What Is This Tool?
This online converter transforms volume measurements from acre-foot (US survey), commonly used in water management, into tun, a traditional English liquid volume unit perfect for historical and archival applications.
How to Use This Tool?
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Enter the volume value in acre-foot (US survey) that you want to convert
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Select acre-foot (US survey) as the source unit and tun as the target unit
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Click on the convert button to obtain the equivalent volume in tun
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Review the converted result and use provided examples as needed
Key Features
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Converts acre-foot (US survey) volumes to tun with a clear conversion rate
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Supports use cases in water-resource management and historical measurement analysis
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Browser-based and user-friendly interface without the need for installation
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Provides examples to illustrate the conversion process
Examples
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2 acre-feet (US survey) converts to approximately 2586.14 tun
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0.5 acre-foot (US survey) equals about 646.53 tun
Common Use Cases
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Measuring water volumes in reservoirs and dams using acre-foot (US survey)
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Translating modern water volume data into traditional English units for archival or historical studies
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Interpreting capacities of large wine or ale casks in historical documents
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Analyzing old brewery or distillery measurements for engineering or research purposes
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Assisting in historical customs, taxation, and trade record evaluations involving liquid cargoes
Tips & Best Practices
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Confirm unit definitions match your historical or regional context before applying conversions
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Use this converter primarily for research, archival, or educational purposes rather than precise legal or commercial decisions
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Cross-reference conversion results with historical records when analyzing old measures
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Be aware of variations in the tun volume over time and by location
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Leverage examples as guidance for common conversion scenarios
Limitations
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The tun unit volume has regional and historical variations, affecting conversion precision
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Acre-foot (US survey) relates specifically to US survey feet, which may differ from other foot definitions
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Conversions should be applied cautiously for legal or commercial contexts involving historical data
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The provided conversion rate approximates modern values but may not capture historical variations
Frequently Asked Questions
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What does one acre-foot (US survey) represent?
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It is the volume of water covering one acre to a depth of one US survey foot, equal to 43,560 cubic US survey feet.
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What is a tun as a unit of volume?
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A tun is a traditional English liquid volume unit, historically defined as 252 wine gallons, used especially for large casks.
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Why should I use this converter?
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It helps translate modern water volume units into traditional English units for historical research, archival work, and understanding legacy records.
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Are conversion values exact for all contexts?
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No, because the tun's size varies regionally and historically, and the acre-foot uses a specific foot definition, conversions may not be precise in every case.
Key Terminology
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Acre-foot (US survey)
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A volume unit equal to the amount of water covering one acre to a depth of one US survey foot, totaling 43,560 cubic US survey feet.
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Tun
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A traditional English unit of liquid volume historically defined as 252 wine gallons, used mainly for describing large cask capacities.