# Area Converter

Free area converter. Convert between square millimeters, centimeters, meters, kilometers, inches, feet, yards, acres, and hectares with exact conversion.

## What this calculates

Convert between metric and imperial area units instantly. Supports square millimeters, centimeters, meters, kilometers, inches, feet, yards, acres, and hectares with exact conversion factors.

## Inputs

- **Value** — min 0
- **From** — options: Square Millimeters (mm²), Square Centimeters (cm²), Square Meters (m²), Square Kilometers (km²), Square Inches (in²), Square Feet (ft²), Square Yards (yd²), Acres, Hectares (ha)
- **To** — options: Square Millimeters (mm²), Square Centimeters (cm²), Square Meters (m²), Square Kilometers (km²), Square Inches (in²), Square Feet (ft²), Square Yards (yd²), Acres, Hectares (ha)

## Outputs

- **Result** — The converted area value.
- **Conversion** — formatted as text — Step-by-step conversion explanation.

## Details

Area conversion is essential in real estate, construction, land surveying, agriculture, and science. Area units are the squares of their corresponding length units, so conversion factors are the squares of length conversion factors.

Key Conversion Factors

- 1 square foot = 0.09290304 m² (exact, 0.3048²)

- 1 square yard = 0.83612736 m² (exact, 0.9144²)

- 1 acre = 43,560 square feet = 4,046.8564224 m² (exact)

- 1 hectare = 10,000 m² = 2.47105 acres

- 1 square kilometer = 100 hectares = 247.105 acres

- 1 square mile = 640 acres = 2.58999 km²

Common Area References

- Tennis court: ~260 m² (2,800 ft²)

- Football field: ~5,351 m² (1.32 acres)

- City block (typical): ~1-2 acres

## Frequently Asked Questions

**Q: How many square feet are in an acre?**

A: One acre contains exactly 43,560 square feet. An acre is also equal to approximately 4,047 square meters or 0.4047 hectares. The acre was historically defined as the area a yoke of oxen could plow in one day.

**Q: How do I convert square feet to square meters?**

A: Multiply the square feet value by 0.09290304 to get square meters. For example, 1,000 sq ft = 1,000 × 0.09290304 = 92.903 m². This factor is exact (0.3048²).

**Q: What is the difference between a hectare and an acre?**

A: A hectare is a metric unit equal to 10,000 square meters (100m × 100m). An acre is an imperial unit equal to 43,560 square feet. One hectare is approximately 2.471 acres, so a hectare is about 2.5 times larger than an acre.

**Q: Why are area conversion factors squared?**

A: Area is a two-dimensional measurement (length × width). When you convert length units, you must apply the conversion factor twice -- once for each dimension. For example, since 1 ft = 0.3048 m, then 1 ft² = 0.3048² = 0.09290304 m².

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Source: https://vastcalc.com/calculators/conversion/area-converter
Category: Conversion
Last updated: 2026-04-21