Vara to Span Conversion Calculator: Free Online Tool
Convert varas to spans with our free online length converter.
Vara to Span Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Vara).
- The converted value in Span will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Length category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Vara to Span
Converting Vara to Span involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Vara = 3.666667 spansExample Calculation:
Convert 10 varas: 10 × 3.666667 = 36.66667 spans
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 Vara and a Span?
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.
The Span is an ancient unit of length based on the distance across an outstretched human hand, measured from the tip of the thumb to the tip of the little finger (or sometimes the index finger). As an anthropomorphic unit, its length was inherently variable, depending on the size of an individual's hand.
Historically, it was often defined in relation to other body-based units:
- Typically considered half a cubit.
- Often equated to 3 palms (where a palm is the width of the hand across the base of the fingers).
- Sometimes defined as 12 digits (fingerbreadths).
A common, though unofficial, modern estimate for a span is around 9 inches or approximately 22.86 centimeters (cm).
Note: The Vara is part of the imperial/US customary system, primarily used in the US, UK, and Canada for everyday measurements. The Span belongs to the imperial/US customary system.
History of the Vara and Span
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.
The span is one of the oldest informal units of measurement, used by numerous ancient civilizations, including the Egyptians, Israelites, Greeks, and Romans, due to the convenience of using the human hand.
- Ancient Egypt & Mesopotamia: The span was used alongside the cubit and digit. The relationship (often 1 span = 1/2 cubit) was fundamental in their systems.
- Biblical References: The span is mentioned in the Bible (e.g., Exodus 28:16 describing the High Priest's breastplate, Goliath's height in some interpretations).
- Ancient Greece & Rome: Used as a practical subdivision of the cubit.
- Medieval Europe: Continued in informal use and sometimes appeared in texts defining lengths. In England, it was often standardized (unofficially) as 9 inches.
Like other anthropomorphic units, the span fell out of official use with the development and adoption of more standardized systems like the Imperial (inches, feet) and Metric (meters) systems, which provided necessary precision for trade, science, and industry.
Common Uses for varas and spans
Explore the typical applications for both Vara (imperial/US) and Span (imperial/US) to understand their common contexts.
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.
Common Uses for spans
The span is now obsolete for precise or official measurements but is still encountered or used in specific contexts:
- Informal Estimation: Used for quick, rough measurements of moderate lengths where precision is not critical (e.g., gardening, crafts, estimating object sizes).
- Historical Texts: Found in ancient and medieval documents, requiring understanding for interpretation.
- Anthropology & Archaeology: Relevant when studying historical measurement systems or interpreting dimensions from ancient sites.
- Figurative Language: Can be used metaphorically to denote a small distance or extent ("life span").
- Understanding Historical Units: Key to grasping the relationship between units like the digit, palm, and cubit in ancient systems.
Frequently Asked Questions
Questions 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).
About Span (span)
How long is a span?
There is no single, universally fixed length for a span because it's based on human hand size. However:
- A common historical and modern estimate is 9 inches (in).
- This is approximately 22.86 centimeters (cm) or 0.2286 meters (m).
- Historically, it was often defined as half a cubit, which varied (e.g., a common cubit of ~18 inches would yield a 9-inch span).
What is the relationship between a span and a cubit?
In many historical systems, a span was considered half (1/2) of a cubit. Since cubits themselves varied (e.g., common cubit vs. royal cubit), the exact length of the span derived this way also varied.
What is the relationship between a span and a palm or digit?
Common relationships, though varying by system, were:
- 1 span ≈ 3 palms (where a palm is the width of the hand).
- 1 span ≈ 12 digits (where a digit is the width of a finger).
Is the span an SI unit?
No, the span is not an SI unit. It is an ancient, non-standardized, anthropomorphic unit. The SI base unit for length is the meter (m).
Is the span still used today?
The span is not used for any official, scientific, or commercial measurements. Its use is limited to informal estimations, historical context, and figurative language. People might still use their own hand span for a quick size check.
Where does the name 'span' come from?
The word "span" comes from Old English spann, related to the verb spannan, meaning "to stretch, extend, or connect". This directly reflects the action of stretching the hand to measure the unit.
Conversion Table: Vara to Span
| Vara (vara) | Span (span) |
|---|---|
| 1 | 3.667 |
| 5 | 18.333 |
| 10 | 36.667 |
| 25 | 91.667 |
| 50 | 183.333 |
| 100 | 366.667 |
| 500 | 1,833.333 |
| 1,000 | 3,666.667 |
All Length Conversions
Other Units from Length
- Meter (m)
- Kilometer (km)
- Hectometer (hm)
- Decimeter (dm)
- Centimeter (cm)
- Millimeter (mm)
- Inch (in)
- Foot (ft)
- Yard (yd)
- Mile (mi)
- Nautical Mile (NM)
- Micrometer (μm)
- Nanometer (nm)
- Light Year (ly)
- Astronomical Unit (AU)
- Parsec (pc)
- Angstrom (Å)
- Point (Typography) (pt)
- Mil/Thou (mil)
- Fathom (fath)
- Furlong (fur)
- Link (Gunter's) (li)
- Pace (pace)
- Digit (digit)
- Cable Length (cb)
- Ell (ell)
- Finger (finger)
- Roman Mile (m.p.)
- Stadion (stadion)
- Chi (Chinese) (chi)
- Shaku (Japanese) (shaku)
- Li (Chinese) (li)
- Toise (toise)
- Bolt (bolt)
- Rope (rope)
- Smoot (smoot)
- Sajene (sajene)
- Ken (ken)
- Wa (wa)
- Aln (aln)
- Cubit (Royal/Egyptian) (cubit)
- Versta (versta)
- Arpent (arpent)
- Ri (Japanese) (ri)
- Klafter (klafter)
- Yojana (yojana)
- Skein (skein)