Cushion Curve Calculator

Determine cushion thickness and dynamic G-level from weight, drop height, and material properties.

Weight of the packaged item.
lbs
Expected drop height during shipping.
in
Maximum acceptable deceleration. Fragile: 25-40G, Medium: 40-60G, Rugged: 60-100G.
G
Type of cushioning material.
Surface area of product resting on cushion.
sq in

Results

Static Stress:
Weight divided by bearing area. Key parameter for cushion curve lookup.
-PSI
Recommended Thickness:
Cushion thickness needed to achieve target G at given drop height.
-in
Expected Dynamic G:
Predicted peak deceleration with recommended thickness.
-G
Cushion Volume:
Volume of cushioning material per pad.
-cu in
Assessment:
Whether the cushion design meets the target protection level.
-
Reference: ASTM D1596 Cushion Curve Testing. MIL-HDBK-304C Package Cushioning Design.