The square millimeter (mm²) is used for precision measurements in engineering and manufacturing. It's ideal for measuring tiny surfaces like electronic components (a microSD card is about 150 mm²) or paper thickness (standard printer paper is ~62,370 mm² per sheet). This unit is essential in microelectronics and quality control. The square inch (in²) is commonly used in the United States for small surface measurements. A standard post-it note is about 6 in², while a sheet of letter-sized paper is 93.5 in². This unit is prevalent in printing, crafts, and engineering drawings.
To convert between Square Millimeter (mm²) and Square Inch (in²), use the following formulas:
1 Square Millimeter (mm²) = 0.0015500031000062 Square Inch (in²)
1 Square Inch (in²) = 645.16 Square Millimeter (mm²)
10 mm² = 10 * 0.0015500031000062 in² = 0.015500031000062 in²
50 mm² = 50 * 0.0015500031000062 in² = 0.07750015500031 in²
100 mm² = 100 * 0.0015500031000062 in² = 0.15500031000062 in²
500 mm² = 500 * 0.0015500031000062 in² = 0.7750015500031 in²
1000 mm² = 1000 * 0.0015500031000062 in² = 1.5500031000062 in²
| Square Millimeter (mm²) | Square Inch (in²) |
|---|---|
| 1 mm² | 0.0015500031000062 in² |
| 10 mm² | 0.015500031000062 in² |
| 100 mm² | 0.15500031000062 in² |
| 500 mm² | 0.7750015500031 in² |
| 1000 mm² | 1.5500031000062 in² |