1 ha = 0.01 km² (hectare → square kilometer)
1 ha = 0.01 km²
1 hectare equals 0.01 square kilometers. To convert hectares to square kilometers, multiply the hectare value by 0.01. For quick reference: 1 ha = 0.01 km², 5 ha = 0.05 km², 10 ha = 0.1 km², 100 ha = 1 km².
Square kilometers = Hectares × 0.01Hectares to square kilometers divides by 100 — 1 km² is exactly 100 ha. A 350 ha forest block is 3.5 km². The conversion is a two-decimal shift, and the two units split cleanly by scale: hectares for farms, parks, and parcels; km² for municipalities and regions. Agricultural statistics switch between them constantly, so keeping the factor of 100 (not 1,000) straight is the whole game.
Start with your value in hectares.
Multiply the hectare value by 0.01. This is the exact conversion factor from hectares to square kilometers.
The product is your value in square kilometers. For example, 5 ha × 0.01 = 0.05 km².
The exact factor from hectares to square kilometers is 0.01.
Square kilometers = Hectares × 0.01
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| Hectares (ha) | Square kilometers (km²) |
|---|---|
| 0.1 ha | 0.001 km² |
| 0.25 ha | 0.0025 km² |
| 0.5 ha | 0.005 km² |
| 1 ha | 0.01 km² |
| 2 ha | 0.02 km² |
| 3 ha | 0.03 km² |
| 4 ha | 0.04 km² |
| 5 ha | 0.05 km² |
| 6 ha | 0.06 km² |
| 7 ha | 0.07 km² |
| 8 ha | 0.08 km² |
| 9 ha | 0.09 km² |
| 10 ha | 0.1 km² |
| 12 ha | 0.12 km² |
| 15 ha | 0.15 km² |
| 20 ha | 0.2 km² |
| 25 ha | 0.25 km² |
| 30 ha | 0.3 km² |
| 40 ha | 0.4 km² |
| 50 ha | 0.5 km² |
| 60 ha | 0.6 km² |
| 70 ha | 0.7 km² |
| 75 ha | 0.75 km² |
| 80 ha | 0.8 km² |
| 90 ha | 0.9 km² |
| 100 ha | 1 km² |
| 120 ha | 1.2 km² |
| 150 ha | 1.5 km² |
| 200 ha | 2 km² |
| 250 ha | 2.5 km² |
| 300 ha | 3 km² |
| 400 ha | 4 km² |
| 500 ha | 5 km² |
| 600 ha | 6 km² |
| 750 ha | 7.5 km² |
| 800 ha | 8 km² |
| 1000 ha | 10 km² |
| 1200 ha | 12 km² |
| 1500 ha | 15 km² |
| 2000 ha | 20 km² |
| 2500 ha | 25 km² |
| 3000 ha | 30 km² |
| 4000 ha | 40 km² |
| 5000 ha | 50 km² |
| 7500 ha | 75 km² |
| 10000 ha | 100 km² |
| 20000 ha | 200 km² |
| 50000 ha | 500 km² |
| 100000 ha | 1000 km² |
| 1000000 ha | 10000 km² |
A full-size soccer pitch is roughly 0.7 ha. European farm sizes are typically quoted in hectares — the EU average is around 17 ha.
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.
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.