Convert Rod to Furlong
Convert rods to furlongs instantly. 1 rod = 0.025 furlong — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Furlong to Rod converter for the reverse conversion.
Units explained
Rod
A rod is an Imperial unit of length equal to 16.5 feet (about 5.03 m). It is also called a perch or pole. Used historically in English and American land surveying.
The rod derives from medieval English land-surveying practice. Standardised at 16.5 feet (= 25 links of a surveyor's chain = 1/4 chain) by Edmund Gunter in 1620.
Rods are the standard unit in legacy US public-land-survey records, where lot dimensions are typically expressed in rods and chains. Modern surveyors generally use feet or meters but legacy deeds remain in rods.
Defined by Edmund Gunter in 1620 as 16.5 feet via the chain-based survey system; became exact via the 1959 International Yard and Pound Agreement.
Furlong
A furlong is an Imperial unit of length equal to 660 feet, or exactly one eighth of a mile (about 201.17 m). It is the longest unit in the traditional English farm-and-survey system.
The furlong derives from Old English furh (furrow) + lang (long) — originally the length of a furrow in a typical medieval English open field. Standardised at 660 feet (= 10 chains = 220 yards = 1/8 mile) in medieval times.
Furlongs are the standard distance unit in horse racing (e.g., 'The race is 8 furlongs'), historical English farming and surveying, and occasional poetic or rhetorical usage. Modern racing courses worldwide list distances in furlongs.
Medieval English farming origin; standardised at 660 feet; remains the official distance unit in flat-racing thoroughbred horse races worldwide.
Rod to Furlong conversion formula
The relationship between rods and furlongs:
To convert rods to furlongs, multiply the value in rods by 0.025. To reverse, multiply furlongs by 40.
How to use this converter
Type a value into the calculator. The result in furlongs updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Furlong to Rod converter for the reverse direction.
Step-by-step: convert rods to furlongs
- Write down the value in rods (rd).
- Multiply that value by the factor 0.025.
- The product is the equivalent value in furlongs (fur).
- To reverse, multiply the furlong value by 40.
Worked examples
Example 1 — Convert 1 rd to fur:
1 × 0.025 = 0.025 fur
Example 2 — Convert 100 rd to fur:
100 × 0.025 = 2.5 fur
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 rd × 0.025 = 0.025 fur
Real-world example — Adult height conversion
A 1.8-rod-tall person measures a value in furlongs 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 rd × 0.025 = 0.045 fur
Real-world example — Fabric purchase length
Two rods of fabric equals a value in furlongs essential for tailors and textile buyers sourcing material from international suppliers that quote in different units.
2 rd × 0.025 = 0.05 fur
Rod to Furlong conversion table
Standard reference values for converting rods to furlongs:
| Rod [rd] | Furlong [fur] |
|---|---|
| 0.01 | 0.00025 |
| 0.1 | 0.0025 |
| 1 | 0.025 |
| 2 | 0.05 |
| 3 | 0.075 |
| 4 | 0.1 |
| 5 | 0.125 |
| 10 | 0.25 |
| 20 | 0.5 |
| 30 | 0.75 |
| 40 | 1 |
| 50 | 1.25 |
| 100 | 2.5 |
| 500 | 12.5 |
| 1000 | 25 |
Frequently asked questions
How many furlongs is 1 rod?
How do I convert rods to furlongs?
How do I convert furlongs back to rods?
How many furlongs is 100 rods?
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Metric / SI (4 units)
Imperial / US Customary (26 units)
Sources & references
Conversion factor (1 rd = 0.025 fur) 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.