Rod to Span Converter
Convert Rod (rd) to Span (span) instantly. 1 rd = 22 span.
Length Converter
31 units available
1 rd = 22 span
Formula:
span = rd × 22With your value: 1 rd = 22 span
How big is that?
Everyday references on a logarithmic scale, all expressed in rod so you can sanity-check the result.
Other Rod to Span conversions
Rod to Span Conversion Table
| Rod (rd) | Span (span) |
|---|---|
| 0.5 | 11 |
| 1 | 22 |
| 2 | 44 |
| 5 | 110 |
| 10 | 220 |
| 15 | 330 |
| 20 | 440 |
| 25 | 550 |
| 50 | 1,100 |
| 100 | 2,200 |
| 250 | 5,500 |
| 500 | 11,000 |
| 1000 | 22,000 |
Span to Rod Conversion Table
| Span (span) | Rod (rd) |
|---|---|
| 0.5 | 0.022727 |
| 1 | 0.045455 |
| 2 | 0.090909 |
| 5 | 0.227273 |
| 10 | 0.454545 |
| 15 | 0.681818 |
| 20 | 0.909091 |
| 25 | 1.136364 |
| 50 | 2.272727 |
| 100 | 4.545455 |
| 250 | 11.363636 |
| 500 | 22.727273 |
| 1000 | 45.454545 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Rod (rd)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Span (span)
Length
Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Rod to Span
To convert from Rod (rd) to Span (span), multiply the value by 22.
Formula: span = rd × 22
Reverse: rd = span × 0.0454545455
Step-by-Step Example
- Start with your value in Rod. For example: 5 rd
- Multiply by the conversion factor: 5 x 22
- The result is: 110 span
About Rod
The rod (pole or perch) equals 16.5 feet (5.0292 m). Four rods make a chain, and it still appears in older deeds and fencing estimates.
Common uses: historic deeds, fencing, surveying.
About Span
The span (span) is a unit of distance and length. One span equals 0.2286 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: length calculations, engineering and science, education.
Frequently Asked Questions
How many Span are in 1 Rod?
There are exactly 22 Span in 1 Rod. This means the conversion factor from Rod to Span is 22.
What is the formula to convert Rod to Span?
The formula to convert Rod to Span is: span = rd × 22. For example, to convert 10 Rod to Span, you would multiply 10 by 22.
What is a Rod?
The rod (pole or perch) equals 16.5 feet (5.0292 m). Four rods make a chain, and it still appears in older deeds and fencing estimates.
What is a Span?
The span (span) is a unit of distance and length. One span equals 0.2286 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Rod?
The Rod is commonly used in historic deeds, fencing, surveying.
Related Length Conversions
Cite this page
UnitConvertLab. (2026). Rod to Span converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/rod-to-span