Filler Volume Formula:
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The Bean Bag Filler Calculator helps determine the exact amount of filler material needed to fill a bean bag to your desired firmness level based on the bag's volume and your preferred fill percentage.
The calculator uses the simple formula:
Where:
Explanation: The calculation accounts for both the physical size of your bean bag and how firm you want it to be when filled.
Details: Calculating the correct amount of filler is crucial for achieving the desired comfort level and preventing overfilling (which makes the bag too firm) or underfilling (which makes it too limp).
Tips: Measure your bean bag's internal volume in cubic feet. For fill percentage, 0.7-0.8 is typically recommended for standard firmness (0.7 = 70% full). All values must be valid (volume > 0, percentage between 0-1).
Q1: How do I measure my bean bag's volume?
A: Calculate length × width × height in feet for rectangular bags. For irregular shapes, estimate by comparing to a box that would contain it.
Q2: What's the ideal fill percentage?
A: Most people prefer 70-80% (0.7-0.8). Lower percentages create a softer bag, higher percentages make it firmer.
Q3: What types of filler can I use?
A: Common options include EPS beads, shredded foam, or natural materials like buckwheat hulls.
Q4: Should I account for filler compression over time?
A: Some fillers may compress 10-20% over time, so you might want to add slightly more initially.
Q5: Can I mix different filler types?
A: Yes, but calculate each type separately based on the percentage of the total volume it will occupy.