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Wikitravel:Measurements

798 bytes added, 21:47, 28 February 2013
aou is not logically a sub-section of "Provide conversion"
{{Shortcut|[[unit]]}}We often have to use '''measurements''' in Wikitravel — for the distances between places, for the altitude of mountains, for the temperature of deserts, for the volume of a glass of beer. This style guideline gives some suggestions for explains how to specify and format measurements.
==Use local units of measurement==
When showing a measurement, use the '''local system of units''' for the destination you're describing. This is the system that travellers will see on road signs, local maps, menus, food packages, weather reports, etc.
When showing a measurementFor most of the world, use this is the '''local metric system '''. For the [[United States of unitsAmerica]], it's the '''"US standard"''' for system (miles, gallons, pounds), which is similar to the destination you're describing''Imperial''' system of the [[United Kingdom]]. This is In some cases, the system that travelers will see on road signssystems are mixed — for example, local mapsin the [[United Kingdom]], menusroad distances are measured in miles and beer served by the pint, food packageswhile meat and canned goods, weather reportsfor example, etcare measured in (kilo)grams. Milk is measured in both pints ''and'' litres. We favour accuracy over consistency.
For most of The chief difference between the world, this is the '''metric US standard system'''. For and the [[United States of America]], it's the '''"U.S. standard"''' Imperial system (miles, gallons, pounds), which is similar to in the '''Imperial''' system sizes of the [[United Kingdom]]pint and the gallon. In some cases, the systems The US measures are mixed — for example, in 20% smaller than the [[United Kingdom]]Imperial measures. That means you get more drunk on a British pint, road distances are measured in and you get fewer miles and beer served by to the pint, while meat and canned goods, for example, are measured in (kilo)grams. Milk is measured in both pints ''and'' litres. We favor accuracy over consistency. gallon on American roads!
The chief difference between the U.S. standard system and the Imperial system is in the sizes of the pint and the gallon. The U.S. measures are 20% smaller than the Imperial measures. That means you get more drunk on a British pint, and you get fewer miles to the gallon on American roads! If the measurement spans measurements span multiple countries, use metric.
For articles that don't deal with a particular destination (like travel topics), use metric.
==Provide conversions==
It's easier for travellers to understand measurements if they're converted to their own country's units. For this reason, it's best to provide '''conversions''' for measurements into both metric and imperial, the two systems most widely used in the English-speaking world.
It's easier for travelers to understand measurements if they're converted to their own country's units. For this reason, it's best to provide '''conversions''' for measurements into both metric and imperial, the two systems most widely used in the English-speaking world. If the preferred units are metric, provide imperial measurements in parentheses after. If the preferred units are imperial, provide metric measurements in parentheses. If for some reason the local unit is neither metric nor imperial, provide first metric then imperial measurements separated by a comma in parentheses afterwards.
Don't repeat conversions unnecessarily.
===Accuracy===
There is no need to convert between units to the nth unnecessarily precise decimal placeplaces. If you convert between units only state the conversion to the same number of significant digits as the original measure. If you want to show decimal places or be more accurate than a single unit allows, consider going down to a smaller unit. Remember, these measurements are going to be used by travellers, not scientists. To indicate ''approximately'', use the un-italicized abbreviation "c. " (followed by a space) rather than ''circa'', ''ca.'', or ''approx.'' ==Avoid orphaned units=={{Shortcut|[[aou]]}}Except for measurements of temperature, we have a mild preference for separating the number from its associated unit by a single space but: * Don't go wild copy editing different formatting (unless you're seriously underemployed)* To avoid the unit of measurement that "belongs" to a measurement being "orphaned" from its associated unit when it wraps to a following line, separate the pair with a non breaking space character "<code><nowiki>&amp;nbsp;</nowiki></code>" rather than a simple space. eg:"<code><nowiki>4500&amp;nbsp;km</nowiki></code>" will display 4500&nbsp;km
==Examples==
 
The following are some examples of good practice for measurements.
* It's 2800 &nbsp;mi (4500 &nbsp;km) from [[Los Angeles]] to [[New York City]].* It's 815 &nbsp;km (506 &nbsp;mi) from [[Paris]] to [[Marseille]].* It's 305&nbsp;mi(490 &nbsp;km (305 mi) from [[San Antonio]] to [[Monterrey]].* Pikes Peak is 14,110 &nbsp;ft (4301 &nbsp;m) high.* [[Mount Fuji]] is 3776 meters &nbsp;m (12,388 &nbsp;ft) high.
* Temperatures in [[Death Valley]] routinely hit 110°F (43°C).
* In winter, [[Iqaluit]] gets down to -50°C (-58°F).
* Just 2 miles (3 km) down the road in [[Glasgow]] you can get very good pints of beer.
* Just 3 km (2 mi) down the road in [[Hamburg]] you can get very good half-liters litres of beer.
* 5 km (3 mi) to the north is a national park. 5 km to the south is a lake.
==Length Format==Always abbreviate units. Do not put periods (full stops) after units. Never use an "s" after a unit abbreviation to make it plural.
The following details how lengths should be displayed:*kilometre = km*metre = m*centimetre = cm*millimetre = mm
Always abbreviate units. Do not put periods (full stops) after units. *kilometer = km*meter = m*centimeter = cm*millimeter = mm Note: Never capitalize capitalise the first letter.
*mile = mi
Note: Never use ' or " to signify feet or inches.
 
Note: Never use an ''s'' after an abbreviation to make it plural.
==Area==
Always abbreviate units. Do not put periods (full stops) after units. Never use an "s" after a unit abbreviation to make it plural.
The following is how areas should be displayed: Always abbreviate units. Do not put periods (full stops) after units. *square millimeter millimetre = mm²*square centimeter centimetre = cm²
*square meter = m²
*square kilometer kilometre = km²
*hectare = ha
Never capitalize capitalise the first letter.
*square inch = in²
*acre = acre
Note: ==Duration==Always abbreviate units. Do not put periods (full stops) after units. Never use ''an "s'' " after an a unit abbreviation to make it plural.Never capitalize the first letter. * year or years = yr* week or weeks = wk* hour or hours = hr* minute or minutes = min
==Weight/Mass==
Always abbreviate units. Do not put periods (full stops) after units. Never use an "s" after a unit abbreviation to make it plural.
The following is how weights should be displayed: Always abbreviate units. Do not put periods (full stops) after units. *metric ton tonne = t
*kilogram = kg
*gram = g
*ton = ton
*hundredweight = cwt
*pound = lb or pound
*ounce = oz
 
Note: Never use an ''s'' after an abbreviation to make it plural.
==Volume==
 The following is how volume should be displayed: Always abbreviate units. Do not put periods (full stops) after units. Never use an "s" after a unit abbreviation to make it plural.
===Dry Volume===
*cubic metre = m³
*cubic centimetre = cm³
*cubic millimetre = mm³
*cubic meter = m³ or cubic meter*cubic centimeter = cm³ or cubic centimeter*cubic millimeter = mm³ or cubic millimeter Note: Never capitalize capitalise the first letter.
*pint = pt
*cubic feet = ft³ or cu ft
*cubic yard = yd³ or cu yd
 
Note: Never use an ''s'' after an abbreviation to make it plural.
===Fluid Volume===
 The following is how fluid volume should be displayed: Always abbreviate units. Do not put periods (full stops) after units. Never use an "s" after a unit abbreviation to make it plural.
*liter = L
*milliliter = mL
Note: ('''L ''' is always capitalized when used as an abbreviation for literlitre to avoid confusion with the numeral one.)
*gill = gi
*quart = qt
*gallon = gal
 
Note: Never use an "s" after an abbreviation to make it plural.
==Temperature==
 
The following is how temperatures should be displayed:
 
*Celsius = degrees Celsius or °C
*Fahrenheit = degrees Fahrenheit or °F
Note: When referring to places inside the United States, show temperatures in Fahrenheit first and Celsius in parentheses. Anywhere else, use Celsius first with Fahrenheit in parentheses.
Note: Once you choose a temperature format, use that format throughout the page. Do not switch back and forth.
[[it:Wikitravel:Misure]]
[[ja:Wikitravel:単位について]]
[[pt:Wikitravel:Medições]]
[[nl:Wikitravel:Maten]]
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