# Packaging calculators

- [Concrete bag calculator](https://www.egpbags.com/tools/concrete-bag-calculator/): Free concrete bag calculator: work out how many 40, 50, 60, 80 or 90 lb (or 25 kg) bags of concrete you need for a slab, footing or fence post holes.
- [Sandbag calculator](https://www.egpbags.com/tools/sandbag-calculator/): Sandbag calculator for flood walls: enter wall length and height to get the number of sandbags and tons of sand, using the standard pyramid-stacking method.
- [Bulk bag size calculator](https://www.egpbags.com/tools/bulk-bag-calculator/): Bulk bag calculator: enter fill weight and bulk density to get the right FIBC (super sack) dimensions in cm and inches, product volume and safe working load.