Free Online Acres to Hectares
Acres to hectares is a fixed ratio: 1 acre = 0.4046856 hectares (1 hectare = 2.471054 acres). Two-way, instant.
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How to Use This Converter
- Type a value into either the Acres or Hectares field.
- The other field updates instantly with the conversion factor shown.
- Clear a field to start over.
What Is an Acres to Hectares?
The acre is historically the area a yoke of oxen could plough in a day; legally it's exactly 4046.8564224 m² (international acre, derived from the 1959 international foot). The hectare is a clean 10,000 m² — a square 100 m on a side. Most of the world reports rural land in hectares; the US, UK, Canada and a few other anglophone countries still use acres.
Property hunters comparing a US farm listing against an EU one, agricultural managers reading FAO reports and surveyors crossing land deeds all sit at this conversion regularly. Useful reference points: a football pitch is about 0.71 ha or 1.76 acres; a square kilometre is 100 ha or 247.105 acres.
The ratio is exact via the 1959 international yard; only the display rounding introduces any imprecision.
Frequently Asked Questions
How many hectares in an acre?
Football field size?
What is a hectare?
Published by the WeGotEveryTool team. We build and test every tool in-house and update pages when the underlying spec, formula, or recommendation changes.
Reviewed: May 2026. Disclaimer: this tool is provided as-is for general informational use. For decisions with material consequences (medical, legal, financial, security) verify results against a qualified professional source.