Convert Square Centimeters to Rai
Convert Square Centimeters (cm²) to Rai (rai) instantly and accurately.
Conversion Formula
rai = cm² × 6.250000000e-8
About Square Centimeters
A square centimeter (cm²) is a metric unit of area equal to a square with sides of one centimeter (10 mm × 10 mm). It is widely used for measuring moderate-sized surfaces like postage stamps, credit cards, or smartphone screens. A standard credit card has an area of about 46 cm². This unit is common in everyday crafts, school science, and smaller construction projects where precision matters but square meters would be too large.
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 Centimeters (cm²) | Rai (rai) |
|---|---|
| 1 cm² | 6.25 × 10-8 rai |
| 2 cm² | 1.25 × 10-7 rai |
| 5 cm² | 3.125 × 10-7 rai |
| 10 cm² | 6.25 × 10-7 rai |
| 25 cm² | 1.563 × 10-6 rai |
| 50 cm² | 3.125 × 10-6 rai |
| 100 cm² | 6.25 × 10-6 rai |