Area & Volume Calculators | Free Construction Calculators

About Geometric Calculations

Geometric calculations are fundamental to construction planning and design. Understanding areas and volumes helps with material estimation, capacity planning, and space utilization for various construction projects.

Circle Calculations

• Area: π × radius²
• Circumference: 2 × π × radius
• Applications: Round columns, circular patios, tanks, curved walls

Triangle Calculations

• Base-Height Method: Area = (base × height) / 2
• Herons Formula: For three known sides
• Applications: Roof gables, triangular spaces, structural bracing

Cylinder Calculations

• Volume: π × radius² × height
• Surface Area: 2πr(r + h)
• Applications: Water tanks, pipes, columns, cylindrical piers

Sphere Calculations

• Volume: (4/3) × π × radius³
• Surface Area: 4 × π × radius²
• Applications: Spherical tanks, domes, storage vessels

Room Volume Calculations

• Volume: length × width × height
• Applications: HVAC sizing, paint estimation, space planning
• Additional Calculations: Wall area, floor area, material needs

Common Unit Conversions

• 1 cubic foot = 7.48 gallons
• 1 cubic foot = 28.32 liters
• 1 square foot = 0.0929 square meters
• 1 cubic foot = 0.0283 cubic meters