Convert Square Nanometers to Rai
Convert Square Nanometers (nm²) to Rai (rai) instantly and accurately.
Conversion Formula
rai = nm² × 6.250000000e-22
About Square Nanometers
A square nanometer (nm²) is an extraordinarily small unit of area - the area of a square with sides just one billionth of a meter. At this scale we measure individual molecules and atomic structures. The cross-section of a DNA double helix is roughly 20 nm², and modern transistor gates in cutting-edge microchips have areas measured in tens of nm². Square nanometers are essential in nanotechnology, semiconductor fabrication, surface chemistry, and scanning-tunnelling microscopy.
About Rai
A rai (ไร่) is the standard Thai unit of land area, defined as exactly 1,600 m² (40 m × 40 m). It is used throughout Thailand for all land measurement - from rice paddies to urban plots and national parks. Thai real estate listings always quote land area in rai, ngan (400 m² = ¼ rai), and talang wah (4 m² = 1 square wah). Thailand's total rice-paddy area is reported in millions of rai. One rai equals approximately 0.395 acres or 0.16 hectares.
Quick Reference Table
| Square Nanometers (nm²) | Rai (rai) |
|---|---|
| 1 nm² | 6.25 × 10-22 rai |
| 2 nm² | 1.25 × 10-21 rai |
| 5 nm² | 3.125 × 10-21 rai |
| 10 nm² | 6.25 × 10-21 rai |
| 25 nm² | 1.563 × 10-20 rai |
| 50 nm² | 3.125 × 10-20 rai |
| 100 nm² | 6.25 × 10-20 rai |