Skabelon {{convert}}omregner fra en måleenhed til en anden, og viser resultatet efter et valgt format. For eksempel:
{{convert|2|km|mi}} → 2 kilometer (1,2 mi)
{{convert|7|mi|km}} → 7 miles (11 km)
Tal kan afrundes, enheder kan forkortes:
{{convert|2|km|mi|2|abbr=on}} → 2 km (1,24 mi)
{{convert|7|mi|km|2|abbr=on}} → 7 mi (11,27 km)
Et interval kan angives med |to|... eller |-|...:
{{convert|2|to|5|km|mi}} → 2 til 5 kilometer (1,2 til 3,1 mi)
{{convert|2|-|5|km|mi}} → 2–5 kilometer (1,2–3,1 mi)
Kombineret eksempel:
{{convert|2|-|5|km|mi|2|abbr=on}} → 2–5 km (1,24–3,11 mi)
{{convert|2|and|5|km|mi|sigfig=3|abbr=off}} → 2 og 5 kilometer (1,24 og 3,11 miles)
Vær opmærksom på at komma bruges til decimaltal. Hvis tal angives med punktum i stedet, vises en asterisk (*) eller fejlmeddelelse til slut og artiklen kommer i Kategori:Sider med fejl eller advarsel ved enhedskonvertering. Undgå derfor også punktum som tusindadskiller, da det ikke altid kan fortolkes korrekt.
Afrunding: 100 ft er 30 m eller 30,5 m eller 30,48 m?
Per definition er 100 ft lig 30,48 m. I praksis afrundes resultatet sædvanligvis.
Default rounding
By {{Convert}} default, the conversion result will be rounded either to precision comparable to that of the input value (the number of digits after the decimal point—or the negative of the number of non-significant zeroes before the point—is increased by one if the conversion is a multiplication by a number between 0.02 and 0.2, remains the same if the factor is between 0.2 and 2, is decreased by 1 if it is between 2 and 20, and so on) or to two significant digits, whichever is more precise. An exception to this is rounding temperatures (see below).
Examples of rounding
Input
Displays as
Note
{{convert|123|ft|m|-1}}
123 feet (40 m)
{{convert|123|ft|m}}
123 feet (37 m)
same output as with 0 (below)
{{convert|123|ft|m|0}}
123 feet (37 m)
{{convert|123|ft|m|1}}
123 feet (37,5 m)
{{convert|123|ft|m|2}}
123 feet (37,49 m)
exact value is 37.4904 m
{{convert|500|ft|m|-1}}
500 feet (150 m)
{{convert|500|ft|m}}
500 feet (150 m)
same output as with −1 (above), because the conversion factor is between 0.2 and 2 (hence, it should produce same double-zero precision (−2) as in the input value), but the conversion must produce two significant digits at a minimum (hence, a higher single-zero precision (−1) is used)
{{convert|500|ft|m|0}}
500 feet (152 m)
{{convert|500|ft|m|1}}
500 feet (152,4 m)
{{convert|500|ft|m|2}}
500 feet (152,40 m)
exact value is 152.4 m
{{convert|500|ft|cm|-3}}
500 feet (15.000 cm)
{{convert|500|ft|cm}}
500 feet (15.000 cm)
same output as with −3 (above), because the conversion factor is between 20 and 200 (hence, it should decrease input value's double-zero precision (−2) by 2), but the conversion must produce two significant digits at a minimum (hence, a higher triple-zero precision (−3) is used)
{{convert|500|ft|cm|0}}
500 feet (15.240 cm)
Convert supports four types of rounding:
Round to a given precision: use a precision number
Specify the desired precision with the fourth unnamed parameter (or third unnamed parameter if the "convert to" parameter is omitted; or fifth unnamed parameter if a range is specified; or fourth unnamed parameter again if a range is specified and the "convert to" parameter is omitted; needs to be replaced with a "precision" named parameter). The conversion is rounded off to the nearest multiple of 1⁄10 to the power of this number. For instance, if the result is 8621 and the round number is "-2", the result will be 8600. If the result is "234,0283043" and the round number is "0", the result will be 234.
Round to a given number of significant figures: |sigfig=
To specify the output number to be with n significant figures use |sigfig=<number>:
{{convert|1200|ft|m|sigfig=4}} → 1.200 feet (365,8 m)
{{convert|1200|ft|m|sigfig=3}} → 1.200 feet (366 m)
{{convert|1200|ft|m|sigfig=2}} → 1.200 feet (370 m)
{{convert|1200|ft|m|sigfig=1}} → 1.200 feet (400 m)
Default behaviour, for comparison:
{{convert|1200|ft|m}} → 1.200 feet (370 m)
Setting |sigfig= to a value less than 1 is meaningless:
In temperatures, the conversion will be rounded either to the precision comparable to that of the input value or to that which would give three significant figures when expressed in kelvins, whichever is more precise.
{{convert|10000|C|F K}} → 10.000 °C (18.000 °F; 10.300 K)
{{convert|10000,1|C|F K}} → 10.000,1 °C (18.032,2 °F; 10.273,2 K)
{{convert|-272|C|F K}} → −272 °C (−457,60 °F; 1,15 K)
{{convert|-272|C}} → −272 °C (−457,60 °F)
{{convert|100|C|F K}} → 100 °C (212 °F; 373 K)
{{convert|0|C|F K}} → 0 °C (32 °F; 273 K)
The precision of the input number in example (1) is one digit, but the precision of its Kelvins expression is three, so the precision of the Fahrenheit conversion is made three (made 180...) . (1) and (2) seem to belie the fact that a 0,1 degrees Celsius change is a 0,18 degrees Fahrenheit change, and make the 32 degrees difference shown in (1) begin to seem off somehow.Result (1) seems off until you set the significant figures yourself with |sigfig=:
{{convert|10000|C|sigfig=5}} → 10.000 °C (18.032 °F)
or you set the precision positionally, relative to the decimal point (zero being at the decimal point):
{{convert|10000|C|0}} → 10.000 °C (18.032 °F)
The precision of the input number in example (2) is six, so the precision of the Fahrenheit output is, whereas before, Kelvins had determined it to be three. Examples (3) and (4) show how this can be hidden and generate questions, but it occurs there because the Kelvins conversion generated two fractional parts. (Before it was the input number that generated the fractional part.) In example (3) the three input digits converted into five significant output digits because of the two digits after the decimal point, generated by the Kelvins conversion. This happened again in (5), but in (6) decimal fractions were neither given as input nor induced by the Kelvins conversion.
Rounding input
There is limited support for rounding the displayed input number. The rounding takes place after conversion, so the output is based on the full-precision input. This is useful when the input is produced by {{
expr:}} or otherwise available to a higher precision than is usefully displayed, and it's desirable to avoid double-rounding.
To round the input to a specified number of digits after the decimal point, use one of the parameters:
|adj=ri0
|adj=ri1
|adj=ri2
|adj=ri3
Note that there is no |adj=ri-1N or similar for rounding above the decimal place. Neither is there support for significant figures, multiples of 5, or any other output-rounding feature.
The default precision is computed based on the input, so an explicit output precision must usually be supplied:
{{convert|4,14159|mi|km|adj=ri0}} → 4 miles (6,66524 km) N (precisions are mismatched)
{{convert|4,14159|mi|km|0|adj=ri0}} → 4 miles (7 km) Y
In this case, if the input were rounded before conversion, a different result would be obtained:
{{convert|{{#expr:4.14159 round 0}}|mi|km|0}} → 4 miles (6 km) N (double rounding)
Into multiple units: 10 °C (50 °F; 283 K)
Separate the multiple output units by a space:
{{convert|10|C|F K}} → 10 °C (50 °F; 283 K)
{{convert|5|km|mi nmi}} → 5 kilometer (3,1 mi; 2,7 nmi)
If the output unit names contain spaces, use + as the separator.
um: 12 μm (0,012 mm) (letter "u" can be used for "μ" here)
The prefix can be used in the output unit:
{{convert|12000|mi|Mm|abbr=on}} → 12.000 mi (19 Mm)
{{convert|12|in|μm|abbr=on}} → 12 in (300.000 μm)
As an exception, the non-SI unit "inch" can have the "μ" prefix too)
{{convert|12|μm|μin|abbr=on}} → 12 μm (470 μin)
Scientific notation: 1,23 × 10−14
In scientific notation, a number is written like 1,23×10−14. The plain number has exactly one digit before the decimal point.
With {{convert}}, the input can be in e-notation such as 12,3e4. This value is displayed as a power of ten, and the output is displayed in scientific notation, except that an output value satisfying 0,01 <= v < 1000 is shown as a normal number. In addition, if the output value is 1000 and sigfig=4 is used, the value is displayed as a normal number.
Note that the following cases are not interpreted as mixed numbers:
{{convert|2-1⁄2|in|mm|1}} → 2–1⁄2 inch (50,8–12,7 mm). This is interpreted as a range from 2 inches to 1⁄2 inch.
{{convert|-2+1⁄2|in|mm|1}} → [convert: ugyldigt tal]N This is neither a mixed number nor a range, and mathematical expressions requiring calculations are not allowed here.
Output with horizontal fraction bar in: 1/2 inch
Using a double slash (//) returns a horizontal bar fraction:
{{convert|1//2|in|mm|1}} → 1/2 inch (12,7 mm)
{{convert|2+1//2|in|mm|1}} → 21/2 inchs (63,5 mm)
Thousands separator: 1,000 mi or 1000 mi
In input, a comma for thousands separator is accepted but not required; a gap (space) is not accepted. In output, by default, the thousand separator is the comma:
{{convert|1234567|m|ft}} → 1.234.567 meter (4.050.417 ft)
{{convert|1,234,567|m|ft}} → 1.234.567 meter (4.050.417 ft)*
A {{convert|2|kPa|psi|abbr=~|adj=on}} pressure → A 2-kilopascal [kPa] (0,29 psi) pressure
Table options
For the wikitable structure, there are three options: add a line-break, split the result over columns and make the table sortable.
Enforced line break
|disp=br adds a line-break and omits brackets.
|disp=br() adds a line-break and does add brackets to the converted value. This may be useful in tables:
|disp=br
|disp=br()
100 kilometer 62 miles
100 kilometer (62 miles)
Table columns showing numbers only
Using {convert} in a table cell, with |disp=table splits the result over two columns:
{{convert|10|m|ft|disp=table}} →
style="text-align:right;"|10
|style="text-align:right;"|33
|disp=tablecen does the same, and also centers the text:
{{convert|20|m|ft|disp=tablecen}} →
style="text-align:center;"|20
|style="text-align:center;"|66
The units are added as a column header:
m
ft
|disp=table
10
33
|disp=tablecen
20
66
|disp=<other> (default)
30 meter (98 ft)
Sorting
Use |sortable=on to include a hidden numerical sortkey in the output, suitable for use in a table with sortable columns. Technically, this places a hidden string before the actual displayed values:
Use both |disp=table and |sortable=on together to produce table columns (pipe symbols) for each value in sortable columns:
m
ft
A
153⁄4
52
B
15,5
51
C
16,0
52,5
D
16
52
The generated sortkey is calculated in a consistent way based on both the value and its unit as passed to the convert template. In most cases convert uses the passed value converted to SI base units. It is therefore not necessarily the displayed value or other alternate units and is calculated regardless of output format options. Using different units or different order of units in individual rows should therefore not lead to incorrect sorting, although variations in rounding can give surprising results, since an unrounded number is used for the sortkey.
Units
The conversion factors and physical constants are sourced here.
The table below lists units supported by template {{convert}}. The list is not complete—more complete lists are linked for each dimension. A complete list is at the full list of units.
The {{convert}} template uses unit-codes, which are similar to (but not necessarily exactly the same as) the usual written abbreviation for a given unit. These 'unit-codes' are given in column 3 of the following tables, and are accepted as input by the {{convert}} template as the second and third unnamed parameters. For example, {{convert|100|kg|lb}} produces "100 kilogram (220 lb)" and {{convert|100|lb|kg}} produces "100 pounds (45 kg)"
Some units have alternative unit-codes; these are shown in brackets in column 3, e.g. °F (F): either may be entered for Fahrenheit (but not lower-case f).
The unit-codes should be treated as case-sensitive, especially in cases like {{convert|100|Mm|mm}}, which produces "100 megameter (1,0×1011 mm)".
The output of {{convert}} can display multiple converted units, if further unit-codes are specified after the second unnamed parameter (without the | separator). Typical combination output units are listed below in column 7. For example, {{convert|55|nmi|km mi}} produces "55 sømil (102 km; 63 mi)", and {{convert|1|oz|ozt g gr}} produces "1 ounce (0,91 ozt; 28 g; 440 gr)".
Skabelon:Convert/list of units/mass/short listSkabelon:Convert/list of units/speed/short listSkabelon:Convert/list of units/temperature/short listSkabelon:Convert/list of units/torque/short listSkabelon:Convert/list of units/volume/short listSkabelon:Convert/list of units/extra
'per' units: kg/hl
When using a slash (/), a unit like kg/hl is recognized as kilograms per hectolitre and will be converted with other mass/volume units.
{{convert|1000|kg/hl}} → 1.000 kilogram per hektolitre (100 lb/imp gal)
Units of difference: Expressing a change or difference in temperature
We have already discussed standard temperature conversions (°C, °F, K), as shown in these two examples:
{{convert|10|C}} → 10 °C (50 °F) (standard temperature conversion)
{{convert|10–15|C}} → 10–15 °C (50–59 °F) (standard temperature range conversion)
When expressing a temperature change (e.g., "The temperature increased by 10 °C"), or when comparing temperatures (e.g., "10 to 15 °C warmer"), we cannot use the standard temperature units (|C, |F and |K), which refer to points on the respective scale. Instead, we must use one of the following "units of difference": |C-change, |F-change and |K-change.
Compare the following two examples with the two above:
{{convert|10|C-change}} → 10 °C (18 °F) increase in temperature
{{convert|10–15|C-change}} → 10–15 °C (18–27 °F) warmer than normal
To produce multiple units in the output:
{{convert|10|C-change|F-change K-change}} → 10 °C (18 °F; 10 K) difference
Multiple units: 1 ft 5 in
In input
Base document § Input multiples lists options for multiple unit input (like ft,in). It can catch predefined sets only (units that can be subdivided; e.g., yd into ft):
{{convert|1|yd|2|ft|3|in}} → 1 yard 2 feet 3 inchs (1,60 m)
Join number and unit name using " " instead of a space
Join values
|adj=mid|…
mid
User-specified text after the input unit; sets adj=on (adjective). Expects 1 unnamed parameter.
Word adding, adjective
|adj=on
on
Unit name is adjective (singular and hyphenated)
Grammar, adjective
|adj=pre|…
pre
User-specified text before input unit. Expects 1 unnamed parameter.
Word adding
|adj=ri0
ri0
Round input with precision 0
Rounding and significant figures
|adj=ri1
ri1
Round input with precision 1
Rounding and significant figures
|adj=ri2
ri2
Round input with precision 2
Rounding and significant figures
|adj=ri3
ri3
Round input with precision 3
Rounding and significant figures
|disp=b
b
Join input and output using " (...)" (default)
Join values
|disp=sqbr
sqbr
Join input and output using " [...]"
Join values
|disp=br
br
Join input and output using "<br/>"
Join values
|disp=comma
comma
Join input and output using ", "
Join values
|disp=or
or
Join input and output using " or "
Join values
|disp=number
number
Display output number only
Parts only
|disp=output number only
output number only
|disp=out
out
Display only output number and name/symbol
Parts only
|disp=output only
output only
|disp=preunit|…[|…]
preunit
Text to be inserted after value and before units, for both input and output, with optionally different text for output. Expects 1 or 2 unnamed parameters.
Word adding
|disp=table
table
Output is suitable for a table cell with align="right"
Table columns
|disp=tablecen
tablecen
Output is suitable for a table cell with align="center"
Table columns
|disp=unit
unit
Display input name/symbol only (not input number, not output)
Parts only
|disp=unit2
unit2
Display output name/symbol only (not input; not output number)
Parts only
|disp=x|...
x
Join input and output using user-specified text
Word adding
|comma=5
05
Only use comma for thousands separator if 5 or more digits
Number format
|comma=gaps
gaps
Use gaps (space), not comma, for thousands separator
Number format
|comma=gaps5
gaps5
Use gaps (space), but only if 5 or more digits
Number format
|comma=off
off
No thousands separator
Number format
|frac=N
N
Show imperial number in fractions, denominator=N
Number format, fraction
|lk=in
in
Link left-hand side unit name or symbol
Unit link
|lk=on
on
Link all unit names or symbols (but not twice for the same unit)
Unit link
|lk=out
out
Link right-hand side unit name or symbol
Unit link
|order=flip
flip
Inverts order of input, output measurements (conversion first)
Order
|round=5
05
Rounds calculation to the nearest multiple of 5
Rounding and significant figures
|round=25
25
Rounds calculation to the nearest multiple of 25
Rounding and significant figures
|round=each
each
In a range, each number is rounded by the default rounding
Rounding and significant figures
|sigfig=N
N
Round output number to N significant figures (N is a positive integer)
Rounding and significant figures
|sortable=in
in
Output numeric hidden sort field for use in a sortable table (based on input)
Table sort
|sortable=on
on
|sortable=out
out
Output numeric hidden sort field for use in a sortable table (based on output)
Table sort
|sp=us
us
Use U.S. spelling (like "meter" instead of default "metre")
Spelling U.S. names
|spell=in
in
Spell input number in words
Spelling numbers
|spell=In
In
Spell input number in words with first letter uppercase
Spelling numbers
|spell=on
on
Spell input and output numbers in words
Spelling numbers
|spell=On
On
Spell input and output numbers in words with first letter uppercase
Spelling numbers
|$=€
$
Replace $-sign with a currency sign, for example in $/acre(no currency conversion happens)
Cost per unit
|debug=yes
yes
Debugging only. In a sortable table: show the normally hidden sort key
Table sort
|abbr=comma
comma
Deprecated. Use |comma=off
Number format
|abbr=mos
mos
Deprecated. Use |x|or|by|
Range format
|adj=1
01
Deprecated. Do not use. No need to deviate from MOS regarding plurals
Plural or singular
|adj=flip
flip
Deprecated. Use |order=flip
Order
|adj=nocomma
nocomma
Deprecated. Use |comma=off
Number format
|disp=2
02
Deprecated. Use |disp=output only
Parts only
|disp=5
05
Deprecated. Use |round=5
Rounding and significant figures
|disp=flip
flip
Deprecated. Use |order=flip
Order
|disp=flip5
flip5
Deprecated. Use |order=flip |round=5
Order, rounding
|disp=nocomma
nocomma
Deprecated. Use |comma=off
Number format
|disp=u2
u2
Deprecated. Use |disp=unit2
Parts only
|near=5
05
Deprecated. Use |round=5
Rounding and significant figures
TemplateData
Dette er denne skabelons TemplateData-dokumentation, som bruges af VisualEditor og andre værktøjer.
Denne skabelon foretrækker inline-formatering af parametre.
Parameter
Beskrivelse
Type
Status
Value
1
The value to convert.
Tal
påkrævet
From unit
2
The unit for the provided value.
Eksempel
km
Linje
påkrævet
To units
3
The units to convert into. Separate units by a space for multiple outputs. In an output unit, use + for a multiplication space.
Eksempel
mi nmi
Streng
foreslået
Precision or suffix
4
Significant digits after decimal dot or, if negative, exponent of ten.
Tal
valgfri
Link units
lk
Indication of what units to apply wikilinks to. Use “on” for all, “in” for the input unit, “out” for the output units, or “off” for none of the units.
Standardværdi
off
Eksempel
on
Streng
valgfri
Abbreviation
abbr
Display for the units: “on” to display all units using their unit symbols, “off” to display all units in full words, “in” to display the unit symbol for the input unit, “out” to display the unit symbols for the output units, “unit” to display unit symbols for both input and output units when using scientific notation, “values” for no units at all (neither unit symbols nor full words of units).
Standardværdi
out
Eksempel
on, unit, in, out, off
Streng
foreslået
Spelling
sp
Spelling of units. Use “us” to display unit names using U.S. spelling.
Eksempel
us
Streng
valgfri
Adjective
adj
Whether to use adjectival form. Use “on” for singular unit name appended by a hyphen, “mid” to put conversion at end, or “off” (default) for no adjectival form.
Standardværdi
off
Eksempel
on
Boolesk
valgfri
Conversion
disp
Display conversion result: “or”: after ‘or’, “x”: with custom prefix and suffix, “b”: in parentheses, “table”/“tablecen”, “output only”: alone, “output number only”: alone and without unit, “unit”: not at all but input unit; if the value is a number it is used as precision.
Eksempel
b
Streng
frarådes
Ordering
order
“flip” returns converted value first, input value second.
Eksempel
flip
Streng
valgfri
Significant figures
sigfig
Indicates the number of significant figures to be used in rounding.
Tal
valgfri
Rounding output
round
The type of rounding. “5” rounds the output number to nearest multiple of 5, “25” to nearest multiple of 25, “each” rounds each number in a range.
Tal
valgfri
Thousands separator
comma
Sets or suppresses the use of thousands separators in the numbers. “off”: no separator; “gaps”: use space instead of comma as thousands separator; “5” and “gaps5”: only add thousands separator when the integral part of the number uses 5 positions or more (10,000 or more; if using comma as thousands separator, 1234 would produce '1234', 12345 would produce '12,345').
Standardværdi
on
Eksempel
off
Streng
valgfri
Sort key
sortable
“on” generates a hidden sort key
Eksempel
on
Streng
valgfri
spell numbers?
spell
If used, spells input or input and output numbers in words, optionally capitalizing the first
Eksempel
'in', 'In', 'on', or 'On'
Streng
valgfri
singular
sing
If 'yes', uses singular form of units (deprecated)