   # Acres to Square Miles

This calculator provides conversion of acres to square miles (ac to sq mi) and backwards sq mi to ac.

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## Conversion Table

 acre to square miles Conversion Table: ac to sq mi 1.0 = 0.00156 2.0 = 0.00313 3.0 = 0.00469 4.0 = 0.00625 5.0 = 0.00781 6.0 = 0.00938 7.0 = 0.01094 8.0 = 0.01250 9.0 = 0.01406 acre to square miles 10 = 0.01563 20 = 0.03125 30 = 0.04688 40 = 0.06250 50 = 0.07813 100 = 0.15625 500 = 0.78125 1000 = 1.56250 5000 = 7.81250
 square miles to acres Conversion Table: sq mi to ac 1.0 = 640 2.0 = 1280 3.0 = 1920 4.0 = 2560 5.0 = 3200 6.0 = 3840 7.0 = 4480 8.0 = 5120 9.0 = 5760 square miles to acres 10 = 6400 20 = 12800 30 = 19200 40 = 25600 50 = 32000 100 = 64000 500 = 320000 1000 = 640000 5000 = 3200000

The acre (abbreviation: ac. or a., plural form: acres) is a unit of area used in several different systems, including Imperial units, English units and United States customary units. One acre = 0.0015625 square miles (mi2) = 4046.85642 square meters (m2)= 0.00404685642 square kilometers = 43560 square feet = 0.404685642 hectares = 4840 square yards = 6272640 square inches.

## Area Conversion

Square feet to square meters (sq ft to sq m)
Square meters to square feet (sq m to sq ft)
Square centimeters to square inches (sq cm to sq in)
Square inches to square centimeters (sq in to sq cm)
Square inches to square decimeters (sq in to sq dm)
Square decimeters to square inches (sq dm to sq in)
Square decimeters to square feet (sq dm to sq ft)
Square feet to square decimeters (sq ft to sq dm)
Square feet to square yards (sq ft to sq yd)
Square yards to square feet (sq yd to sq ft)
Square yards to square meters (sq yd to sq m)
Square meters to square yards (sq m to sq yd)
Square yards to acres (sq yd to ac.)
Acres to square yards (ac to sq yd)
Acres to square feet (ac to sq ft)
Square feet to acres (sq ft to ac)
Square kilometers to acres (sq km to ac)
Acres to square kilometers (ac to sq km)
Acres to square meters (ac to sq m)
Square meters to acres (sq m to ac)
Acres to square miles (ac to sq mi)
Square miles to acres (sq mi to ac)
Square miles to square kilometers (sq mi to sq km)
Square kilometers to square miles (sq km to sq mi)
Square miles to hectares (sq mi to ha)
Hectares to square miles (ha to sq mi)
Hectares to square kilometers (ha to sq km)
Square kilometers to hectares (sq km to ha)
Square meters to hectares (sq m to ha)
Hectares to square meters (ha to sq m)
Square kilometers to square meters (sq km to sq m)
Square meters to square kilometers (sq m to sq km)
Square kilometers to square yards (sq km to sq yd)
Square yards to square kilometers (sq yd to sq km)
Hectares to acres (ha to ac)
Acres to hectares (ac to ha)
Square feet to square centimeters (sq ft to sq cm)
Square centimeters to square feet (sq cm to sq ft)
Square centimeters to square millimeters (sq cm to sq mm)
Square millimeters to square centimeters (sq mm to sq cm)