Select a tab to filter by unit system, choose your source unit, enter the value, and select the target unit. The All Units tab lets you convert across both metric and imperial systems in one step.
Frequently Asked Questions
What is the largest unit of area in this converter?
Square kilometers (km²) is the largest metric unit. 1 km² equals 1,000,000 m² or 247.105 acres.
How many square yards are in an acre?
1 acre equals 4,840 square yards.
What is the difference between a hectare and a km²?
1 km² equals 100 hectares. A hectare is 10,000 m² while a km² is 1,000,000 m².