Calculate balsa wood weight from length, width, height, or diameter and density, with results in lbs and kg for blocks, sheets, and rods.

Estimate solid balsa at 7.5 lb/ftยณ by default. Open Density setting to use a measured or supplier value.

Density setting

Optional. Blank always uses 7.5 lb/ftยณ (about 120.14 kg/mยณ). Suggested values are choices, not standardized grades.

Balsa Wood Weight Formula

The following formula is used to calculate the balsa wood weight. Note: density varies by grade and moisture content; for a quick estimate you may use ฯ = 7.5 lb/ftยณ (โ‰ˆ120 kg/mยณ), this is an estimating assumption, not a universal density. Use a measured or supplier density in Density setting when available.

BWW = L ร— W ร— H ร— ฯ

Variables:

  • BWW is the balsa wood weight (lb)
  • L is the balsa wood length (ft)
  • W is the balsa wood width (ft)
  • H is the balsa wood height/thickness (ft)
  • ฯ is the balsa wood density (lb/ftยณ)

How to Calculate Balsa Wood Weight?

Select Block or sheet weight and enter its three dimensions, or Round rod weight and enter diameter and length. Density setting accepts a custom value; blank uses 7.5 lb/ftยณ in every mode. To find a block dimension instead, select that dimension and enter weight and the other two dimensions.

  1. First, determine the balsa wood length (ft).
  2. Next, determine the balsa wood width (ft).
  3. Next, determine the balsa wood height/thickness (ft).
  4. Next, gather the formula from above: BWW = L ร— W ร— H ร— ฯ.
  5. Finally, select Calculate to estimate the balsa wood weight.
  6. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

balsa wood length (ft) = 10

balsa wood width (ft) = 12

balsa wood height (ft) = 1

BWW = L ร— W ร— H ร— 7.5 = 10 ร— 12 ร— 1 ร— 7.5 = 900 lb (โ‰ˆ 408.23 kg)