Convert square km to hectares
1 km² = 100 ha · 1 ha = 0.01 km² · Exact by definition
1 km² = 100 ha
The same value in other units
- square centimetre
- 10000000000 cm²
- square metre
- 1000000 m²
- square foot
- 10763900 ft²
Settings
Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.
Convert a whole list
Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.
Area
square km to hectares: conversion table
| square kilometre | hectare |
|---|---|
| 1 km² | 100 ha |
| 2 km² | 200 ha |
| 3 km² | 300 ha |
| 5 km² | 500 ha |
| 10 km² | 1000 ha |
| 20 km² | 2000 ha |
| 25 km² | 2500 ha |
| 50 km² | 5000 ha |
| 100 km² | 10000 ha |
| 250 km² | 25000 ha |
| 500 km² | 50000 ha |
| 1000 km² | 100000 ha |
| hectare | square kilometre |
|---|---|
| 1 ha | 0.01 km² |
| 2 ha | 0.02 km² |
| 3 ha | 0.03 km² |
| 5 ha | 0.05 km² |
| 10 ha | 0.1 km² |
| 20 ha | 0.2 km² |
| 25 ha | 0.25 km² |
| 50 ha | 0.5 km² |
| 100 ha | 1 km² |
| 250 ha | 2.5 km² |
| 500 ha | 5 km² |
| 1000 ha | 10 km² |
How the conversion works
ha = km² × 100
Both units are defined exactly, so the precision of the square km to hectares result depends only on the number of decimal places you choose.
METHOD AND SOURCES
Where the conversion factors come from
Results are calculated from the unit definitions stored in the converter, not copied from a lookup table. For exact units, every value in the table follows from the same factor shown in the formula above.
- BIPM — SI Brochure
The official definitions of the International System of Units (SI).
- NIST SP 811 — Conversion factors
Conversion-factor tables for SI and non-SI units.
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