1 km² = 100 ha (square kilometer → hectare)
1 km² = 100 ha
1 square kilometer equals 100 hectares. To convert square kilometers to hectares, multiply the square kilometer value by 100. For quick reference: 1 km² = 100 ha, 5 km² = 500 ha, 10 km² = 1000 ha, 100 km² = 10000 ha.
Hectares = Square kilometers × 100Square kilometers to hectares multiplies by 100. A 12 km² district contains 1,200 ha. This is among the cleanest conversions in the metric system, and it's how land-use statistics zoom in: a region reported in km² breaks down into hectare-denominated parcels for planning and agriculture. The common slip is multiplying by 1,000 by analogy with linear kilometers — the correct factor is 100.
Start with your value in square kilometers.
Multiply the square kilometer value by 100. This is the exact conversion factor from square kilometers to hectares.
The product is your value in hectares. For example, 5 km² × 100 = 500 ha.
The exact factor from square kilometers to hectares is 100.
Hectares = Square kilometers × 100
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Square kilometers (km²) | Hectares (ha) |
|---|---|
| 0.1 km² | 10 ha |
| 0.25 km² | 25 ha |
| 0.5 km² | 50 ha |
| 1 km² | 100 ha |
| 2 km² | 200 ha |
| 3 km² | 300 ha |
| 4 km² | 400 ha |
| 5 km² | 500 ha |
| 6 km² | 600 ha |
| 7 km² | 700 ha |
| 8 km² | 800 ha |
| 9 km² | 900 ha |
| 10 km² | 1000 ha |
| 12 km² | 1200 ha |
| 15 km² | 1500 ha |
| 20 km² | 2000 ha |
| 25 km² | 2500 ha |
| 30 km² | 3000 ha |
| 40 km² | 4000 ha |
| 50 km² | 5000 ha |
| 60 km² | 6000 ha |
| 70 km² | 7000 ha |
| 75 km² | 7500 ha |
| 80 km² | 8000 ha |
| 90 km² | 9000 ha |
| 100 km² | 10000 ha |
| 120 km² | 12000 ha |
| 150 km² | 15000 ha |
| 200 km² | 20000 ha |
| 250 km² | 25000 ha |
| 300 km² | 30000 ha |
| 400 km² | 40000 ha |
| 500 km² | 50000 ha |
| 600 km² | 60000 ha |
| 750 km² | 75000 ha |
| 800 km² | 80000 ha |
| 1000 km² | 100000 ha |
| 1200 km² | 120000 ha |
| 1500 km² | 150000 ha |
| 2000 km² | 200000 ha |
| 2500 km² | 250000 ha |
| 3000 km² | 300000 ha |
| 4000 km² | 400000 ha |
| 5000 km² | 500000 ha |
| 7500 km² | 750000 ha |
| 10000 km² | 1000000 ha |
| 20000 km² | 2000000 ha |
| 50000 km² | 5000000 ha |
| 100000 km² | 10000000 ha |
| 1000000 km² | 100000000 ha |
Manhattan is about 59 km². Lake Geneva is about 580 km². In hectares, that gives you: 1 km² = 100 ha, 10 km² = 1000 ha, 100 km² = 10000 ha.
The square kilometer equals one million square meters — the standard unit for city, region, and country areas in metric countries. Manhattan is about 59 km²; Istanbul is about 5,461 km²; Turkey is about 783,562 km². One km² equals exactly 100 hectares or about 0.386 square miles.
The hectare is the metric land unit — exactly 10,000 m², a square 100 meters on each side. It's the standard for farmland, forestry, and land registration in nearly every country outside the US. One hectare is about 2.47 acres. A rugby or soccer pitch is roughly 0.7–1 hectare.