In 1 square inches there are 0.0000645160 deciares. Meanwhile in 1 deciares there are 15,500.031 square inches. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Deciares to Square inches calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert square inches (in²) to deciares (daa), you’re converting an area from U.S. customary units to a metric land-area unit.
Key facts
Conversion formula (square inches to deciares)
Why that factor works
Quick example
A deciare (daa) is a metric unit of area. It equals 10 square meters. It’s often used for small land areas where hectares feel too large.
1 deciare equals 15,500.031 square inches.
(That comes from 1 daa = 10 m² and 1 m² = 1,550.0031 in².)
Use this formula to convert square inches to deciares:
deciares = square inches ÷ 15,500.031
This works for any value, from tiny areas to large plots.
To convert the other way, multiply:
square inches = deciares × 15,500.031
This is helpful when you start with metric land area and need inches-based units.
1 square inch equals 0.000064516 daa (about 6.4516 × 10⁻5 daa).
Square inches are very small, so the deciare value will look tiny.
100 square inches equals:
100 ÷ 15,500.031 = 0.0064516 daa (approx.)
That’s a small fraction of a deciare.
1,000 square inches equals:
1,000 ÷ 15,500.031 = 0.064516 daa (approx.)
It’s still under one-tenth of a deciare.
A deciare is 10 square meters, which is a lot bigger than a square inch. Since inches are much smaller than meters, it takes many square inches to match one deciare.
No. An are (a) equals 100 m². A deciare (daa) equals 10 m².
So 1 are = 10 deciares.
A deciare is 10 m², which is about 107.639 square feet. This can help you picture the size if you think in feet rather than inches.
This conversion helps when you measure small surfaces in square inches but need a land-style metric unit. It can also help when comparing plans, garden layouts, or material areas listed in different units.
For small areas, use more decimals because the deciare value is tiny. For larger areas, fewer decimals often work well. In many cases, 4 to 6 decimal places gives a clear result without losing detail.
The Calculate Box tool to convert square inches to deciares uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a square inches value in the box and have it instantly converted to deciares.