How do you calculate in m3 for foundations?

To calculate the volume in cubic meters (m³) for foundations, measure the length, width, and depth of the foundation in meters. Multiply these dimensions together using the formula: Volume = Length × Width × Depth. Ensure all measurements are in meters to obtain the volume directly in cubic meters. If the foundation has a complex shape, break it down into simpler geometric shapes, calculate the volume for each, and then sum them up.