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area Quantity

  

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Name:

acre
(convert acre to new units)

Abbreviation:

ac

Another Name:

international-acre

Belongs to:

acre Group

Metric (SI) Equivalents:

0.40468564224 hectares
4046.8564224 meters^2

Metric (SI) Dimensions:

length^2

Description in Terms of
Other Units and Constants:

4840 yards^2

Note:

The metric (SI) equivalents above were calculated from exact values using double-precision arithmetic.

  

Name:

acre-US-survey
(convert acre-US-survey to new units)

Abbreviation:

ac-US-survey

Another Name:

survey-acre

Belongs to:

acre Group

Metric (SI) Equivalents:

0.40468726099 hectares
4046.8726099 meters^2

Metric (SI) Dimensions:

length^2

Description in Terms of
Other Units and Constants:

4840 yards-US-survey^2

Notes:

(1) The "US-survey" suffix indicates that this unit is used in the United States for some survey measurements.

(2) The metric (SI) equivalents above were calculated from exact values using double-precision arithmetic.

  

Name:

are
(convert are to new units)

Abbreviation:

a

Metric (SI) Equivalent:

100 meters^2

Metric (SI) Dimensions:

length^2

Note:

The metric (SI) equivalent above is exact.

  

Name:

arpent-area
(convert arpent-area to new units)

Metric (SI) Equivalents:

0.34188938592 hectares
3418.8938592 meters^2

Metric (SI) Dimensions:

length^2

Description in Terms of
Other Units and Constants:

arpent-length^2

Notes:

(1) Quebec survey unit

(2) The metric (SI) equivalents above were calculated from exact values using double-precision arithmetic.

  

Name:

barn
(convert barn to new units)

Abbreviation:

b

Metric (SI) Equivalent:

100 femtometers^2

Metric (SI) Dimensions:

length^2

Note:

The metric (SI) equivalent above is exact.

  

Name:

centare
(convert centare to new units)

Abbreviation:

ca

Another Name:

centiare

Metric (SI) Equivalent:

1 meter^2

Metric (SI) Dimensions:

length^2

Note:

The metric (SI) equivalent above is exact.

  

Name:

circular-inch
(convert circular-inch to new units)

Abbreviation:

cin

Another Name:

cir-in

Metric (SI) Equivalent:

5.067074791 centimeters^2

Metric (SI) Dimensions:

length^2

Description in Terms of
Other Units and Constants:

pi * (inch / 2)^2

  

Name:

circular-mil
(convert circular-mil to new units)

Abbreviation:

cmil

Another Name:

cir-mil

Metric (SI) Equivalent:

506.7074791 micrometers^2

Metric (SI) Dimensions:

length^2

Description in Terms of
Other Units and Constants:

pi * (mil-length / 2)^2

  

Name:

hectare
(convert hectare to new units)

Abbreviation:

ha

Another Name:

hectoare

Metric (SI) Equivalent:

hectare is a metric unit
10000 meters^2

Metric (SI) Dimensions:

length^2

Note:

The metric (SI) equivalent above is exact.

  

Name:

perche-area
(convert perche-area to new units)

Metric (SI) Equivalent:

34.188938592 meters^2

Metric (SI) Dimensions:

length^2

Description in Terms of
Other Units and Constants:

perche-length^2

Notes:

(1) Quebec survey unit

(2) The metric (SI) equivalent above was calculated from exact values using double-precision arithmetic.

  

Name:

rood
(convert rood to new units)

Metric (SI) Equivalents:

0.10117141056 hectares
1011.7141056 meters^2

Metric (SI) Dimensions:

length^2

Description in Terms of
Other Units and Constants:

40 rods^2

Note:

The metric (SI) equivalents above were calculated from exact values using double-precision arithmetic.

  

Name:

section
(convert section to new units)

Metric (SI) Equivalent:

2.5899984703 kilometers^2

Metric (SI) Dimensions:

length^2

Description in Terms of
Other Units and Constants:

mile-US-survey^2

Note:

The metric (SI) equivalent above was calculated from exact values using double-precision arithmetic.

  

Name:

shed
(convert shed to new units)

Metric (SI) Equivalent:

1e-52 meters^2

Metric (SI) Dimensions:

length^2

Note:

The metric (SI) equivalent above is exact.

  

Name:

Thomson-cross-section
(convert Thomson-cross-section to new units)

Abbreviation:

sigma-e

Metric (SI) Equivalent:

66.5245873 femtometers^2

Standard Uncertainty:

1.3 attometers^2

Metric (SI) Dimensions:

length^2

Note:

The value for this measured constant was obtained from NIST. See their section on constants, units, and uncertainty for more information.

  

Name:

township
(convert township to new units)

Metric (SI) Equivalent:

93.239944932 kilometers^2

Metric (SI) Dimensions:

length^2

Description in Terms of
Other Units and Constants:

(6 miles-US-survey)^2

Notes:

(1) US unit

(2) The metric (SI) equivalent above was calculated from exact values using double-precision arithmetic.

  

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