Measurement Unit Converter
Convert between various length, area, and volume units.
Understanding Measurement Units
Different industries and countries use different measurement systems. The metric system (meters, hectares, square kilometers) is the international standard for scientific work and is used in most GIS applications. The imperial system (feet, acres, square miles) remains common in the USA.
Common Conversions for Surveying & Mapping
- 1 Meter = 3.281 feet = 39.37 inches
- 1 Hectare = 2.471 acres = 10,000 square meters
- 1 Square Kilometer = 247.1 acres = 0.386 square miles
- 1 Acre = 4,047 square meters = 0.405 hectares
Frequently Asked Questions About Unit Conversions
1 hectare = 2.471 acres. Conversely, 1 acre = 0.4047 hectares. For quick mental math: hectares × 2.5 ≈ acres. A hectare is 10,000 square meters (100m × 100m).
Surveying uses meters (SI/metric), feet (US/UK), chains (66 feet), and rods/perches (16.5 feet). Modern drone mapping typically uses meters (SI) or feet (US). Area is measured in hectares, acres, or square feet/meters depending on region.
Divide square meters by 4,047 to get acres. Example: 10,000 m² ÷ 4,047 = 2.471 acres. Our converter handles this automatically along with hectares, square feet, and other common units.