How do I convert cm² to acre?

Use the formula shown above or enter a value to see cm² converted to acre instantly.

What is the formula for cm² to acre?

The converter calculates acre by applying the category-specific conversion factor for Area.

When should I use cm² vs acre?

cm² and acre are both part of the Area category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Area Converter & Surface Reference

Convert cm² to acre

Use the live converter below to translate between Square Centimeter (cm²) and Acre (acre). Scroll further for quick examples, formula tips, and related units.

Formula insight: Most unit conversions use a simple multiplication or division by a conversion factor. The calculator shows the exact formula used.

Convert

cm² → acre

Square Centimeter

cm²

Acre

2.47105×10^-8

acre

Rounded result (4 decimals max)

Formula

1 cm² = 2.47105×10^-8 acre

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from acre to cm².

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cm² to acre quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Square Centimeter (cm²)	Acre (acre)
0.25 cm²	6.17763×10^-9 acre
0.5 cm²	1.23553×10^-8 acre
1 cm²	2.47105×10^-8 acre
2 cm²	4.94211×10^-8 acre
5 cm²	0 acre
10 cm²	0 acre
25 cm²	0 acre
100 cm²	0 acre

acre back to cm²

Keep the reciprocal handy when double-checking calculations or undoing a conversion.

Acre (acre)	Square Centimeter (cm²)
0.25 acre	10,117,141.056 cm²
0.5 acre	20,234,282.112 cm²
1 acre	40,468,564.224 cm²
2 acre	80,937,128.448 cm²
5 acre	202,342,821.12 cm²
10 acre	404,685,642.24 cm²
25 acre	1.01171×10^9 cm²
100 acre	4.04686×10^9 cm²