The names 'rod', 'perch', and 'pole' all refer to the same surveying unit and differ only by regional preference.
Like the rod, the perch derives from medieval English land-surveying. The name 'perch' was particularly common in legal land descriptions in Ireland and parts of the UK.
Perches appear in legacy land descriptions in Ireland, the UK, and historical US documents. Modern usage is rare.
Medieval English surveying origin; identical to the rod since 1620; became exact via the 1959 International Yard and Pound Agreement.
Yard
A yard is an Imperial and US customary unit of length equal to 3 feet or exactly 0.9144 meters. It is used for medium distances, particularly in athletics and fabric/textile measurement.
The yard's origin is contested but traditionally attributed to the length from the tip of King Henry I's nose to the end of his outstretched thumb. It was standardized in English law from the medieval period and definitively fixed at 0.9144 m exactly by the 1959 International Yard and Pound Agreement.
Yards are used in American football (10 yards for a first down), golf course distances, fabric and carpet sales in the US, and short-distance running events. The UK uses yards informally and on road signs for short distances.
Standardized in English law from the Middle Ages; fixed at 0.9144 m exactly by the 1959 International Yard and Pound Agreement.
Perch to Yard conversion formula
The relationship between perches and yards:
To convert perches to yards, multiply the value in perches by 5.5. To reverse, multiply yards by 0.1818181818.
How to use this converter
Type a value into the calculator. The result in yards updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Yard to Perch converter for the reverse direction.
Step-by-step: convert perches to yards
- Write down the value in perches (perch).
- Multiply that value by the factor 5.5.
- The product is the equivalent value in yards (yd).
- To reverse, multiply the yard value by 0.1818181818.
Worked examples
Example 1 — Convert 1 perch to yd:
1 × 5.5 = 5.5 yd
Example 2 — Convert 100 perch to yd:
100 × 5.5 = 550 yd
Real-world example — Adult height conversion
A 1.8-perch-tall person measures a value in yards 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 perch × 5.5 = 9.9 yd
Real-world example — Fabric purchase length
Two perches of fabric equals a value in yards essential for tailors and textile buyers sourcing material from international suppliers that quote in different units.
2 perch × 5.5 = 11 yd
Real-world example — Maritime depth conversion
A 10-perch sounding depth converts cleanly into yards. Recreational divers and sailors translate between the two units whenever they read legacy charts against modern depth-sounder displays.
10 perch × 5.5 = 55 yd
Perch to Yard conversion table
Standard reference values for converting perches to yards:
| Perch [perch] | Yard [yd] |
|---|---|
| 0.01 | 0.055 |
| 0.1 | 0.55 |
| 1 | 5.5 |
| 2 | 11 |
| 3 | 16.5 |
| 4 | 22 |
| 5 | 27.5 |
| 10 | 55 |
| 20 | 110 |
| 30 | 165 |
| 40 | 220 |
| 50 | 275 |
| 100 | 550 |
| 500 | 2750 |
| 1000 | 5500 |
Frequently asked questions
How many yards is 1 perch?
How do I convert perches to yards?
How do I convert yards back to perches?
How many yards is 100 perches?
Popular length unit conversions
Convert Perch to other length units
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Metric / SI (4 units)
Imperial / US Customary (26 units)
Sources & references
Conversion factor (1 perch = 5.5 yd) 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.