Advanced Area Calculator | Free Online GeoCalc
Blue theme GeoCalc tool
Advanced Area Calculator | Free Online GeoCalc
Calculate the area of common 2D shapes with dynamic formulas, unit-aware results, and quick conversions in one clean and responsive geometry calculator.
Shape details
Select a shape, enter its dimensions, and calculate the area instantly.
Choose the geometry you want to measure.
All entered dimensions use this unit.
Enter the first required dimension.
Enter the second required dimension.
Enter the third required dimension.
Live summary
Formula and preview values update as you change the shape.
Selected shape Rectangle
Formula A = l × w
Entered dimensions Length: 12 cm, Width: 8 cm
Area preview 96.00 cm²
Included shapes: rectangle, square, triangle, circle, trapezoid, parallelogram, ellipse, and sector.
Calculated area
96.00 cm²
Your area result summary will appear here.
Review source units and converted units together
Area in Selected Unit 96.00 cm²
Area in Square Meters 0.0096 m²
Area in Square Feet 0.1033 ft²
Area in Hectares 0.000001 ha
Formula breakdown A = 12 × 8 = 96
