What is a barleycorn?

A barleycorn is a historic British length unit equal to one third of an inch, originally based on the length of a grain of barley.

What does Earth's polar radius represent?

Earth's polar radius is the distance from the Earth's center to the mean geographic pole, serving as the semi-minor axis in geodetic reference ellipsoids.

Why convert barleycorn to Earth's polar radius?

Converting barleycorn to Earth's polar radius helps relate small historic measurements to large-scale geodetic values, useful in mapping and Earth science applications.

How to Convert from Barleycorn to Earth's Polar Radius

Learn how to convert barleycorn, a historic British length unit, into Earth's polar radius for geodetic and Earth science applications using our easy-to-use online converter.

Barleycorn

Earth's polar radius

Please check your input. It must be a valid numeric value.

Barleycorn to Earth's polar radius Conversion Table

Barleycorn	Earth's polar radius

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Barleycorn to Earth's polar radius Conversion Table
Barleycorn	Earth's polar radius

Explore More Length Units Converter

What Is This Tool?

This conversion tool allows users to translate measurements from barleycorn, a traditional British unit of length, into Earth's polar radius, an essential geodetic measurement used in mapping and Earth sciences.

How to Use This Tool?

Input the measurement value in barleycorn units
Select barleycorn as the source unit and Earth's polar radius as the target unit
Click the convert button to get the equivalent measurement
Review the result expressed in terms of Earth's polar radius

Key Features

Converts historic length units to global geodetic measurements
Supports British traditional units and Earth's polar radius
Browser-based and easy to use without installation
Provides instant conversion results for mapping and scientific use

Examples

1 barleycorn equals 1.3319118582682e-9 of Earth's polar radius
3 barleycorns convert to approximately 3.9957355748046e-9 Earth's polar radius

Common Use Cases

Interpreting historic British measurements in geodetic contexts
Relating traditional shoe sizing units to global Earth measurements
Assisting satellite orbit modeling by bridging small-scale units with Earth-scale values
Supporting GPS mapping and Earth shape studies involving multiple measurement systems

Tips & Best Practices

Ensure unit selections match the intended conversion direction
Consider the context of use when working with very small unit conversions
Use the tool to assist in merging historical data with modern geodetic systems
Be mindful that the barleycorn unit is mostly of historical interest and conversions are extremely small

Limitations

Barleycorn is an obsolete and very small unit, yielding extremely small conversion results
Variations in Earth's polar radius values from different reference ellipsoids may impact precision
Conversions may have limited practical precision due to scale differences between units

Frequently Asked Questions

What is a barleycorn?: A barleycorn is a historic British length unit equal to one third of an inch, originally based on the length of a grain of barley.
What does Earth's polar radius represent?: Earth's polar radius is the distance from the Earth's center to the mean geographic pole, serving as the semi-minor axis in geodetic reference ellipsoids.
Why convert barleycorn to Earth's polar radius?: Converting barleycorn to Earth's polar radius helps relate small historic measurements to large-scale geodetic values, useful in mapping and Earth science applications.

Key Terminology

Barleycorn: A historic British unit of length equal to one third of an inch, used mainly in traditional measurements.
Earth's Polar Radius: The distance from Earth's center to the mean geographic pole, representing the semi-minor axis of a geodetic reference ellipsoid.
Reference Ellipsoid: A mathematically defined surface used as a base for geodetic calculations, such as WGS84 for GPS mapping.

Quick Knowledge Check

What does one barleycorn measure approximately?

One inch

One third of an inch

One millimeter

Earth's polar radius is used primarily for what purpose?

Satellite orbit modeling

Measuring shoe sizes

Craft tailoring

Why is barleycorn conversion to Earth's polar radius extremely small?

Because barleycorn is obsolete

Because barleycorn is a very small unit

Because Earth's polar radius varies widely

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