Area Unit Converter | Convert between Square Meters, Hectares, Acres and more
Online area unit converter that supports precise conversion between square meters, square kilometers, hectares, acres, square feet and more with professional results and reference knowledge.
Area Unit Knowledge
Area Unit Basics
Area units are standards for measuring the size of two-dimensional surfaces. The basic unit of area in the International System of Units (SI) is the square meter (m²), defined as the area of a square with sides of 1 meter.
Metric and Imperial Area Units
Metric area units include square meters, hectares, square kilometers, etc., increasing by factors of 10. Imperial area units include square feet, square yards, acres, etc., with more complex conversion relationships.
Common Conversion Ratios
- 1 square kilometer = 100 hectares = 1,000,000 square meters
- 1 hectare = 10,000 square meters
- 1 acre ≈ 4,047 square meters
- 1 square foot ≈ 0.093 square meters
- 1 square inch ≈ 6.45 square centimeters.
Land Area Measurement
- Common units for land area include hectares, acres, and mu. 1 hectare equals 10,000 square meters
- 1 acre is approximately 0.4047 hectares
- traditional Chinese mu is about 666.67 square meters.
Scientific and Engineering Applications
In scientific research and engineering, area units are used to measure surface area, land area, cross-sectional area, and more. Different scales use different units, from microscopic square nanometers to macroscopic square kilometers.