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About Coco Coir Calculator

Coco coir is usually sold in compressed 650g or 5kg bricks. They expand significantly when water is added.

Standard Expansion

  • 650g Brick: Yields ~8-9 Liters (2 Gal).
  • 5kg Block: Yields ~60-70 Liters (15+ Gal).

How to Use

Enter number of bricks and weight class. The tool calculates total volume to help you fill pots.