Square Inch (in²)
Convert Square Inch to Other Units
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About the Square Inch
Unit Details
Quick Conversions
Reference Chart
Square Inch Reference Chart - Area Conversions
Interactive conversion chart showing area unit relationships. Compare 8 common units with precise calculations.
| Unit | Symbol | Equivalent to 1 ac, A |
|---|---|---|
| AcreBase Unit | ac, A | 1 |
| Are | a | 0.024711 |
| Arpent | arp | 0.998623 |
| Barn | b | 2.471E-32 |
| Circular Inch | circ in | 1.252E-7 |
| Circular Mil | cmil | 1.252E-13 |
| Cuerda | cda | 0.971222 |
| Hectare | ha | 2.471054 |
Quick Reference
About Area
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Conversion Accuracy
All conversions use official conversion factors and are calculated with maximum precision to ensure professional-grade accuracy.
Comparison Table
Square Inch Comparison Table
Compare Square Inch values with 6 other area units. Quick reference for common conversion values.
| Square Inch (in²) | Acre (ac, A) | Are (a) | Arpent (arp) | Barn (b) | Circular Inch (circ in) | Circular Mil (cmil) |
|---|---|---|---|---|---|---|
| 1 | 1.594E-7 | 6.452E-6 | 1.596E-7 | 6.452E24 | 1.27324 | 1.273E6 |
| 5 | 7.971E-7 | 3.226E-5 | 7.982E-7 | 3.226E25 | 6.3662 | 6.366E6 |
| 10 | 1.594E-6 | 6.452E-5 | 1.596E-6 | 6.452E25 | 12.732399 | 1.273E7 |
| 25 | 3.986E-6 | 1.613E-4 | 3.991E-6 | 1.613E26 | 31.830998 | 3.183E7 |
| 50 | 7.971E-6 | 3.226E-4 | 7.982E-6 | 3.226E26 | 63.661997 | 6.366E7 |
| 100 | 1.594E-5 | 6.452E-4 | 1.596E-5 | 6.452E26 | 127.323994 | 1.273E8 |
How to Use This Table
Find the value in Square Inch in the first column, then read across to see the equivalent values in other area units.
Precision Note
All conversions are calculated using precise conversion factors with locale-appropriate number formatting for optimal readability.
About the Square Inch
The Square Inch (in²) is a unit of area measurement. Use our converter above to convert Square Inch to any other area unit instantly