How to Calculate Sandbag Calculator
What is Sandbag Calculator?
A sandbag calculator estimates how many sandbags are needed to build a flood barrier of a specified height and length, and the total weight and volume of sand required.
Step-by-Step Guide
- 1A standard filled sandbag is approximately 15–20kg and 300mm × 600mm × 100mm
- 2Layers required = barrier height / sandbag height (100mm)
- 3Bags per layer = barrier length / bag length (0.5m)
- 4Total bags = layers × bags per layer
Worked Examples
Input
Barrier 10m long · 0.5m high
Result
100 sandbags
5 layers × 10m÷0.5m = 5×20 = 100