What is Earth's polar radius?

Earth's polar radius is the distance from Earth's center to the mean geographic pole along the rotation axis, representing the semi-minor axis of the reference ellipsoid such as WGS84.

What is a ken in Japanese measurements?

A ken is a traditional Japanese length unit standardized to about 1.818 meters, used mainly to describe bays between structural pillars and room dimensions in architecture.

Why convert Earth's polar radius into ken?

Converting Earth's polar radius to ken helps translate large geodetic distances into traditional Japanese architectural units for historical analysis and building design proportioning.

How to Convert from Earth's Polar Radius to Ken

Easily convert measurements from Earth's polar radius to the traditional Japanese length unit ken using our online unit converter. Perfect for geodesy and architectural applications.

Earth's polar radius

Ken

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Earth's polar radius to Ken Conversion Table

Earth's polar radius	Ken

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

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

Explore More Length Units Converter

What Is This Tool?

This tool allows users to convert length measurements from Earth's polar radius, a geodetic parameter, to ken, a traditional Japanese unit used primarily in architecture and carpentry. It bridges the gap between large-scale Earth measurements and traditional building proportions.

How to Use This Tool?

Enter the value measured in Earth's polar radius units
Select the 'Earth's polar radius' as the starting unit
Choose 'ken' as the target unit for conversion
Click the convert button to get the length in ken
Use the converted result for architectural or scientific analysis

Key Features

Converts from Earth's polar radius to ken based on a defined conversion rate
Supports applications in geodesy, satellite orbit analysis, and Japanese architectural design
Browser-based and easy to use for quick length conversions
Provides exact conversion using the WGS84 ellipsoid reference for Earth's polar radius
Handles large numerical conversions relevant to Earth science and traditional building layouts

Examples

2 Earth's polar radius equals 6001602.1828206 ken
0.5 Earth's polar radius is equal to 1500400.54570515 ken

Common Use Cases

Defining the semi-minor axis of geodetic ellipsoids like WGS84 for mapping and GPS
Converting geodetic coordinates and calculating ellipsoidal heights
Modeling satellite orbits and interpreting Earth-shape studies
Specifying bay widths and room dimensions in traditional Japanese architecture
Recording modular measurements in carpentry and historical building plans

Tips & Best Practices

Ensure correct unit selection to avoid conversion errors
Use the tool primarily for large-scale geodetic and architectural purposes rather than everyday measurements
Understand that the ken unit may vary regionally and historically
Refer to the WGS84 ellipsoid for the standard polar radius value
Consider the practical relevance of large numbers when converting from Earth's polar radius to ken

Limitations

The ken unit's exact length can vary depending on historical and regional standards
Earth's polar radius as a very large measure produces impractically large numbers in ken for daily architectural use
Conversion precision depends on the ken standardization and specific ellipsoid model used

Frequently Asked Questions

What is Earth's polar radius?: Earth's polar radius is the distance from Earth's center to the mean geographic pole along the rotation axis, representing the semi-minor axis of the reference ellipsoid such as WGS84.
What is a ken in Japanese measurements?: A ken is a traditional Japanese length unit standardized to about 1.818 meters, used mainly to describe bays between structural pillars and room dimensions in architecture.
Why convert Earth's polar radius into ken?: Converting Earth's polar radius to ken helps translate large geodetic distances into traditional Japanese architectural units for historical analysis and building design proportioning.

Key Terminology

Earth's Polar Radius: The distance from Earth's center to the mean geographic pole along the rotation axis, serving as the semi-minor axis of reference ellipsoids.
Ken: A traditional Japanese unit of length, standardized to approximately 1.818 meters, used for structural bay spacing and architectural proportions.
WGS84: A widely used geodetic reference ellipsoid defining Earth's size and shape, including exact polar radius measurements.

Quick Knowledge Check

What does Earth's polar radius measure?

Distance around the equator

Distance from Earth's center to the geographic pole

Height above sea level

In traditional Japanese architecture, what does ken represent?

A type of roof tile

The bay or spacing between pillars

A measurement of wall thickness

What is the approximate length of one ken?

0.303 meters

1.818 meters

6 meters

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