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Weird Units Converter

A fun and educational tool to convert between unconventional and historical units of measurement, like furlongs per fortnight.

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A Journey Through Weird & Wonderful Units of Measurement

The Weird Units Converter is a fun and educational tool that lets you explore and convert between a variety of historical, obscure, and whimsical units of measurement. It’s a tribute to the creative and sometimes baffling ways humans have measured the world around them throughout history.

What Makes a Unit "Weird"?

This calculator includes units that are no longer in common use, are specific to a particular niche, or were created for literary or humorous purposes. They provide a fascinating glimpse into different cultures and eras.

A Selection of Our Favorite Weird Units:

  • Furlong per Fortnight: A humorous unit of velocity. A furlong is 1/8th of a mile, and a fortnight is 14 days. It translates to a very slow speed, roughly 1 centimeter per minute.
  • Donkeypower: An amusing take on "horsepower," often defined as about one-third of a horsepower (approximately 250 watts).
  • Smoot: A unit of length created at MIT, defined as the height of a student named Oliver R. Smoot in 1958 (5 feet 7 inches). The Harvard Bridge in Boston is famously measured in Smoots.
  • Attoparsec: A unit used by computer scientists. It's about 3.1 centimeters, representing the distance light travels in one nanosecond. The name is a humorous portmanteau of "atto-" (a very small prefix) and "parsec" (a very large astronomical unit).
  • Barn: A unit of area used in nuclear physics to quantify the cross-sectional area of a target for particle collisions. One barn is 10⁻²⁸ square meters. It was named "barn" because it was considered a "big" target for particles.

How the Calculator Works

Our calculator works by first converting the value of any weird unit into a standard SI base unit (like meters, seconds, or watts). Once the value is in a standard format, it can be accurately converted to any other unit, whether weird or conventional.

Practical Example: The Speed of a Tortoise

A common garden tortoise moves at a speed of about 0.17 mph. Let's see what that is in furlongs per fortnight.

  1. Enter "0.17" into the "Miles per hour (mph)" field.
  2. The calculator converts this to its base unit (meters per second).
  3. It then converts the base unit value into all other units, including the weird ones.
  4. The result for "Furlongs per Fortnight" would be approximately 228.

So, you can say a tortoise ambles along at a respectable 228 furlongs per fortnight!

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