km² to acres – convert square kilometres to acres
Convert square kilometres to acres (km² to acres) to compare large metric land areas with traditional acre-based figures. This page opens the main area converter with km² → acres pre-selected.
Open the interactive km² → acres converter:
Use main converter (km² → acres) or switch to acres → km²The area converter also works with square metres, hectares, square feet and square yards so you can move between all common land units.
Quick reference: km² to acres
One square kilometre is about 247.105 acres. So: acres = km² × 247.105381. Examples:
| Area (km²) | Area (acres, approx.) |
|---|---|
| 0.5 km² | 123.55 acres |
| 1 km² | 247.11 acres |
| 2 km² | 494.21 acres |
| 5 km² | 1,235.53 acres |
| 10 km² | 2,471.05 acres |
| 20 km² | 4,942.11 acres |
Why convert km² to acres?
km² to acres is helpful when you:
- Compare farm or forest areas with national or regional statistics.
- Translate planning or zoning documents between metric and imperial units.
- Work with GIS or mapping software that reports in km² but stakeholders think in acres.
- Summarise environmental impact across large regions for mixed-unit audiences.
Other area converters on this site
This converter uses the international acre (4,046.8564224 m²). Results are rounded for readability; the calculations keep more precision internally.
Page last updated: 4 December 2025.