Klafter (klafter) - Unit Information & Conversion
What is a Klafter?
Definition
The Klafter is a historical unit of length originating from Central Europe, particularly prominent in German-speaking regions like Austria, Bavaria, Prussia, and Switzerland. It is conceptually similar to the fathom, often defined by the span of a person's outstretched arms.
While its exact length varied significantly by region and time, a widely recognized standard, especially from the Austrian Empire, defines the Klafter as 6 Vienna feet (Wiener Fuß). This equates to approximately:
- 1.8965 meters (m)
- 6.222 feet (ft) (using the Vienna foot of ~0.31608 m)
The Klafter was also used as a unit of area (Quadratklafter or square Klafter) and volume (Kubikklafter or cubic Klafter), especially for measuring firewood (often called a Raummeter or Ster in this context, though volumes could vary). This page focuses on the linear Klafter.
History
The term "Klafter" likely derives from Old High German klāftra, related to the act of embracing or grasping, reflecting its origin as an anthropometric unit based on arm span.
- Regional Variations: Before widespread standardization and metrication, the length of the Klafter differed across various German states and Swiss cantons. For example, the Prussian Klafter was slightly different from the Austrian one.
- Standardization Efforts: Attempts were made to standardize measures, with the Austrian system (based on the Wiener Fuß) becoming influential. The definition of 1 Klafter = 6 Fuß (feet) = 72 Zoll (inches) was common, but the length of the Fuß itself varied.
- Dual Use (Length & Volume): The Klafter was notably used for measuring stacked firewood. A Klafter Holz typically referred to a stack of wood 1 Klafter high, 1 Klafter wide, and a specific log length (often 3 or 4 feet), representing a volume unit.
- Metrication: The Klafter became obsolete following the adoption of the metric system across Central Europe, primarily during the latter half of the 19th century (e.g., Germany 1872, Austria 1876).
Common Uses
Historically, the Klafter served various measurement needs:
- Forestry: Measuring timber lengths and, crucially, the volume of stacked firewood.
- Mining: Measuring the depth of shafts and the length of tunnels.
- Construction: Measuring building dimensions, rope lengths, and materials.
- Surveying: Measuring land distances and areas (Quadratklafter), although units like the Ruthe (rod) were also common for land.
- Nautical: Sometimes used similarly to a fathom for measuring water depth or rope lengths, though less common than the English fathom in maritime contexts.
Today, its use is confined to historical records, architectural studies, forestry history, and understanding old land deeds or documents.
Unit FAQs
How long is a Klafter?
The length varied, but the most common standard, based on the Austrian system, is:
- Exactly 6 Vienna Feet (Wiener Fuß)
- Approximately 1.8965 meters
- Approximately 6.222 feet
Other historical values might range roughly from 1.7 to 1.95 meters depending on the specific regional "foot" standard used.
Is a Klafter the same as a fathom?
Conceptually, they are very similar, both derived from the span of outstretched arms. Numerically, they are close but distinct.
- Klafter (Austrian): ~1.8965 meters / ~6.222 feet
- Fathom (International): Exactly 1.8288 meters / 6 feet
So, the common Austrian Klafter was slightly longer than the standard fathom.
What were the main related units in the Austrian system?
The Klafter was part of a system:
- 1 Klafter = 6 Fuß (Vienna Foot or Wiener Schuh)
- 1 Fuß = 12 Zoll (Vienna Inch or Wiener Zoll)
- 1 Zoll ≈ 2.634 cm / 1.037 inches
- 1 Fuß ≈ 31.608 cm / 12.444 inches / 1.037 feet
Where was the Klafter primarily used?
It was used across Central Europe, notably in:
- Austria-Hungary
- Southern German states (Bavaria, Württemberg)
- Prussia (with a slightly different length)
- Switzerland
- Other parts of the Holy Roman Empire and subsequent German Confederation.
Is the Klafter still used today?
No, the Klafter is obsolete for practical measurements. It was replaced by the meter during metrication in the 19th century. Its relevance is purely historical.
How does a Klafter compare to a meter or foot?
- A Klafter (~1.9 m) is almost twice as long as a meter. (1 Klafter ≈ 1.9 m)
- A Klafter (~6.2 ft) is significantly longer than a standard foot. (1 Klafter ≈ 6.2 ft)
Is the Klafter an SI unit?
No, the Klafter is not an SI unit. It is a traditional unit from historical Central European measurement systems. The SI base unit for length is the meter (m).
Klafter Conversion Formulas
To Meter:
To Kilometer:
To Hectometer:
To Decimeter:
To Centimeter:
To Millimeter:
To Inch:
To Foot:
To Yard:
To Mile:
To Nautical Mile:
To Micrometer:
To Nanometer:
To Light Year:
To Astronomical Unit:
To Parsec:
To Angstrom:
To Point (Typography):
To Mil/Thou:
To Fathom:
To Furlong:
To Link (Gunter's):
To Pace:
To Span:
To Digit:
To Cable Length:
To Ell:
To Finger:
To Roman Mile:
To Stadion:
To Chi (Chinese):
To Shaku (Japanese):
To Li (Chinese):
To Toise:
To Bolt:
To Rope:
To Smoot:
To Sajene:
To Ken:
To Wa:
To Vara:
To Aln:
To Cubit (Royal/Egyptian):
To Versta:
To Arpent:
To Ri (Japanese):
To Yojana:
To Skein:
Convert Klafter
Need to convert Klafter to other length units? Use our conversion tool.
Klafter Quick Info
Related Length Units
- Meterm
- Kilometerkm
- Hectometerhm
- Decimeterdm
- Centimetercm
- Millimetermm
- Inchin
- Footft
- Yardyd
- Milemi
- Nautical MileNM
- Micrometerμm
- Nanometernm
- Light Yearly
- Astronomical UnitAU
- Parsecpc
- AngstromÅ
- Point (Typography)pt
- Mil/Thoumil
- Fathomfath
- Furlongfur
- Link (Gunter's)li
- Pacepace
- Spanspan
- Digitdigit
- Cable Lengthcb
- Ellell
- Fingerfinger
- Roman Milem.p.
- Stadionstadion
- Chi (Chinese)chi
- Shaku (Japanese)shaku
- Li (Chinese)li
- Toisetoise
- Boltbolt
- Roperope
- Smootsmoot
- Sajenesajene
- Kenken
- Wawa
- Varavara
- Alnaln
- Cubit (Royal/Egyptian)cubit
- Verstaversta
- Arpentarpent
- Ri (Japanese)ri
- Yojanayojana
- Skeinskein