What is a length converter?

A length converter helps you convert between different units of length quickly and accurately.

How do I convert Earth polar radius to vara castellana?

Simply enter the value in the Earth polar radius input field, and the converter will show you the equivalent value in vara castellana instantly.

Is this length converter free to use?

Yes, this length converter is completely free and easy to use for all your conversion needs.

Can I switch between Earth polar radius and vara castellana easily?

Yes, there is a switch button provided to quickly swap the conversion direction between Earth polar radius and vara castellana.

How accurate are the conversion results?

The conversion results are calculated using precise formulas to ensure accuracy for most practical purposes.

Convert Earth polar radius to vara castellana Online

Convert Earth polar radius to vara castellana Online | Free Length Converter

Earth Polar Radius

The Earth's polar radius is the distance from the center of the Earth to the North or South Pole. It measures the Earth’s radius along its rotational axis.

Its value is approximately 6,356.8 kilometers (about 3,949.9 miles).
The Earth is an oblate spheroid, so the polar radius is slightly shorter than the equatorial radius due to the planet's flattening at the poles.
This measurement is crucial for geodesy, understanding Earth’s shape, and satellite navigation.

Key facts:

Polar radius ≈ 6,356.8 km
Smaller than equatorial radius by about 21.3 km
Important for precise Earth modeling and mapping

The difference between the polar and equatorial radius reflects the Earth’s rotation and its effect on the planet’s shape.

Vara Castellana

The vara castellana is a traditional Spanish unit of length that was widely used in Spain and its former colonies. It is roughly equivalent to 0.8359 meters (about 32.9 inches).

The vara castellana was commonly used in land measurement, construction, and textiles. Its length could vary slightly by region and time, but the standardized vara castellana became an important reference for legal and commercial measurements.

Key points:

1 vara castellana ≈ 0.8359 meters (32.9 inches)
Used extensively in Spain and Spanish America
Common in land surveying, building, and textile measurement
Predecessor to modern metric units in Spanish-speaking countries

Though largely replaced by the metric system, the vara castellana remains relevant in historical documents and land records.

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From:		Earth polar radius
To:		vara castellana

Convert Earth polar radius to vara castellana Online | Free Length Converter

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