What Is This Tool?
This converter transforms length measurements from perch to rod (US survey) [rd], units traditionally used in land surveying and historical property descriptions. It aids in interpreting old survey documents and converting them into comparable modern units.
How to Use This Tool?
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Enter the value in perch you wish to convert
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Select perch as the from-unit and rod (US survey) as the to-unit
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Click on the convert button to get the equivalent length in rods
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Review the results aligned with historic surveying definitions
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Use results for property, cadastral, or map interpretations
Key Features
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Converts perch to rod (US survey) with precise historical context
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Supports interpretation of legacy surveying and cadastral records
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Based on exact conversion factor between perch and US survey rod
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Helps reconcile measurement discrepancies in legal land documents
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Browser-based tool for quick and accurate unit conversion
Examples
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1 Perch equals 0.999998 Rod (US survey) [rd]
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10 Perches equal 9.99998 Rods (US survey) [rd]
Common Use Cases
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Interpreting and converting historical property deeds and boundary descriptions
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Translating British-based survey units into US customary units for cadastral use
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Reading and updating measurements on old maps and estate plans
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Surveying and marking property boundaries using legacy units
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Reconciliation of historical land records with modern surveying standards
Tips & Best Practices
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Always verify unit definitions when working with historical records
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Consider slight discrepancies caused by different foot standards
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Use the tool to cross-check measurements in legal or cadastral contexts
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Refer to conversion results to maintain consistency in property documentation
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Be aware that the perch is mostly obsolete and requires careful conversion
Limitations
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Minor measurement differences due to varying foot standards (international vs. US survey foot)
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Perch is largely obsolete and may require cautious handling when converting
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Direct compatibility with modern metric systems may be limited without contextual consideration
Frequently Asked Questions
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What is a perch and where is it used?
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A perch is a historical unit of length equal to 16.5 feet, mainly used in surveying and land measurement, especially in older records.
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How does a rod (US survey) relate to a perch?
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A rod (US survey) is equivalent to exactly 16.5 US survey feet, also known as a perch or pole, with a very close conversion ratio between the two units.
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Why is it important to convert perch to rod (US survey)?
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Converting perch to rod (US survey) helps interpret historical land measurements and reconcile them with US customary surveying standards for accuracy.
Key Terminology
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Perch
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A historical length unit equal to 16.5 feet, used primarily in land surveying and old property descriptions.
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Rod (US survey)
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A surveying unit length equal to exactly 16.5 US survey feet, also called perch or pole, used in land measurement and legal documents.
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Survey Chain
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A surveying measure consisting of 4 rods, traditionally used in property and boundary measurements.