Area Unit Converter
Square metres, square feet, hectares, rai, ngan, square wah
Verified against sourcesLast verified 25 September 2026
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Result
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Tested examples
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Formula
- Result = amount × (m² per source unit) ÷ (m² per target unit)
- 1 ft² = 0.09290304 m² (exact)
- 1 rai = 1,600 m², 1 ngan = 400 m², 1 sq wah = 4 m²
Assumptions
- International foot (0.3048 m), not the US survey foot
- Shown to 4 decimal places; the exact value is in the steps
Sources
NIST
SP 811 Appendix B.8 — Factors for Units Listed Alphabeticallyaccessed 25 September 2026
พระราชบัญญัติมาตราชั่งตวงวัด พ.ศ. 2542
บัญชีท้ายพระราชบัญญัติ ข.(2) หน่วยของพื้นที่accessed 25 September 2026
Internal reference: reference/07_area_conversion.md
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