Square Kilometer to Hectare Converter
Area · unit-converter
Convert Square Kilometer to Hectare with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations use square-meter-based definitions (international feet / yard standards, acre, hectare, and regional units like pyeong/tsubo).
Calculator
From: Square Kilometer (km2)
To: Hectare (ha)
About Square Kilometer
The square kilometer is a metric unit equal to one million square meters. It is standard for city sizes, large properties, and regional planning in metric countries.
About Hectare
The hectare is 10,000 square meters (100 m × 100 m). It is widely used for farmland, forests, and land registration outside the US.
How to convert square kilometers to hectares
1 square kilometer is equal to 100 hectare:
1 km2 = (1000000 m² ÷ 10000 m²) ha = 100 ha
Each square kilometer is defined as 1000000 m² and each hectare as 10000 m², so one km2 equals 1000000 ÷ 10000 ha = 100 ha.
Let a(km2) be the numeric value of the same area measured in Square Kilometer (km2), and a(ha) the value in Hectare (ha). Then:
a(ha) = a(km2) × (1000000 / 10000)
Equivalently, divide by how many km2 fit into one ha (m² per ha divided by m² per km2):
a(ha) = a(km2) ÷ 0.01
Or: hectare = square kilometer ÷ 0.01
Examples
Example #1: Convert 20 km2 to hectare
20 km2 = 20 km2 × (1000000/10000) ha = 2000 ha
20 km2 = 20 km2 ÷ 0.01 = 2000 ha
Example #2: Convert 50 km2 to hectare
50 km2 = 50 km2 × (1000000/10000) ha = 5000 ha
50 km2 = 50 km2 ÷ 0.01 = 5000 ha
Summary
To convert Square Kilometer to Hectare, multiply the value in km2 by the ratio of square meters per km2 divided by square meters per ha. Equivalently: value_ha = value_km2 × (1000000 / 10000). Numerically, 1 km2 equals 100 ha.
Relationship context
Both units are metric (SI) and tied to the square meter. Conversions use exact ratios from their m² definitions. The factor from Square Kilometer to Hectare is 1.000000e+2 (1 km2 = 100 ha).
Conversion tables
| Square Kilometer (km2) | Hectare (ha) |
|---|---|
| 0.1 | 10 |
| 1 | 100 |
| 2 | 200 |
| 3 | 300 |
| 4 | 400 |
| 5 | 500 |
| 6 | 600 |
| 7 | 700 |
| 8 | 800 |
| 9 | 900 |
| Square Kilometer (km2) | Hectare (ha) |
|---|---|
| 10 | 1,000 |
| 20 | 2,000 |
| 30 | 3,000 |
| 40 | 4,000 |
| 50 | 5,000 |
| 60 | 6,000 |
| 70 | 7,000 |
| 80 | 8,000 |
| 90 | 9,000 |
| 100 | 10,000 |