Land Area Converter

Convert between acres, square feet, hectares, square meters, and square miles.

By Konstantin Iakovlev · Updated September 2026 · Source: NIST Handbook 44 (2026), Appendix C — General Tables of Units of Measurement

Square Feet

43,560

Acres

1.00

Square Meters

4,047

All Conversions

Square Feet43,560
Acres1.00
Square Meters4,047
Hectares0.4047
Square Miles0.001563

Size Comparisons

Football Fields0.7576
City Blocks (~2.5 acres)0.4000
Basketball Courts9.27
Tennis Courts15.51

Use the Land Area Converter above to calculate your results. Enter your values and see instant results — all calculations run in your browser.

Disclaimer: This calculator is for informational purposes only. Results are estimates based on the information you provide and the assumptions described on this page.

How It Works

Land measurements rarely stay in one unit, so this converter moves figures freely among acres, square feet, hectares, square meters, and square miles. Getting those conversions right matters for legal filings, construction plans, and agricultural assessments. Clean translations between systems head off the kind of mistakes that grow expensive once a deal or a build is underway.

Every conversion rests on fixed, standard ratios between unit pairs. One acre equals exactly 43,560 square feet, and one hectare equals exactly 10,000 square meters, to take two of the anchor relationships. Because these factors never change, the output stays consistent no matter which unit you start from.

Confirming the starting unit before you convert is the single best way to avoid a wrong result. The conversions themselves are exact, though local regulations and industry conventions may round the final figures to suit their own standards. One pairing trips people up more than most: square yards and square meters look interchangeable but are genuinely different units.

Example: Converting an Agricultural Plot for International Sale

  1. 1 A farmer in Iowa wants to sell a 150-acre plot to an international buyer who prefers hectare measurements.
  2. 2 Enter 150 as the value and choose 'Acres' as the unit. The calculator converts to square feet (150 × 43,560 = 6,534,000) and divides by 107,639 square feet per hectare.
  3. 3 Result: 60.70 hectares. The table also shows 607,029 square meters and 0.2344 square miles.
  4. 4 The buyer can now read the size in their own unit. Prices convert the same way: a price per acre divided by 0.404686 gives the price per hectare, about 2.47 times the per-acre figure.

Source: NIST Handbook 44 (2026), Appendix C — General Tables of Units of Measurement · Last updated: September 2026

Frequently Asked Questions

How many square feet are in an acre?
One acre equals 43,560 square feet. That is roughly the size of a football field without the end zones (which would be 48,000 sq ft). An acre is also about 208.7 feet on each side if square.
How many acres is a hectare?
One hectare equals 2.471 acres, or 10,000 square meters. Conversely, one acre equals 0.4047 hectares. Hectares are the standard land measurement in most countries outside the US.
How do I calculate the area of an irregularly shaped lot?
For irregular lots, break the shape into triangles and rectangles, calculate each area, and sum them. For precise measurement, use a GPS land surveying app or hire a surveyor. County records also list lot size.

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