EVERYDAY
Area
Surface, land and cross-sectional area.
Try a decimal, 1e-9, 1/3, or 5 1/2.
Result0.404686 ha1 acre = 0.404686 ha
EVERYDAY · ENGINEERING · SCIENCE
acre to ha Converter
Convert acre (acre) to hectare (ha). Enter a value for an instant result, or use the examples and reverse conversion below.
520units ready to convert
HOW IT IS CALCULATED
Convert through square metre
Enter a acre value to calculate hectare with full internal precision before display rounding.
Display PrecisionAuto · 6 significant digits
Auto trims unnecessary zeroes and uses scientific notation for extreme magnitudes. Use Digits to set the display precision; calculations retain full precision.
QUICK REFERENCE
All units in this quantity
| Unit | Symbol | Converted value |
|---|---|---|
| square micrometrefrom acre | µm² | 4.04686e15 |
| square millimetrefrom acre | mm² | 4046860000 |
| square centimetrefrom acre | cm² | 40468600 |
| square decimetrefrom acre | dm² | 404686 |
| square metrefrom acre | m² | 4046.86 |
| arefrom acre | a | 40.4686 |
| hectarefrom acre | ha | 0.404686 |
| square kilometrefrom acre | km² | 0.00404686 |
| square inchfrom acre | in² | 6272640 |
| square footfrom acre | ft² | 43560 |
| square yardfrom acre | yd² | 4840 |
| acrefrom acre | acre | 1 |
| square milefrom acre | mi² | 0.0015625 |
| barnfrom acre | b | 4.04686e31 |
SI symbols follow international notation. U.S. and Imperial measures are labelled separately where their values differ.
acre to ha Conversion Reference
Acre (acre) and hectare (ha) are units of area. Use this page to convert in either direction.
Conversion Examples
| Acre (acre) | Hectare (ha) |
|---|---|
| 1 acre | 0.404686 ha |
| 5 acre | 2.02343 ha |
| 10 acre | 4.04686 ha |
| 100 acre | 40.4686 ha |
Examples are rounded to 6 significant digits. The interactive converter retains full calculation precision; change Display Precision to see more digits.
Reverse Conversion
Related Area Conversions
acre to µm² (acre to square micrometre)acre to mm² (acre to square millimetre)acre to cm² (acre to square centimetre)acre to dm² (acre to square decimetre)acre to m² (acre to square metre)acre to a (acre to are)acre to km² (acre to square kilometre)acre to in² (acre to square inch)acre to ft² (acre to square foot)acre to yd² (acre to square yard)acre to mi² (acre to square mile)acre to b (acre to barn)