---
title: "Acres to Hectares — acre to ha converter"
description: "1 acre = 0.40469 hectares. Convert acres to hectares with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/acres-to-hectares/
site: "At One Place"
---

# Acres to hectares

**1 acre in hectares: 1 acre = 0.40469 ha**

ha = acre × 0.4046856422

To convert acres to hectares, multiply by 0.4046856422. The table below gives the values people look up most often, and the converter works for any number.

## Acres to hectares table

*Common acre values converted to hectares.*

| Acres | Hectares |
| --- | --- |
| 1 acre | 0.40469 |
| 2 acre | 0.80937 |
| 3 acre | 1.214057 |
| 4 acre | 1.618743 |
| 5 acre | 2.023428 |
| 10 acre | 4.046856 |
| 15 acre | 6.070285 |
| 20 acre | 8.093713 |
| 25 acre | 10.11714 |
| 30 acre | 12.14057 |
| 40 acre | 16.18743 |
| 50 acre | 20.23428 |
| 75 acre | 30.35142 |
| 100 acre | 40.46856 |
| 250 acre | 101.1714 |
| 500 acre | 202.3428 |
| 1,000 acre | 404.6856 |

## How the conversion works

The relationship is ha = acre × 0.4046856422. Both units measure area, so the conversion is a fixed factor that never changes.

## Common questions

### How many hectares are in one acre?

One acre equals 0.40469 hectares. ha = acre × 0.4046856422.

### How do you convert acres to hectares?

Use ha = acre × 0.4046856422. So 10 acre is 4.046856 ha.

### How many acres are in one hectare?

One hectare equals 2.471054 acres, which is the reverse of the conversion above.

## Related pages

- [Hectares to Acres](https://atoneplace.net/convert/hectares-to-acres/)
- [Acres to Square meters](https://atoneplace.net/convert/acres-to-square-meters/)
- [Acres to Square kilometers](https://atoneplace.net/convert/acres-to-square-km/)
- [Acres to Square feet](https://atoneplace.net/convert/acres-to-square-feet/)
- [Acres to Square miles](https://atoneplace.net/convert/acres-to-square-miles/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)