Wa to Vara Conversion Calculator: Free Online Tool

Convert wa to varas with our free online length converter.

Wa to Vara Calculator

Wa
Vara

How to Use the Calculator:

  1. Enter the value you want to convert in the 'From' field (Wa).
  2. The converted value in Vara will appear automatically in the 'To' field.
  3. Use the dropdown menus to select different units within the Length category.
  4. Click the swap button (⇌) to reverse the conversion direction.

How to Convert Wa to Vara

Converting Wa to Vara involves multiplying the value by a specific conversion factor, as shown in the formula below.

Formula:

1 Wa = 2.386065 varas

Example Calculation:

Convert 10 wa: 10 × 2.386065 = 23.86065 varas

Disclaimer: For Reference Only

These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.

Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.

What is a Wa and a Vara?

The Wa (วา) is a traditional Thai unit of length. It is legally defined in relation to the metric system as exactly 2 meters.

The Wa serves as a fundamental unit within the traditional Thai system of measurement, particularly for land area. It is roughly equivalent to the distance between a person's outstretched fingertips when their arms are extended horizontally to the sides (similar to a fathom).

The Vara (Spanish and Portuguese for "rod" or "pole") is a traditional Iberian unit of length, roughly comparable to the English yard. Its precise length varied significantly depending on the region and historical period, reflecting local customs and lack of centralized standardization before the metric era.

Commonly cited values include:

  • Castilian Vara (Vara de Castilla): Approximately 83.59 centimeters (cm) or 32.91 inches (in). This was arguably the most influential standard in Spain and many of its colonies.
  • Portuguese Vara: Typically longer, around 110 cm or 43.3 inches.
  • Texas Vara: Legally defined in Texas as exactly 33 1/3 inches (approximately 84.67 cm).

Other regional variations existed throughout Spain, Portugal, Latin America, and other territories under their influence.

Note: The Wa is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Vara belongs to the imperial/US customary system.

History of the Wa and Vara

The Wa has been used in Thailand (formerly Siam) for centuries, likely originating from anthropomorphic measurements like the arm span. It was a practical unit for everyday measurements, construction, and land surveying.

  • Traditional System: The Wa was part of a system that included smaller units like the khuep (span, ~25 cm), sok (cubit, ~50 cm, 1 Wa = 4 Sok), and larger units like the sen (rope, 1 Sen = 20 Wa).
  • Standardization: During the modernization reforms under King Chulalongkorn (Rama V) in the late 19th and early 20th centuries, Thailand began standardizing its weights and measures. The Weights and Measures Act of 1923 formally defined traditional units in terms of the metric system. The Wa was officially set at exactly 2 meters.
  • Metrication: While Thailand officially adopted the metric system as its primary standard, traditional units like the Wa remain legally defined and widely used, especially in specific contexts like land measurement.

The Vara likely originated from Roman units like the virga and became a fundamental measure in Spain and Portugal during the Middle Ages. Its use spread extensively through colonization from the 15th century onwards, becoming the standard for land measurement and trade in vast territories across the Americas (including areas now part of the US like Texas, California, Florida), Africa, and Asia.

Despite attempts to standardize, such as establishing the Vara de Castilla (sometimes associated with Burgos), enforcement across diverse and distant colonies was inconsistent. This led to the development and persistence of numerous local Varas, often differing slightly based on regional decrees or customary usage. For example:

  • The Mexican Vara was later standardized at approximately 83.8 cm, very close to the Castilian.
  • The Texas Vara was given its specific legal definition (33 1/3 inches) which remains crucial for interpreting historical land grants in the state.

The adoption of the metric system, beginning in the 19th century, gradually led to the official obsolescence of the Vara in most countries. However, its historical importance, particularly in land records, ensures its continued relevance.

Common Uses for wa and varas

Explore the typical applications for both Wa (imperial/US) and Vara (imperial/US) to understand their common contexts.

Common Uses for wa

The Wa's most significant modern use is in land measurement, but it historically had broader applications:

  • Land Area: This is the most common contemporary use. Land area in Thailand is almost exclusively measured in Tarang Wa (ตารางวา - Square Wa).
    • 1 Tarang Wa = 4 square meters (2m x 2m)
    • 1 Ngan (งาน) = 100 Tarang Wa (400 sq m)
    • 1 Rai (ไร่) = 4 Ngan = 400 Tarang Wa (1600 sq m) Property deeds, real estate listings, and land surveys invariably use Rai, Ngan, and Tarang Wa.
  • Length Measurement: While meters are now standard for most length measurements (textiles, construction materials), the Wa might still be used informally or in traditional contexts. Historically, it was used for measuring distances, building dimensions, rope lengths, etc.
  • Construction & Architecture: Traditionally used for laying out building plots and determining dimensions in Thai architecture.
  • Cultural Context: Understanding the Wa and its related area units is essential for navigating real estate, agriculture, and historical contexts in Thailand.

Common Uses for varas

Historically, the Vara was a primary unit for:

  • Land Surveying: Measuring property boundaries, town lots, roads, and vast land grants. It is frequently encountered in historical deeds and surveys throughout Latin America and the Southwestern United States.
  • Trade and Commerce: Measuring textiles (cloth), rope, lumber, and other goods sold by length.
  • Architecture and Construction: Laying out building foundations, measuring walls, and quantifying construction materials.
  • Agriculture: Measuring field dimensions or distances for planting.

Its use today is almost entirely historical or related to the interpretation of old documents and land titles.

Frequently Asked Questions

Questions About Wa (wa)

How long is a Wa?

A Wa is defined as exactly:

  • 2 meters (m)
  • 200 centimeters (cm)
  • Approximately 6.5617 feet (ft)
  • Approximately 78.74 inches (in)

What are the related traditional Thai length units?

The Wa fits into a system, often based on factors of 2 and 10:

  • Smaller Units:
    • 1 Wa = 4 Sok (ศอก - cubit, ~50 cm)
    • 1 Sok = 2 Khuep (คืบ - span, ~25 cm)
    • 1 Khuep = 12 Nio (นิ้ว - finger breadth, ~2.08 cm, not the English inch)
  • Larger Unit:
    • 1 Sen (เส้น - rope/chain) = 20 Wa (40 meters)
    • 1 Yot (โยชน์ - league) = 400 Sen (16 kilometers)

How is the Wa used for area measurement?

The primary unit for land area is the Tarang Wa (Square Wa):

  • 1 Tarang Wa = 1 Wa × 1 Wa = 2 m × 2 m = 4 square meters Larger area units are based on the Tarang Wa:
  • 1 Ngan = 100 Tarang Wa (400 m²)
  • 1 Rai = 4 Ngan = 400 Tarang Wa (1600 m²)
  • (For reference, 1 Acre ≈ 2.53 Rai, 1 Hectare = 6.25 Rai)

Is the Wa an SI unit?

No, the Wa is not an SI unit. It is a traditional Thai unit, although its legal definition is based on the SI unit, the meter (m).

Is the Wa still used today?

Yes, absolutely. While the metric system is the official standard for science, commerce, and industry, the Wa (especially as Tarang Wa for area) remains the standard unit for land measurement in Thailand. It is legally recognized and used in all official land documents and real estate transactions. Its use for linear measurement is less common but may still occur informally or in traditional settings.

About Vara (vara)

Why does the length of a Vara vary so much?

The variation stems from several factors:

  • Long History: The unit was used for centuries before rigorous international standards like the metric system existed.
  • Decentralized Standards: Measurement standards were often set locally or regionally (by kingdom, province, or even city) rather than being effectively enforced across entire empires.
  • Physical Standards: Early standards were often based on physical rods, which could vary slightly or degrade over time.
  • Customary Usage: Local trade practices and customs often solidified specific lengths for the Vara in different areas. While influential standards like the Castilian Vara existed, practical enforcement across vast colonial territories was difficult, allowing regional variations to flourish and persist.

Is the Vara still used today?

Officially, the Vara has been superseded by the metric system in Spain, Portugal, and all Latin American countries. However, it remains highly relevant in specific contexts:

  • Historical Land Records: It is essential for interpreting historical land surveys, deeds, and grants, particularly in Texas, California, New Mexico, Florida, and throughout Latin America. Legal property descriptions may still reference original measurements in Varas.
  • Historical Research: Understanding the Vara is crucial for historians studying architecture, urban planning, trade, or agriculture in regions formerly under Spanish or Portuguese rule.
  • Cultural Context: While not used for practical measurement, the term might appear in historical literature, place names, or cultural discussions. In very rare, localized instances, informal references might persist among older generations.

How long is a Vara?

There is no single universal length. You must consider the specific regional and historical context. Key values include:

  • Castilian Vara (Spain): ~83.59 cm / ~32.91 inches
  • Portuguese Vara: ~110 cm / ~43.3 inches
  • Mexican Vara: ~83.8 cm / ~33.0 inches
  • Texas Vara (USA): Exactly 33 1/3 inches / ~84.67 cm

How does the Vara compare to a Yard or Meter?

  • Most common Varas (Castilian, Mexican, Texas) are shorter than both a meter (100 cm) and an English yard (91.44 cm / 36 inches).
    • 1 Meter ≈ 1.18 to 1.20 Varas (Castilian/Texas)
    • 1 Yard ≈ 1.09 to 1.10 Varas (Castilian/Texas)
  • The Portuguese Vara (~1.1 m) is longer than both a meter and a yard.
    • 1 Meter ≈ 0.91 Portuguese Varas
    • 1 Yard ≈ 0.83 Portuguese Varas

Is the Vara an SI unit?

No, the Vara is not an SI unit. It is a traditional unit belonging to the historical Spanish and Portuguese systems of measurement. The SI base unit for length is the meter (m).

Conversion Table: Wa to Vara

Wa (wa)Vara (vara)
12.386
511.93
1023.861
2559.652
50119.303
100238.607
5001,193.033
1,0002,386.065

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