Are to Decare Converter

Area Converter

20 units available

Decimals:

From

To

0.1

1 a = 0.1 daa

Formula:

daa = a × 0.1

With your value: 1 a = 0.1 daa

How big is that?

Everyday references on a logarithmic scale, all expressed in are so you can sanity-check the result.

A4 sheet (1/1.6e+3 your value)0.000625 a

Parking space (1/8.0 your value)0.125 a

Your value1.00 a

Tennis court (2.6× your value)2.61 a

Football pitch (71× your value)71.4 a

Hectare (1.0e+2× your value)100 a

Other Are to Decare conversions

2 a to daa 3 a to daa 4 a to daa 5 a to daa 6 a to daa 7 a to daa 8 a to daa

Are to Decare Conversion Table

Are (a)	Decare (daa)
0.5	0.05
1	0.1
2	0.2
5	0.5
10	1
15	1.5
20	2
25	2.5
50	5
100	10
250	25
500	50
1000	100

Decare to Are Conversion Table

Decare (daa)	Are (a)
0.5	5
1	10
2	20
5	50
10	100
15	150
20	200
25	250
50	500
100	1,000
250	2,500
500	5,000
1000	10,000

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Are (a)

Area

Exact conversion

Derived from the square metre via the length definitions above.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Decare (daa)

Area

Exact conversion

Derived from the square metre via the length definitions above.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Are to Decare

To convert from Are (a) to Decare (daa), multiply the value by 0.1.

Formula: daa = a × 0.1

Reverse: a = daa × 10

Step-by-Step Example

Start with your value in Are. For example: 5 a
Multiply by the conversion factor: 5 x 0.1
The result is: 0.5 daa

About Are

The are (a) is a unit of area. One are equals 100 square metres. UnitConvertLab converts it against every other area unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: area calculations, engineering and science, education.

About Decare

The decare (daa) is a unit of area. One decare equals 1000 square metres. UnitConvertLab converts it against every other area unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: area calculations, engineering and science, education.

Frequently Asked Questions

How many Decare are in 1 Are?

There are exactly 0.1 Decare in 1 Are. This means the conversion factor from Are to Decare is 0.1.

What is the formula to convert Are to Decare?

The formula to convert Are to Decare is: daa = a × 0.1. For example, to convert 10 Are to Decare, you would multiply 10 by 0.1.

What is a Are?